Car air conditioning and heater parts: how to buy well
Where to start: what exactly is not working
A car’s air conditioning is several units: the compressor, the condenser, the evaporator, the pipes and the receiver-drier. The heating is the heater core and the blower motor. The symptoms differ: if it blows but does not cool, suspect the compressor, a refrigerant leak or a blocked condenser. If it does not blow at all or whistles, the blower motor or its resistor is most often to blame. If the heater does not warm and the coolant in the tank keeps dropping, look at the heater core.
Before buying an expensive compressor, ask the mechanic whether the system was checked for leaks. A new part in a leaking system fails quickly.
How it works on BlaBlaPrice
You describe the part and the car in a request, and sellers of car parts reply in the chat: what exactly they offer, original or aftermarket, the price, the delivery time. The platform shows the best-value offer first, and seller reviews are visible beside each. Sellers see their place among the others, so they often improve their terms. Your phone is hidden, and only the one you choose gets your contacts. More on the how it works page.
What to put in your request
- Which part — compressor, condenser, heater core, blower motor, evaporator or only a gas refill.
- Model and year — for example, Mazda 6 GH, 2010; the difference between generations is big here.
- Engine — size and fuel: the compressor type and mounts depend on it.
- Climate type — manual air conditioning, climate control or a standalone heater.
- Condition — new, used from a breaker or reconditioned.
- Original or aftermarket — or a specific brand, for example Denso.
- Fitting — whether you need installation and a refrigerant refill.
- City, delivery and budget.
Example request: “I need an air conditioning compressor for a Mazda 6 GH, 2010, 2.0 petrol, climate control. New, Denso or a good aftermarket one. I need fitting with a refrigerant refill. Dubai, budget up to AED 700.”
How to compare offers
The same part name does not mean the same part. Compressors have different pulleys, numbers of grooves and pipe positions, so ask for photos and a part number or the VIN. A used compressor not tested on a bench is a lottery: ask whether there is a warranty and how many days you have to check it. For a radiator look at the material and the thickness of the core.
Separately find out whether the price includes a new receiver-drier and oil of the right grade: once the system is opened, the drier is normally replaced. If you need fitting, compare the price together with the labour, not only the part.
Common mistakes
Buying a part by its look without checking the number. Not allowing for the fact that one model has versions with and without air conditioning, and with different climate systems. Taking the cheapest aftermarket compressor of an unknown maker for a part that works under load. Looking at neighbouring units also helps: see the air intake system if the problem is wider, or car parts in general.
