The owner booked the Holden in because the car air conditioning was no longer blowing cold air. During our mobile car air conditioning service in Perth, we recovered the remaining refrigerant and carried out professional car air conditioning leak detection using nitrogen pressure testing.”

When a Holden’s air conditioning system stops blowing cold air, many people assume it simply needs a regas. However, if the system has a refrigerant leak, a regas will only provide a temporary solution. At CMM Automotive, we professionally diagnose every Holden car air conditioning leak before recommending any repairs. This helps our customers avoid unnecessary costs and repeated refrigerant loss.As part of our diagnostic procedure, we safely recovered the remaining refrigerant. We then pressure tested the air conditioning system using dry nitrogen. Nitrogen pressure testing is one of the safest and most effective ways to identify leaks. It allows us to test the system under pressure without releasing refrigerant into the atmosphere.

During testing, the system failed to hold pressure

During testing, the system failed to hold pressure, confirming a significant refrigerant leak. Further inspection identified the leak inside the dashboard area, indicating that the evaporator core was leaking.

The evaporator is located inside the heater and air conditioning housing behind the dashboard. Because of its location, this type of repair generally requires substantial disassembly of the dashboard before the faulty evaporator can be replaced.

Although evaporator leaks are less visible than leaks from hoses or condensers, they are a relatively common cause of poor air conditioning performance as vehicles become older. Symptoms may include:

• Air conditioning no longer blowing cold air.
• Gradual loss of cooling performance.
• Refrigerant requiring frequent regassing.
• Oily residue around the evaporator drain.
• Musty smells from the air conditioning vents.

At CMM Automotive, our approach is always to identify the cause of the refrigerant loss before recommending repairs. Simply adding more refrigerant without repairing the leak will usually result in the system losing its cooling performance again.

Professional leak diagnosis helps us identify the correct repair the first time. It also helps avoid unnecessary replacement of components that are still operating correctly..

If your Holden’s air conditioning is no longer cooling properly, CMM Automotive provides professional mobile car air conditioning leak detection, nitrogen pressure testing and system diagnosis throughout Perth.. We explain our findings clearly before recommending the most appropriate repair. This allows you to make an informed decision about your vehicle.

Whether the fault is a leaking evaporator, condenser, hose, compressor or another air conditioning component, CMM Automotive focuses on accurate diagnosis first. We then recommend quality repairs to restore reliable cooling performance.

This picture is the Holden from today with the leaking air conditioner