A/C not blowing cold air

If the air conditioning blows air but not cold air, the system is usually low on refrigerant, or the compressor is not engaging.

AreaComfort
UrgencyLow

Can I keep driving? Safe to drive short-term, but have it checked to avoid failed emissions or worse fuel economy.

Common causes

Low refrigerant

Caused by a leak; A/C systems are sealed and should not need regular top-ups.

Compressor clutch not engaging

Fuse, relay, pressure switch or clutch fault.

Condenser blocked or fan not running

Poor cooling especially at idle.

Blend door fault

Hot air mixing in; often a clicking noise behind the dashboard.

Clogged cabin filter

Weak airflow rather than warm air.

What to check

  1. Check whether the compressor clutch engages when A/C is switched on.
  2. Check the condenser in front of the radiator for debris.
  3. Have the system pressure-checked and leak-tested by a certified technician.
  4. Replace the cabin filter if airflow is weak.

Related OBD2 codes

Repair guides

How to replace the cabin air filter

General guidance only. A qualified technician can confirm the cause; brakes, steering and fuel leaks should be checked professionally if in doubt.