Operation CHARM: Car repair manuals for everyone.

Running-In Regulations For New Compressor




NOTE: Fill the air-conditioning system (fluid) via the high-pressure side from the refrigerant circuit with the engine OFF.


1. If possible, all air outlet nozzles OPEN, circulating air CLOSED.
2. Start the engine and allow idle speed to stabilize (approx. 5 seconds).
3. Set the fan to max. output.
4. Switch on the air-conditioning system A/C switch and allow it to run uninterrupted for at least 2 minutes at 1500 rpm.
5. After 2 minutes uninterrupted compressor operation time, the oil distribution in the air-conditioning system is completed and the compressor can be run up to the max. engine speed.