Cool down passenger compartment

WARNING: This page is about a different car, the 2010 BMW 135i, 2009 BMW 135i, and 2008 BMW 135i. However, it is still accessible from the selected car via links, so may be relevant.

Turn on air conditioning compressor with "A/C button" at a vehicle interior temperature of 45 °C (measured at the head restraint).

On vehicles with MAX-AC button:

Activation of MAX-AC (= maximum cooling power)
On vehicles without MAX-AC button:
Set maximum cooling power by means of following steps:
- Setting minimum temperature
- Blower setting maximum
- Stratification maximum cold (4 blue bars)
- Only ventilation open
- Close remaining flaps (air outlet only from center fresh air grille, left and right)

After 5 minutes measure both ventilation temperatures with a thermometer at the same time (fresh air grille center, left and right). The measured temperature must be ≤ 16° C and the difference between right and left may not be greater than 2° C.

If one or both temperature specifications is not reached DRAIN OFF HEATING AND AIR CONDITIONING SYSTEM . Measure amount of refrigerant drawn off.

If drawn-off quantity does not correspond to specified fill quantity: supplement refrigerant and repeat test. See A/C SYSTEM, REFRIGERANT AMOUNTS .

If capacity is correct, continue troubleshooting by pressure measurement.