This Toyota Prado needed car air conditioning in Kingsley after the system started losing its cooling performance. CMM Automotive attended the vehicle in Kingsley to diagnose the problem.
We inspected the air conditioning system and carried out leak testing. Our testing traced the refrigerant loss to a leaking air conditioning condenser.
The condenser sits at the front of the vehicle and plays an important role in the air conditioning system. Its location also exposes it to dirt, stones, insects and other road debris. Over time, damage or corrosion can cause the condenser to develop a refrigerant leak.
Finding the leak allowed us to identify the correct repair before carrying out an aircon regas.
CMM Automotive diagnosing a leaking air conditioning condenser on a Toyota Prado during a mobile callout in Kingsley.
Leaking Air Conditioning Condenser
The condenser helps remove heat from the high-pressure refrigerant after it leaves the compressor. Air flowing through the condenser helps cool the refrigerant before it continues through the system.
A leaking condenser allows refrigerant to escape. As the refrigerant level falls, the air conditioner can gradually lose its ability to cool the cabin.
On this Toyota Prado, our testing confirmed that the condenser was the source of the refrigerant leak. We could then recommend the correct repair instead of simply adding more refrigerant.
Repairing the source of a leak first can help prevent repeated regassing and refrigerant loss.
We diagnose condenser leaks, compressor problems, leaking hoses, TX valve faults and many other air conditioning issues. We also test system pressures and cooling performance at the vehicle’s location.
If your vehicle’s air conditioner gradually stops cooling, a refrigerant leak may be the cause. Proper testing can locate the leak and identify the repair needed to restore reliable cooling.
This Toyota Corolla needed a car aircon repair in Warwick after the air conditioning system started losing refrigerant. CMM Automotive attended the vehicle in Warwick and carried out testing to find the source of the leak.
We inspected the air conditioning system and checked the hoses and connections for signs of refrigerant loss. Our testing traced the problem to a leaking low-pressure air conditioning hose.
A damaged or leaking hose can slowly release refrigerant from the system. As the refrigerant level drops, the air conditioner may struggle to produce cold air. Eventually, the system may stop cooling altogether.
Finding the leak allowed us to identify the correct repair before adding more refrigerant.
CMM Automotive diagnosing a leaking low-pressure air conditioning hose on a Toyota Corolla in Warwick.
Leaking Low-Pressure Aircon Hose
Air conditioning hoses carry refrigerant between the major components of the system. They must remain properly sealed while handling changes in pressure and temperature.
Age, vibration and general wear can eventually cause an aircon hose to leak. Leaks can also develop around hose crimps and connections.
On this Toyota Corolla, we identified the low-pressure hose as the source of the refrigerant loss. We could then repair the fault before servicing the system.
This approach helps prevent the vehicle from simply losing its refrigerant again after a regas.
We diagnose leaking hoses, compressors, TX valves, Schrader valves and many other air conditioning faults. We can also check system pressures and cooling performance at the vehicle’s location.
If your air conditioner gradually becomes warmer, the system may have developed a refrigerant leak. Finding the leak first can save repeated regassing and help restore reliable cooling.
This Suzuki neededcar air conditioning in Cannington after the system stopped cooling correctly. CMM Automotive attended the vehicle at the customer’s location to diagnose the fault.
We inspected the air conditioning system and carried out several tests. During the vacuum test, we found that the system would not hold vacuum correctly. This indicated a leak somewhere within the air conditioning system.
Further testing traced the leak to the air conditioning compressor. The compressor could not maintain the required vacuum, confirming that it had developed a leak.
Finding this fault was important before attempting to regas the system.
CMM Automotive diagnosing an air conditioning compressor leak on a Suzuki during a mobile callout in Cannington.
Air Conditioning Compressor Leak
The compressor plays a major role in circulating refrigerant through a vehicle’s air conditioning system. A leaking compressor can allow refrigerant to escape and eventually cause the air conditioner to stop cooling.
Vacuum testing can help identify whether an air conditioning system has a leak before adding refrigerant. If the system loses vacuum, we need to locate the cause before continuing with the service.
On this Suzuki, our testing identified the compressor as the source of the problem. This allowed us to recommend the correct repair instead of simply regassing a leaking system.
We diagnose compressor problems, refrigerant leaks, TX valve faults and electrical issues. We can also test system pressures and cooling performance at the vehicle’s location.
If your car air conditioner has stopped cooling, adding refrigerant may not solve the problem. Finding the cause of the refrigerant loss can prevent the system from quickly losing its charge again.
CMM Automotive provides mobile air conditioning diagnosis and repairs across the Perth metropolitan area.
This Kia needed acar aircon repair in Woodvale after the air conditioning system developed a refrigerant leak. CMM Automotive attended the vehicle at the customer’s location and started testing the system.
Our inspection found refrigerant leaking from the high-pressure Schrader valve. Schrader valves provide service access to the air conditioning system. Although they are small components, a leaking valve can eventually cause the system to lose enough refrigerant to affect cooling performance.
We checked the high-pressure service port closely and confirmed the leak around the Schrader valve. Finding the leak allowed us to repair the actual fault instead of simply adding more refrigerant.
CMM Automotive repairing a leaking high-pressure air conditioning Schrader valve on a Kia in Woodvale.
High-Pressure Schrader Valve Leak
A car air conditioning system relies on the correct refrigerant charge to cool the cabin efficiently. Even a small leak can gradually reduce that charge.
Schrader valves can develop leaks as seals age or deteriorate. Dirt or damage around the valve can also prevent it from sealing correctly.
On this Kia, we repaired the leaking high-pressure Schrader valve before servicing the air conditioning system. We then checked the system to make sure it operated correctly.
We diagnose refrigerant leaks, compressor faults, electrical problems and pressure-related issues at the vehicle’s location. We also check system pressures and cooling performance to help identify the cause of poor air conditioning.
If your vehicle’s air conditioner starts losing its cooling performance, a refrigerant leak may be the cause. Finding and repairing the leak first can prevent repeated regassing without fixing the underlying problem.
CMM Automotive provides convenient mobile car aircon diagnosis and repairs across the Perth metropolitan area.
This Mazda BT-50 needed a car air conditioning repair in Gwelup after the air conditioning system stopped cooling correctly CMM Automotive attended the vehicle at the customer’s location to diagnose the problem.
