FAQS

Do you fix car heating issues?

YES! We specialize in both Heating and Air Conditioning Diagnosis and repairs.

Is it safe to keep driving with A/C or heater problems?

Some A/C and heating issues are minor, but others can signal bigger problems—especially in the cooling system where overheating can quickly damage internal engine components. If your temperature gauge starts climbing or you see warning lights, stop driving and have it checked to avoid costly damage like warped cylinder heads or blown head gaskets.

With A/C, low refrigerant isn’t just “less cold air”—it can reduce lubrication in the system and force the compressor to work harder, which can lead to premature compressor failure. That’s why we diagnose first, confirm the cause (like leaks or control faults), and fix it properly rather than just topping it up.

Why is my car A/C blowing warm air?

Most commonly it’s low refrigerant (often from a leak), a pressure/sensor issue, or a compressor/fan fault. We’ll diagnose it first so you don’t waste money on guesses.

Can I just get an A/C regas?

A regas helps ONLY if the system is low. If it’s low because there’s a leak or another underlying fault, it’ll fix the problem briefly and then go warm again—so we start with a proper diagnosis (pressure testing and system checks) to find the cause and fix it properly the first time.

Why is my heater blowing cold air?

Heater issues are often caused by low coolant, a thermostat not regulating temperature correctly, or a problem with the heater controls. Because multiple faults can cause the same symptoms, we run a proper diagnosis of the heating circuit to pinpoint the exact cause—so you’re fixing the issue, not just guessing.

Where are you located?

We are conveniently located at 65 Gordon Road, Greenfields, Mandurah WA 6210 – opposite Frederick Irwin Anglican School and next to Toolmart and Tyre Right. Easy access from all Peel Region suburbs including Halls Head, Falcon, Dawesville, and Erskine.

How long do most car air conditioning repairs or services take at your Mandurah workshop?

To ensure the highest quality of service, we recommend allocating approximately half a day to a full day for most air conditioning repairs and diagnostics. This allows our experienced technicians sufficient time to conduct a thorough diagnosis using specialist equipment and complete any necessary repairs with precision. We keep you updated throughout, though complex issues may require additional time.

How often should I service my car air conditioning?

We recommend servicing your car air conditioning every 1–2 years, depending on your vehicle's make, model, and usage. Regular servicing is especially important in Western Australia's harsh heat and coastal conditions around Mandurah and the Peel Region to prevent costly breakdowns and maintain efficient cooling.

What is the best way to contact WestCoast Auto Air Conditioning?

The best number to call is 9581 7794. We're ready to help with bookings, quotes, or advice for both car heating and air conditioning repairs, AC regas, or diagnostics in Mandurah.

How much refrigerant does a car air conditioning system lose naturally each year?

A healthy vehicle air conditioning system typically loses 1–2% of refrigerant per year through natural permeation in seals and hoses. If your A/C is not cooling effectively in Mandurah's extreme heat, low refrigerant or a leak may be the cause – schedule an inspection at our Gordon Road workshop.

How does a car's air conditioning system work?

Your vehicle's air conditioning system operates as a sealed, closed-loop circuit that circulates refrigerant (not consumed like fuel) through components including the compressor, condenser, expansion valve, and evaporator. Unlike a barbecue where gas is burned, refrigerant is recycled continuously via hoses and pipes to remove heat and moisture from the cabin air.

Do I need to bring my vehicle to the workshop for air conditioning hose or pipe repairs?

Yes, we strongly recommend bringing your vehicle to our Mandurah workshop for custom hose or pipe manufacturing and repairs. This ensures perfect fitment, correct routing to prevent future damage, and accurate on-vehicle pressure testing for lasting results.

AU 068456 | MRB 12779