A car's air conditioning is a sealed system, so in theory the refrigerant is not "used up". In practice, though, a small amount escapes every year through the hoses, seals and joints. So after a few years the air conditioning cools less and less, even if nothing is actually broken.
How often does it need checking?
There is no single interval for every car. A good rule is to have the air conditioning checked every 1–2 years, ideally in spring, before the hot weather arrives. During the check the pressures are measured, the system is checked for leaks and, if needed, it is vacuumed and refilled with the exact amount the manufacturer specifies.
Signs the air conditioning needs regassing or checking
- The air comes out cool but not cold, or the cabin takes a long time to cool down.
- The compressor cuts in and out often, or you hear a noise when you switch the A/C on.
- There is a bad smell from the vents (usually it needs cleaning and a new cabin filter).
- The windows mist up and the A/C does not clear them as it used to.
R134a or R1234yf: which refrigerant does my car take?
Older cars use R134a refrigerant. In the European Union, all new cars from 2017 onwards must use a refrigerant with a low environmental impact, and in practice that is R1234yf. The two cannot be mixed and need different equipment. The type is usually shown on a sticker under the bonnet.
Don't forget the cabin filter
The cabin filter (pollen filter) cleans the air coming into the car. When it is dirty, it reduces the airflow and causes smells. It is usually changed once a year or at the service, and it is one of the cheapest things that make a big difference.
Car air conditioning regas in Chania
At our shop at 156 Anagnostou Gogoni, we check, regas and repair car air conditioning, and we stock cabin filters for all makes. Give us a call to book a time, especially before summer, when we are very busy.
These tips are general. Every car has its own manufacturer specifications, so ask us about yours.