When testing the air conditioning system, we found extremely low pressure on the low side. This reading indicated a possible restriction in the refrigerant flow. We carried out further testing before replacing any components.
CMM Automotive diagnosing a Mazda BT-50 air conditioning fault during a mobile callout in Gwelup.
Faulty TX Valve Found
The testing eventually traced the problem to a faulty TX valve (thermal expansion valve). The TX valve controls the amount of refrigerant entering the evaporator. When the TX valve becomes restricted, the low-side pressure can drop significantly. The evaporator may then receive insufficient refrigerant to cool the vehicle properly
On this Mazda BT-50, the unusually low suction pressure was an important clue that helped identify the restriction.
After diagnosing the faulty TX valve, we carried out the correct repair instead of simply regassing the system and hoping the problem disappeared.
Mobile Car Air Conditioning Perth
CMM Automotive provides mobile car air conditioning Perth diagnostics and repairs throughout Gwelup and surrounding Perth suburbs. We can test air-conditioning pressures, vent temperatures and system operation at the vehicle’s location to help identify faults including TX valves, compressors, condensers, refrigerant leaks and electrical problems.
If your car air conditioner is not cooling properly, accurate diagnosis can help find the actual cause before adding unnecessary parts or refrigerant
If you’re searching forjump start my car Perth, a failed battery may not always be the original problem. CMM Automotive recently attended a Honda in Scarborough after the vehicle developed a battery and starting problem.
Honda Battery Failed in Scarborough
The Honda’s battery had failed and the vehicle could no longer start correctly. At first, it would have been easy to assume that the battery had simply reached the end of its service life.
However, checking why a battery has failed can be just as important as getting the vehicle started again.
CMM Automotive attended the Honda in Scarborough and inspected the battery and charging system. Our testing found that the alternator was producing too much charging voltage.
An alternator should maintain the vehicle’s electrical system within the correct voltage range. When an alternator overcharges, excessive voltage can damage the battery and other electrical components.
In this case, the overcharging alternator had contributed to the battery failure.
CMM Automotive attending a Honda in Scarborough after an overcharging alternator caused the vehicle’s battery to fail.
Checking the Charging System After a Jump Start
A mobile car jump start may get a vehicle running, but it does not necessarily fix the cause of the flat or failed battery.
Once an engine is running, we can check the alternator output and battery condition. This can reveal charging problems that may otherwise go unnoticed.
An alternator can fail in different ways. Some alternators stop charging completely, while others can produce excessive voltage. Both faults can eventually leave the vehicle with battery and starting problems.
Finding the charging fault can also prevent a replacement battery from suffering the same damage.
We come directly to homes, workplaces and other safe locations. We can test the battery and check the charging system before recommending the next step.
If your vehicle won’t start and you’re searching for someone to jump start my car in Perth, CMM Automotive can come to you and investigate why the problem occurred.
If you’re searching forjump start my car Perth, a battery failure can happen when you least expect it. CMM Automotive recently attended a Mazda in Perth after its battery failed while the owner was at the shops.
Mazda Would Not Start After Shopping
The Mazda had recently been serviced by a family member. However, the battery had not been tested during the service.
The owner drove to the shops without noticing any major starting problems. When it was time to leave, the Mazda would not start. The battery no longer had enough power to crank the engine correctly.
This situation shows why battery testing can be a useful part of routine vehicle servicing. A battery may continue starting a vehicle while its performance slowly declines. The owner may receive very little warning before it finally fails.
Age, heat and repeated starting can all affect battery performance. Short trips can also make it harder for a weak battery to recover its charge.
CMM Automotive providing mobile jump start assistance for a Mazda after its battery failed unexpectedly at the shops.
Mobile Jump Start and Battery Testing
CMM Automotive attended the Mazda at the shopping centre and inspected the battery. We then provided the mobile car jump start needed to get the vehicle running.
Battery testing helps determine whether a battery has simply lost its charge or has reached the end of its useful life. We can also check the charging system while the engine is running.
These checks can help prevent another unexpected starting problem.
If testing confirms that the battery has failed, CMM Automotive can also supply and fit a suitable replacement battery at the vehicle’s location.
Flat Battery Assistance Across Perth
A flat battery at the shops can quickly turn a simple trip into an inconvenient situation. Fortunately, you don’t always need to organise a tow truck or find someone with jumper leads.
If your vehicle won’t start and you’re searching for someone to jump start my car in Perth, CMM Automotive can come to you. We can test the battery, check the charging system and help get you moving again.
If you’re searching forjump start my car Perth, the battery may not always be the real cause of the problem. CMM Automotive recently attended a Ford in Wembley after the vehicle’s battery went flat and the engine would no longer start.
Ford With a Flat Battery in Wembley
The owner initially suspected that the Ford simply had a flat battery. However, a battery can lose its charge when the vehicle’s alternator stops working correctly.
The alternator supplies electrical power while the engine is running. It also keeps the battery charged during normal driving.
When an alternator stops charging, the vehicle begins relying on the power stored in the battery. Eventually, that stored power becomes too low to operate the vehicle correctly.
The first warning may be a battery light on the dashboard. Other signs can include dim lights, electrical problems or difficulty starting the engine.
CMM Automotive attending a Ford in Wembley after an alternator charging fault caused the vehicle’s battery to go flat.
Mobile Jump Start and Charging System Testing
CMM Automotive attended the Ford in Wembley to investigate the starting problem. We provided the mobile car jump start needed to get the engine running.
Once the Ford was running, we tested the charging system. Our testing showed that the alternator was no longer charging the battery correctly.
This explained why the battery had gone flat. Simply replacing or recharging the battery would not have fixed the underlying problem. The new or recharged battery would eventually lose its charge again.
Checking the charging system after a jump start can help identify this type of fault.
Need a Jump Start in Perth?
CMM Automotive provides mobile jump start services across Perth for vehicles with flat batteries and starting problems. We can come directly to your home, workplace or another safe location.
If your car won’t start and you’re searching for someone to jump start my car in Perth, CMM Automotive can help. We can test the battery and charging system to determine why your vehicle has failed to start.
If you need to jump start your car in Perth, a flat battery may not always mean the battery itself has failed. CMM Automotive recently attended a Nissan Pulsar in Yokine after the vehicle developed starting problems and the battery went flat.
Nissan Pulsar With a Flat Battery
The owner of the Nissan Pulsar found that the vehicle would no longer start correctly. A flat battery was the obvious first concern. CMM Automotive attended the vehicle to provide mobile assistance and investigate the cause.
