64 52 523 Replacing compressor for air conditioner
Follow instructions for compressor replacement without fail. See 64 52... Instructions For Compressor Replacement .
Necessary preliminary tasks:
All models:
- Draw off refrigerant from A/C system. See 64 50 009 Drawing Off, Evacuating And Filling A/C System (R 134a) .
- Remove front underbody protection.
M54 only:
- Release coolant expansion tank, disconnect plug connection and place coolant expansion tank to one side.
Version with Dynamic Drive:
Do not release pressure lines on active stabilizer.
Press lock (1) on distributor (2) and detach vent line (3) in direction of arrow.
Installation:
Make sure vent line (3) is correctly seated in distributor (2).
Lower stabilizer on front axle.
Version with Dynamic Drive:
Release nuts (1) and (2).
Remove retaining fixture (3).
Installation:
Make sure retaining fixture (3) is correctly seated.
All models:
Unfasten plug connection (1) and disconnect.
Loosen screws (2).
Installation:
Tightening torque, see 64 52 1AZ in AIR CONDITIONING & HEATING - TIGHTENING TORQUES article.
Detach refrigerant lines (3) in direction of arrow.
Installation:
Replace sealing rings.
All models:
Secure A/C compressor (2) against falling out.
Release screws (1).
Feed out A/C compressor (2) in direction of arrow.