Car air conditioning is a necessity in Perth, not a luxury. With summer temperatures regularly exceeding 40°C, a functioning AC system is a basic safety requirement — especially for families with children or elderly passengers. Here's what Perth drivers need to know about AC servicing.
Signs Your Car's AC Needs Servicing
- Air isn't as cold as it used to be — most common sign of low refrigerant
- System takes longer to cool the cabin after starting
- Unusual noise when AC is turned on
- Water dripping inside the cabin (not outside) — blocked drain line
- Musty or mouldy smell from the vents — cabin filter or evaporator issue
- AC light flashing — system fault code requiring diagnosis
What Is an AC Re-Gas?
An AC re-gas (refrigerant recharge) is the most common AC service — the mechanic removes the old refrigerant, checks for leaks, and refills the system to the manufacturer's specified pressure. Most vehicles lose a small amount of refrigerant naturally over time. A re-gas typically restores full cooling performance in systems without underlying faults.
How Much Does AC Servicing Cost in Perth?
- Re-gas only: $120–$180
- Re-gas with leak test: $150–$220
- Full system service including cabin filter: $180–$280
- Compressor replacement: $600–$1,500+ depending on vehicle
How Often Should You Service Your Car's AC?
Most manufacturers recommend an AC service every 2 years or whenever you notice reduced performance. In Perth's climate, where AC systems run heavily for 6+ months per year, annual checks are sensible. Replacing the cabin filter (which filters the air entering the cabin) should be done every 12–15,000km.
Don't Run a Low-Refrigerant System
Running your AC when refrigerant is low damages the compressor — the most expensive component in the system. A $150 re-gas preventing a $1,200 compressor replacement is straightforward value arithmetic.
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