During our initial inspection, we found a poor connection at one of the battery terminals. A battery terminal needs a clean and secure connection. This allows electrical current to flow correctly between the battery and the vehicle.
A loose, damaged or badly connected terminal can cause several problems. These may include slow cranking, intermittent starting, electrical problems or a battery that continually loses charge.
CMM Automotive attending a Nissan Pulsar in Yokine after a faulty battery terminal caused flat-battery and starting problems.
Finding the Cause Before Replacing the Battery
Rather than simply fitting another battery, we checked the battery connections and identified the faulty terminal.
CMM Automotive repaired the battery-terminal connection and then provided the mobile car jump start needed to get the Nissan Pulsar running again. We could then check the vehicle’s charging system and confirm that it was operating correctly.
This is an important part of diagnosing a flat battery. Replacing a battery without checking the connections and charging system could leave the owner with exactly the same starting problem later.
Mobile Jump Start Service Across Perth
If your vehicle has a flat battery, clicks when you turn the key or has intermittent starting problems, CMM Automotive can come directly to your location.
Our mobile jump start Perth service includes checking the battery and basic charging system to help identify why the vehicle has failed to start.
If you’re stranded and searching for someone to jump start my car in Perth, CMM Automotive provides convenient mobile assistance across Perth to help diagnose the problem and get your vehicle moving again.
If you’re searching for jump start my car Perth because your vehicle suddenly refuses to start, a weak or flat battery may be the cause. CMM Automotive recently attended a Ford Ranger in Padbury that was turning over very slowly but would not start.
CMM Automotive providing mobile jump start assistance for a Ford Ranger with a flat battery in Padbury.
Ford Ranger Cranking Slowly in Padbury
When the owner tried to start the Ford Ranger, the engine would still crank. However, it was turning over much slower than normal. After several attempts to start the vehicle, the engine eventually flooded and became even more difficult to start.
A battery does not have to be completely flat before it causes starting problems. A weak battery may still operate the lights, radio and other accessories. However, it may not provide enough power to crank the engine at the correct speed.
This is why slow engine cranking is often one of the first signs of a weak battery.
Mobile Jump Start and Battery Testing
CMM Automotive attended the Ford Ranger in Padbury and tested the battery before carrying out the mobile car jump start. With sufficient battery power available, we could crank the engine at the correct speed and get the Ranger running again.
Once the engine was running, we checked the battery and charging system. These checks help determine whether the battery has simply discharged or whether another problem has caused the vehicle to lose battery power.
Common causes can include an ageing battery, a charging-system fault, lights or accessories being left switched on, or a vehicle sitting unused for an extended period.
Need a Car Jump Start in Perth?
If your vehicle is cranking slowly, clicking when you turn the key or refusing to start, repeatedly trying to start it can make the situation worse.
CMM Automotive provides mobile jump start services across Perth. We come directly to homes, workplaces and other safe locations to diagnose starting and battery problems.
If you’re stuck with a flat battery and thinking, “I need someone to jump start my car in Perth”, CMM Automotive can test the battery and charging system and help get you moving again.
Mobile Car Air Conditioning Perth diagnosis involves much more than checking whether a vehicle needs an A/C regas. We recently inspected a Nissan in Hocking with an air conditioning system that was not operating correctly.
The Nissan had poor air conditioning performance, so CMM Automotive tested the system to find the cause. Our diagnosis identified afaulty TX valve, also known as a thermal expansion valve.
This small component plays an important role in controlling refrigerant flow through the air conditioning system.
Nissan Air Conditioning Not Cooling Properly
Poor cooling from the vents can have several possible causes.
Low refrigerant is one possibility. However, compressors, condensers, electrical components and TX valves can also cause poor A/C performance.
For this reason, we did not assume that the Nissan simply needed more refrigerant.
Testing the system allowed us to investigate how the air conditioning was operating. The results eventually led us to the faulty TX valve.
What Does an A/C TX Valve Do?
The TX valve controls the amount of refrigerant entering the evaporator.
It needs to regulate refrigerant flow as the operating conditions of the air conditioning system change. This helps the evaporator work efficiently and produce cold air through the vehicle’s vents.
If the TX valve stops working correctly, refrigerant flow can become restricted or poorly controlled.
The result can be poor cooling performance from the air conditioning system.
Symptoms of a Faulty TX Valve
A faulty TX valve can produce symptoms that may initially appear similar to other A/C problems.
The air from the vents may not become cold enough. Cooling performance may also vary under different driving conditions.
System pressures can also provide useful information during diagnosis.
However, poor cooling alone does not confirm that the TX valve has failed. The complete A/C system needs to be assessed before replacing components.
Simply adding refrigerant will not repair a faulty TX valve.
This is why CMM Automotive tests the air conditioning system before recommending repairs.
Several faults can produce similar symptoms from inside the vehicle. The driver may only notice that the vents are blowing warm or slightly cool air.
The cause could be very different under the bonnet or inside the A/C system.
Testing pressures and system performance helps us narrow down the possibilities. We can then identify the component responsible for the fault.
For this Nissan in Hocking, the diagnosis identified the TX valve as the problem.
Faulty Nissan A/C TX valve diagnosed by CMM Automotive in Hocking.
TX Valve Faults and Refrigerant Flow
The TX valve has an important job despite its relatively small size.
Too little refrigerant flow through the evaporator can reduce cooling performance. Incorrect refrigerant control can also affect how efficiently the system operates.
A correctly functioning TX valve responds to changing A/C conditions. A faulty valve may no longer regulate that flow properly.
Replacing refrigerant alone cannot correct this type of mechanical fault.
We can investigate systems that blow warm air, cool poorly or operate intermittently. Our testing can also help identify refrigerant leaks and component faults.
This Nissan in Hocking is a good example of why diagnosis should come before replacing parts or regassing the system.
The poor A/C performance was caused by a faulty TX valve. Finding the actual fault allowed the correct repair to be recommended.
If your vehicle’s air conditioning is not getting cold enough, it does not automatically mean it needs more gas.
CMM Automotive can inspect the system at your location and investigate what is causing the problem. Correct diagnosis can save time and help avoid unnecessary A/C repairs.
Mobile Car Air Conditioning Perthdiagnosis can sometimes involve finding an air conditioning leak that does not occur all the time. We recently inspected a Toyota from Morley with an unusual refrigerant leak.
The vehicle had a faulty air conditioning evaporator. However, the leak was not present every time we tested the system.
The evaporator would leak and then appear to seal itself again. The fault could reappear around two days later. This made the problem much more difficult to identify than a constant refrigerant leak.
Toyota Air Conditioning Losing Refrigerant
When a vehicle loses A/C refrigerant, the first step is to find where it is escaping.
A large, constant leak can sometimes be relatively straightforward to locate. An intermittent leak can be much harder.
During testing of this Toyota, the system did not always show the same result. At certain times the evaporator would leak. At other times it appeared to hold pressure correctly.
This meant a single test could easily miss the problem.
Intermittent Toyota A/C evaporator leak diagnosed by CMM Automotive in Morley.
Intermittent A/C Evaporator Leak
The air conditioning evaporator is located inside the vehicle’s HVAC system. Its position can make evaporator faults more challenging to diagnose than some engine bay leaks.
In this Toyota, the evaporator had developed an intermittent leak.
The unusual part was how the fault behaved. The evaporator could leak refrigerant and later appear to seal again.
Around two days later, the leak could return.
This type of fault demonstrates why air conditioning diagnosis sometimes requires more than one quick test.
Why Can an A/C Leak Be Difficult to Find?
Not every refrigerant leak behaves in the same way.
Temperature and system pressure can change while a vehicle is being driven or parked. Components also expand and contract as their temperature changes.
A small fault may therefore leak under certain conditions but appear sealed under others.
This can make an intermittent A/C leak difficult to locate.
A system might even pass a test at one point and show signs of leakage later. For this reason, previous symptoms and test results can provide valuable information.
Proper A/C Leak Detection Matters
Repeatedly adding refrigerant does not repair the source of a leak.
If refrigerant continues to disappear, further investigation is required.
This is particularly important when dealing with an intermittent fault.
In the case of this Toyota from Morley, the faulty evaporator explained the refrigerant loss. The intermittent nature of the leak explained why the fault was difficult to confirm.
Signs of a Leaking Car A/C Evaporator
A leaking evaporator may cause the air conditioning to gradually lose cooling performance.
The system may initially blow cold air after being serviced. Cooling performance can then become weaker as refrigerant escapes.
Eventually, the air from the vents may no longer feel cold.
An evaporator leak may also be difficult to see because the component sits inside the HVAC housing.
Proper testing is therefore important when an evaporator problem is suspected.
Mobile Car Air Conditioning Diagnosis in Perth
This Toyota from Morley is a good example of why refrigerant leaks are not always straightforward.
The evaporator did not leak continuously. It could leak, seal itself again and then show the fault approximately two days later.
A quick test performed while the evaporator was sealed could potentially miss the problem.
CMM Automotive providesmobile car air conditioning service in Perthfor many common and unusual A/C faults. We can test systems for leaks and investigate poor cooling performance.
If your vehicle keeps losing refrigerant after an A/C service, there may be a leak that needs further investigation.
Finding the actual cause is important before carrying out further repairs or adding more refrigerant.
Mobile Car Air Conditioning Perth services often involve finding refrigerant leaks before an air conditioning system can be correctly regassed. We recently attended a Hyundai in Balcatta with an air conditioning problem.
The vehicle’s A/C was not performing as it should. Before adding refrigerant, CMM Automotive inspected and tested the system. We needed to find out why the air conditioning had lost performance.
A vehicle that has lost refrigerant should be checked for leaks before being repeatedly regassed.
Some leaks can be very small and may take time to reduce the system’s performance. Other leaks can allow refrigerant to escape much faster.
Common leak areas can include hoses, seals, condensers and service valves. Compressors and other A/C components can also develop leaks.
Testing helps narrow down the cause.
Once we identified the leaking low-pressure Schrader valve on this Hyundai, we knew where the refrigerant was escaping.
Small A/C Parts Can Cause Big Problems
The Schrader valve is a small component compared with an A/C compressor or condenser. However, its job is still important.
If the valve does not seal correctly, the system cannot retain its refrigerant.
This Hyundai in Balcatta demonstrates why proper diagnosis matters. A relatively small leak can eventually cause the entire air conditioning system to perform poorly.
Replacing or repairing the leaking component first can help prevent the refrigerant from escaping again.
If your vehicle is no longer blowing cold air, the system may have lost refrigerant. However, finding out why it has lost refrigerant is an important part of the repair process.
Our mobile service allows us to inspect and test many air conditioning problems at your location.
This Hyundai in Balcatta had a leaking low-pressure Schrader valve. Correct testing allowed us to identify the source of the refrigerant loss.
If your vehicle’s A/C is losing its cooling performance, CMM Automotive can test the system and investigate the cause. Finding the fault first can provide a more effective repair than simply regassing the system again.
Mobile Car Air Conditioning Perth services often involve diagnosing faults that only appear under certain conditions. We recently attended a Range Rover in Padbury with an unusual air conditioning problem. The A/C would not start working straight away.
The owner explained that the air conditioning could take around 20 minutes before it started working. Once it began operating, the system could produce cold air. However, waiting 20 minutes for the A/C to start was a clear sign that something was wrong.
Range Rover A/C compressor fault diagnosed by CMM Automotive in Padbury.
Range Rover Air Conditioning Not Working
An air conditioning system that starts working after a long delay can have several possible causes. The problem may involve an electrical component, pressure issue, sensor or compressor fault.
For this reason, we needed to diagnose the system rather than assume it simply required more refrigerant.
CMM Automotive tested the Range Rover’s air conditioning system to determine why it would not operate correctly from startup.
The A/C compressor was not operating correctly when the system was first switched on. After approximately 20 minutes, it would eventually begin working.
This explained the unusual symptoms the owner had experienced.
The compressor is an important part of a vehicle’s air conditioning system. It circulates refrigerant through the system and allows the cooling process to take place.
When a compressor develops a fault, the symptoms can vary. Some compressors may stop working completely. Others can operate intermittently or take time before they begin working correctly.
In this Range Rover, the delayed operation was an important clue during our diagnosis.
Why Does Car Air Conditioning Work After 20 Minutes?
If your car’s air conditioning takes 10, 15 or 20 minutes before it becomes cold, the system needs further investigation.
It does not automatically mean the refrigerant level is low.
The problem could involve the compressor, an electrical control, a sensor or another A/C component. Proper testing helps determine which part of the system is responsible.
Simply adding refrigerant without finding the fault may not solve the problem.
Intermittent air conditioning faults can sometimes be harder to find than a system that has completely stopped working.
The technician may need to observe the system while the fault is occurring. Comparing its operation before and after the A/C begins working can provide useful information.
The owner’s description of the fault is also important.
In this case, knowing that the Range Rover consistently took around 20 minutes to produce cold air helped with the diagnosis. It gave us a clear symptom to investigate.
Not Every Air Conditioning Fault Needs a Regas
Many vehicle owners associate poor air conditioning performance with low refrigerant. However, there are many other reasons an A/C system may stop working correctly.
A compressor fault is one example.
Adding refrigerant cannot repair a compressor that is failing to operate correctly. This is why CMM Automotive recommends diagnosing the system before deciding what repair is required.
This Range Rover in Padbury is a good example of an intermittent air conditioning fault. The system could eventually produce cold air, but the long delay was not normal.
Testing identified the faulty A/C compressor as the cause of the problem.
If your vehicle’s air conditioning takes a long time to become cold, there may be more happening than low refrigerant. The same applies if the A/C works sometimes but not others.
Mobile Car Air Conditioning Perth services are not always about regassing a system that has stopped blowing cold air. Sometimes the problem is electrical, as we recently discovered with a Mitsubishi in Canning Vale.
The owner contacted CMM Automotive because the air conditioning was working intermittently. Sometimes it worked normally, while at other times it would not operate at all. This made the fault difficult to predict.
Mitsubishi Air Conditioning Not Working
When diagnosing an intermittent air conditioning problem, we should not automatically assume the refrigerant level is low.
A car air conditioning system relies on several electrical and mechanical components working together.A faulty switch, relay, sensor or wiring connection can stop the A/C system from working. Other components may still operate correctly.
During our inspection of this Mitsubishi in Canning Vale, we investigated why the air conditioning was working intermittently.
Mitsubishi air conditioning fault diagnosed by CMM Automotive in Canning Vale.
The dashboard air conditioning switch was developing an intermittent fault.
Sometimes the switch operated correctly and allowed the air conditioning system to function. At other times, it failed to send the required signal. As a result, the A/C system would not operate.
This explained why the owner had experienced such inconsistent behaviour.
Intermittent electrical faults can also make diagnosis more difficult. If the component happens to work while the vehicle is being inspected, the problem can easily appear to have disappeared.
That is why understanding the customer’s description of when and how the problem occurs can provide valuable information during car air conditioning fault diagnosis.
Not Every A/C Problem Needs a Regas
This Mitsubishi is also a good example of why an air conditioning system should be properly diagnosed before automatically adding refrigerant.
A regas would not have repaired the faulty dashboard switch.
The system needed the electrical control problem identified so the actual cause could be addressed.
At CMM Automotive, our Mobile Car Air Conditioning Perth service focuses on finding the reason an A/C system is not operating correctly before recommending repairs.
Depending on the symptoms, this can involve checking refrigerant levels and pressures, looking for leaks, measuring vent temperatures and inspecting the operation of electrical and mechanical components.
Intermittent Car Air Conditioning Problems
If your car’s air conditioning works one day but not the next, there are several possible causes.
Electrical switches and relays can develop worn internal contacts. Wiring connections can also become intermittent, while sensors and control components may occasionally provide incorrect signals.
Some faults may also appear after components become hot and then disappear again once the vehicle cools down.
For this reason, an intermittent A/C problem should not automatically be treated as a refrigerant issue.
Mobile Car Air Conditioning Service in Perth
Having the vehicle inspected while the fault is occurring can make intermittent problems easier to diagnose.
In the case of this Mitsubishi in Canning Vale, diagnosing the faulty dashboard air conditioning switch identified why the system would sometimes work and sometimes refuse to operate.
If your vehicle’s air conditioning is blowing warm air, operating intermittently or has stopped working completely, CMM Automotive can inspect the system and determine what is causing the problem.
Correct diagnosis can help avoid replacing unnecessary components or paying for an A/C regas that will not repair the actual fault.
A used vehicle inspection Perth service can uncover problems that aren’t immediately obvious when looking at a second-hand car. CMM Automotive recently inspected a 2005 Mazda in North Welshpool and found numerous mechanical, maintenance and body concerns.
The inspection identified a leaking radiator, oil leaks, cracked tyres and engine noise. Our road test also revealed rear wheel-bearing noise and a steering wheel that sat noticeably to the left.
Interior and Maintenance Checks
We started our inspection inside the Mazda and found several issues.
The cigarette lighter did not operate, and the carpet near the driver’s seat had become dislodged. The vehicle also had no spare tyre.
We couldn’t lock the driver’s door due to a problem with the door lock.
The air conditioning did not blow cold air. We couldn’t test the heater during the inspection.
Another important finding came from the vehicle’s service sticker. It indicated that the Mazda was approximately 12,000 kilometres overdue for its scheduled service.
Regular servicing plays an important role in maintaining an older vehicle. A significantly overdue service should form part of the buyer’s overall assessment of the car.
2005 Mazda undergoing a used vehicle inspection in North Welshpool.
Modified Pedals and Wiring
We also noticed modifications to the vehicle’s pedals.
In the rear of the vehicle, we found stray wiring and several stains.
Whenever an inspection identifies non-standard modifications or additional wiring, a buyer may want to establish why the previous owner made those changes.
We also noticed that someone had blocked off part of the intake hose arrangement.
These findings don’t automatically tell us why someone made the modifications. However, recording them gives the potential buyer the opportunity to investigate further.
Radiator Leak and Engine Oil Leaks
Our engine bay checks revealed several important mechanical concerns.
The radiator was leaking and required attention.
Cooling system leaks deserve prompt investigation because a loss of coolant can eventually cause the engine to overheat.
We also found oil leakage around the rear of the engine and gearbox area.
Oil leaks can vary significantly in repair cost depending on their source. A pre purchase vehicle inspection can identify visible leakage and give the buyer an opportunity to investigate repair costs before purchasing the car.
Lifter Noise on Startup
We heard lifter noise from the engine when starting the Mazda.
Engine noises deserve attention during any used vehicle inspection Perth service. Unusual noises can have several causes, so buyers should avoid assuming the extent of the problem without further diagnosis.
In this case, the overdue service history shown on the sticker made the startup engine noise another important item for the potential buyer to consider.
Cracked and Split Rear Tyres
Our steering, brake and suspension inspection found significant deterioration in the rear tyres.
The tyres had several cracks and splits.
Tyre cracking can develop as rubber ages and deteriorates. Cracks or splits deserve particular attention because tyres play a critical role in braking, steering and vehicle stability.
We encountered another limitation during the brake inspection.
The owner did not have the correct wheel nut tool, so we couldn’t remove the wheels to complete our normal brake inspection.
Looking through the wheels from the outside, we estimated approximately 50% brake material remaining. However, wheel removal would allow a more complete assessment.
Recording inspection limitations like this is important. A buyer should know when circumstances prevent an inspector from completing part of the normal inspection process.
Multiple Areas of Body Damage
The Mazda also had several cosmetic and body concerns.
We found panel damage around both the left-hand and right-hand front sections of the vehicle.
The vehicle had panels in several different colours, while the bumper also showed damage. We found additional panel damage around the rear bumper.
The driver’s door lock did not operate, which matched the locking problem we identified during the interior checks.
Body condition doesn’t necessarily indicate the mechanical condition of a vehicle. However, signs of previous repairs, mismatched colours and panel damage should form part of a buyer’s overall assessment.
Road Test Found Rear Wheel-Bearing Noise
The road test revealed further concerns.
We heard wheel-bearing noise coming from the rear of the vehicle.
Wheel bearings allow the wheels to rotate smoothly. As a bearing deteriorates, it can produce humming, rumbling or other noises that change with vehicle speed.
We also noticed that the steering wheel sat towards the left rather than remaining centred while driving.
A steering wheel that sits off-centre may justify further checks of the wheel alignment, tyres and steering or suspension components.
These findings demonstrate why a road test forms an important part of a used car inspection. Some mechanical problems become much easier to identify when the vehicle is moving.
A Pre Purchase Inspection Can Reveal the Bigger Picture
This 2005 Mazda inspection in North Welshpool uncovered concerns throughout several areas of the vehicle.
Important findings included a leaking radiator, oil leakage from the rear engine and gearbox area, lifter noise on startup, cracked and split tyres and rear wheel-bearing noise.
The service sticker also indicated that the vehicle was approximately 12,000 kilometres overdue for servicing.
We documented body damage, electrical problems, modifications and several other maintenance concerns.
CMM Automotive provides professional used vehicle inspection Perth services to help buyers understand the condition of a second-hand vehicle before making their final purchasing decision.
Knowing about potential repairs before buying gives you the opportunity to consider those costs when deciding whether the vehicle represents good value.
Frequently Asked Questions
Why does service history matter when buying a used vehicle?
Service history can help a buyer understand how regularly the previous owner maintained the vehicle. Large gaps between services may justify additional mechanical checks.
Can a pre purchase inspection find oil and coolant leaks?
Yes. An inspection can identify visible signs of oil, coolant and other fluid leaks around the engine bay and underneath the vehicle.
Why is a road test important when inspecting a used car?
A road test can reveal wheel-bearing noise, steering problems, vibrations and other concerns that may not appear while the vehicle remains stationary.
A vehicle inspection Perth service can uncover mechanical and safety concerns before a buyer commits to purchasing a used vehicle. CMM Automotive recently inspected a 2005 Kia Carnival in Mount Claremont and found several items requiring attention.
Our inspection identified worn front and rear brakes, badly split fan belts, cooling system concerns and a noisy inner CV joint. The road test also showed that the Kia pulled to the left while driving.
2005 Kia Carnival inspected by CMM Automotive in Mount Claremont.
Interior Checks Found Several Problems
We started our inspection inside the Kia Carnival.
The heater did not operate, and the rear interior light was also not working. The vehicle also needed a new rear wiper blade.
We noticed interference or noise through the radio that appeared to come from the vehicle’s aerial.
These items may not represent major mechanical problems individually. However, documenting them gives the potential buyer a more complete picture of the vehicle’s overall condition.
Engine Bay Inspection Found Split Fan Belts
Our engine bay inspection uncovered several concerns.
The battery tested in average condition. More importantly, the fan belts showed significant splitting and needed attention.
Badly cracked or split belts can eventually fail. Depending on which belt fails, the driver may lose the operation of important engine accessories and become stranded.
We also found a minor accumulation of power steering oil around the base of the power steering reservoir.
The vehicle’s air conditioning did not blow cold air during our checks.
Cooling System Required Attention
The cooling system also produced some findings that deserved further investigation.
The radiator overflow bottle was full, while the radiator cap showed signs of leakage.
A leaking radiator cap can prevent the cooling system from maintaining the correct pressure. Cooling system problems can potentially lead to overheating, so buyers should take signs of coolant leakage seriously.
A pre purchase vehicle inspection gives a buyer the opportunity to identify concerns like these before completing the purchase.
Front and Rear Brakes Were Worn Out
Brake condition was one of the most important findings during this vehicle inspection Perth service.
Our inspection found that the front brakes were worn out. The rear brakes had also reached the end of their usable life.
This means the vehicle required brake repairs.
Brake repairs represent an additional cost that a potential buyer needs to consider. More importantly, brakes play a critical role in vehicle safety and require prompt attention when they reach this condition.
Noisy Inner CV Joint
We also found noise from the driver’s-side inner CV joint.
CV joints form part of the vehicle’s driveline and allow power to travel through the drive shafts while accommodating suspension and steering movement.
Noise from this area can indicate wear that requires further attention.
Finding the problem during a used car inspection Perth service gives the potential buyer a chance to investigate repair costs before agreeing to purchase the vehicle.
Body and Lighting Checks
Our exterior inspection found a minor paint touch-up on the left-hand rear section of the bumper.
We also found that the right-hand brake light did not operate.
Working brake lights are important because they alert following drivers when the vehicle slows down. The faulty light requires attention.
Kia Carnival Pulled to the Left
Our road test provided another important finding.
The Kia Carnival pulled towards the left while driving.
Several issues can cause a vehicle to pull to one side. Possible causes include wheel alignment, tyre condition, suspension components or braking problems.
Rather than assuming the cause, we recorded the symptom so the buyer could arrange further investigation if required.
This demonstrates why a road test adds value to a pre purchase car inspection. Some problems become much easier to identify once the vehicle moves under normal driving conditions.
Know What You’re Buying Before Paying
This 2005 Kia Carnival inspection in Mount Claremont identified several areas that a prospective buyer should consider.
The most important findings included worn-out front and rear brakes, badly split fan belts, a leaking radiator cap and noise from the driver’s-side inner CV joint. We also found several smaller electrical, cooling system and maintenance issues.
Our road test then revealed that the vehicle pulled to the left.
CMM Automotive provides professional vehicle inspection Perth services to help used car buyers understand a vehicle’s condition before making their purchasing decision.
A thorough inspection can help identify upcoming repairs, maintenance requirements and potential safety concerns before you hand over your money.
Frequently Asked Questions
Why should I have the brakes checked before buying a used car?
Brake repairs can represent a significant additional expense. Checking them before purchase also helps identify components that may require immediate attention.
Are cracked fan belts a problem?
Yes. Cracks and splits indicate deterioration. A badly deteriorated belt can eventually fail and may leave the vehicle unable to operate normally.
Why is a road test important during a vehicle inspection?
A road test can reveal pulling, vibrations, driveline noises and other problems that may not appear during a stationary inspection.
A pre purchase car inspection Perth service can reveal mechanical problems even when a used vehicle appears to be in very good condition. CMM Automotive recently inspected a Honda Accord in Crawley and found several issues that a potential buyer should know about.
The interior presented very well and showed no obvious faults. However, our mechanical checks and road test identified an oil leak, poor battery condition, worn tyres, clutch shudder and a noisy CV joint.
Honda Accord Interior in Very Good Condition
We started our inspection inside the Honda Accord.
The interior presented in very good condition, and we found no faults to record. A clean and well-maintained interior can certainly make a positive first impression when looking at a used vehicle.
However, interior condition doesn’t always reflect the mechanical condition underneath.
That is why a thorough pre purchase car inspection Perth service should include the engine bay, tyres, brakes, suspension, body and a road test where possible.
Poor Battery and Rocker Cover Oil Leak
Our engine bay inspection identified two areas requiring attention.
The battery tested poorly and may require replacement. A weak battery can eventually cause slow cranking or starting problems, particularly as it continues to deteriorate.
We also found an engine oil leak around the rocker cover gasket.
Rocker cover gasket leaks can allow engine oil to travel down the outside of the engine. The buyer should consider this repair when assessing the vehicle’s condition and likely maintenance costs.
Finding an oil leak before buying also gives the purchaser an opportunity to discuss the problem with the seller.
Honda Accord undergoing a pre purchase car inspection in Crawley.
Tyres and Wheel Condition
We then inspected the steering, brakes, suspension, wheels and tyres.
Several scuff marks were visible on the front rims. We also found minor kerb damage on the rear rims.
More importantly, the Honda required two replacement tyres.
Tyres represent an immediate additional expense when buying a used car. Checking their condition during a used car inspectioncan help a buyer understand what the vehicle may need shortly after purchase.
Body Damage and Missing Spare Tyre
Our exterior inspection found damage to the left-hand front guard.
We also discovered that the spare tyre was missing.
A missing spare tyre may seem like a relatively minor issue, but it is something a buyer should know about before purchasing the vehicle. Replacing missing equipment adds another potential cost after the sale.
Recording body damage also helps the buyer assess the vehicle as a whole rather than concentrating only on its mechanical condition.
Road Test Found Clutch Shudder and CV Joint Noise
The road test revealed two of the most significant findings from this Honda Accord inspection.
We noticed a minor clutch shudder while driving the vehicle. Clutch shudder can have several possible causes, so the buyer should consider further investigation if the symptoms become more noticeable.
We also heard noise from the left-hand CV joint.
A worn CV joint can produce clicking or knocking noises, particularly while turning or accelerating. Finding this type of problem during a road test gives the buyer valuable information before completing the purchase.
This is one reason CMM Automotive includes a road test when conditions allow. A stationary inspection alone cannot always reveal how a vehicle behaves once it is moving.
A Good Interior Doesn’t Tell the Whole Story
This Honda Accord in Crawley presented with a very good interior and no interior faults to record.
However, our pre purchase car inspection Perth service uncovered several other concerns. These included a poor battery, rocker cover gasket oil leak, two tyres requiring replacement, body damage, a missing spare tyre, minor clutch shudder and noise from the left-hand CV joint.
None of these findings automatically determines whether someone should buy the vehicle.
Instead, an inspection gives the buyer more information. They can then consider the vehicle’s condition, possible repair costs and asking price before making their decision.
Can a car look good but still have mechanical problems?
Yes. A clean interior and exterior do not necessarily indicate good mechanical condition. Engine, drivetrain, suspension and other problems may only become apparent during a detailed inspection and road test.
Why does CMM Automotive road test a vehicle?
A road test can reveal problems such as clutch shudder, CV joint noise, steering issues, vibrations and other faults that may not appear while the vehicle remains stationary.
Should I inspect a used car before paying for it?
A pre purchase inspection can provide valuable information about the vehicle’s current condition and help you consider possible repair and maintenance costs before completing the purchase.
A used car inspection Perth service can give buyers a much clearer picture of an older vehicle before they commit to the purchase. CMM Automotive recently inspected a 2004 Mazda Tribute in Wembley and found several maintenance, tyre, suspension and engine concerns.
Older vehicles can still represent good value, but their condition can vary considerably. This Mazda Tribute is a good example of why checking more than the exterior appearance is important before buying.
Interior Checks on the Mazda Tribute
We began the inspection inside the vehicle and found some staining on the rear carpet.
The handbrake had excessive travel and was sitting high when applied.We recommend checking the handbrake to determine whether it needs adjustment or further brake repairs.”
The rear windscreen wiper also required replacement.
None of these items alone determines whether someone should purchase a vehicle. However, recording smaller maintenance issues helps provide a more complete assessment of its overall condition.
2004 Mazda Tribute inspected by CMM Automotive in Wembley.
Battery, Cooling System and Engine Oil Leaks
Moving to the engine bay revealed several additional concerns.
The battery tested poorly, and the battery terminals were dirty. A weak battery can eventually cause starting problems and may require replacement.
We also found the vehicle’s cooling system was low on water. A low coolant level deserves further investigation because the cause should be established rather than simply topping up the system.
Oil leakage was also visible around the front of the engine.
Engine oil leaks are particularly important to identify during a pre purchase vehicle inspection because repair costs can vary considerably depending on the source and severity of the leak.
Suspension and Brake Condition
Our steering, brake and suspension checks found split rubber components around the front sway bars.
At the rear, there was minor leakage from the shock absorbers. The shock bushes were also split.
Worn suspension components can affect handling, stability, ride quality and tyre wear, particularly as a vehicle gets older.
The front brakes had approximately 50% remaining, while the rear brakes were also estimated at around 50%.
After checking the vehicle, we determined that all four tyres required replacement.
The condition of the tyres was also noticeable during the road test because they produced considerable road noise.
Tyres are an important part of any pre purchase inspection. They are also an expense that a buyer should consider when working out the true cost of purchasing a used vehicle.
Buying a car and immediately discovering that it needs four tyres can add a significant expense to the purchase.
Body and Exterior Problems
Several exterior issues were also recorded during our inspection.
The left-hand front park light globe was blown, while the number plate light on the left-hand side was not operating.
The headlight lenses had become cloudy, and we found scratches on several body panels.
Some clips were missing around the bonnet and left front guard area. We also found damage to the passenger-side bumper bar, which was broken.
These findings were documented so the potential buyer could consider both mechanical and cosmetic repairs before making a purchasing decision.
Noisy Tyres Affected the Road Test
The road test produced another important observation.
Tyre noise was extremely noticeable while driving the Mazda Tribute. In fact, the tyres were noisy enough to make it difficult to hear whether other less obvious noises were present.
This is important when assessing a used vehicle.
Excessive tyre noise can sometimes mask noises from wheel bearings, suspension components or the driveline. Once new tyres are fitted, another road test may be worthwhile if there are concerns about additional noises.
Know the Condition Before You Buy
This 2004 Mazda Tribute inspection in Wembley identified several items that a prospective buyer should take into consideration.
The vehicle required four tyres and had a poorly testing battery, dirty battery terminals, low cooling system level, engine oil leakage, worn suspension components and several exterior defects.
A professional used car inspection Perth service gives buyers independent information about a vehicle’s condition before they make their final decision.
CMM Automotive provides mobile pre purchase inspections across Perth, allowing buyers to have a vehicle inspected at its location before completing the purchase.
Frequently Asked Questions
Is it worth inspecting an older used car?
Yes. An inspection can be particularly valuable on an older vehicle because wear, maintenance requirements and previous repairs can accumulate over time.
Can noisy tyres hide other vehicle noises?
Yes. Excessive tyre noise can make it more difficult to identify quieter noises from other components during a road test.
Does a pre purchase inspection check the tyres and brakes?
Yes. Tyre condition and brake condition are important parts of assessing the overall condition and likely upcoming maintenance costs of a used vehicle.
A pre purchase vehicle inspection can uncover problems that may not be obvious when you first look at a used vehicle. CMM Automotive recently inspected a 2007 Chrysler Crossfire in Craigieburn, where we found several issues that a potential buyer should consider before purchasing the vehicle.
While the Chrysler Crossfire presented reasonably at first glance, our inspection identified concerns with the tyres, steering, engine and general maintenance condition.
The passenger-side interior light was very dull, and some of the windscreen washer jets appeared to be blocked. We also found no water in the windscreen washer reservoir.
We were unable to locate the vehicle’s logbook during the inspection. A missing logbook does not necessarily mean that a vehicle has not been maintained. However, service records can provide valuable information about previous maintenance and repairs.
The trip meter also could not be set during our road test.
2007 Chrysler Crossfire undergoing a pre purchase vehicle inspection.
Engine Bay Inspection Found an Oil Leak
Our inspection of the engine bay identified several items requiring attention.
The battery tested low, while the condition of the engine coolant was only average. These findings may indicate that some general maintenance will be required.
More importantly, we found an engine oil leak around the rocker cover at the top of the engine.
Oil leaks can range from relatively straightforward repairs to more significant problems. Identifying the location of the leak before buying the vehicle gives the potential buyer an opportunity to investigate likely repair costs.
Tyres and Steering Required Attention
The steering, suspension, brakes and tyres revealed some of the most important findings during this vehicle inspection.
The steering damper was leaking oil and requires attention. We also noticed graze marks around the control arms.
Both front tyres were bald and required replacement.
The rear tyres were also in poor condition. They were lumpy and had several cuts and slashes through the tyre tread. Tyre condition is particularly important because it directly affects the vehicle’s handling, braking and overall safety.
We estimated the front brakes had approximately 50% remaining.
There were also scuff marks on the wheel rims.
Exterior and Body Inspection
During our inspection of the Chrysler’s body and exterior components, we found cloudy headlight lenses.
Cloudy headlights can reduce the amount of useful light reaching the road at night. Depending on their condition, the lenses may require restoration or replacement.
We also found that the Chrysler Crossfire did not have a spare tyre.
Road Test Revealed Poor Ride Quality
A road test is an important part of a pre purchase car inspection because some problems only become apparent once the vehicle is moving.
During the Chrysler Crossfire road test, we noticed driveline-type noise that appeared to be coming from the tyres.
The vehicle’s overall ride and comfort were also poor due to the condition of the tyres. Considering the bald front tyres and damaged, lumpy rear tyres found during the physical inspection, tyre replacement would be an important priority.
Why a Pre Purchase Inspection Matters
A used vehicle can look impressive while still having mechanical and maintenance issues underneath.
This 2007 Chrysler Crossfire inspection identified several areas requiring attention, including bald front tyres, damaged rear tyres, a leaking steering damper, an engine oil leak, a low-testing battery and average coolant condition.
These findings give a potential buyer much more information before deciding whether to purchase the vehicle or negotiate the price.
CMM Automotive provides comprehensive pre purchase vehicle inspections to help buyers understand the condition of a used vehicle before handing over their money.
Frequently Asked Questions
Should I get a used car inspected before buying it?
Yes. A professional inspection can identify mechanical, safety and maintenance problems that may not be obvious during a short test drive.
Why is tyre condition important during a vehicle inspection?
Tyres affect braking, steering, handling and ride quality. Uneven wear, lumps, cuts or bald tread can also indicate that immediate replacement or further investigation is required.
Can a vehicle inspection help negotiate the purchase price?
Potentially. If an inspection identifies repairs or maintenance that will be required, the buyer can take those costs into consideration before agreeing to a final purchase price.
