64 52 524 Replacing A/C system compressor (N62)
Follow safety instructions for handling R 134a refrigerant.
Avoid contact with refrigerant and refrigerant oil.
Follow safety instructions for handling refrigerant oil.
Restart engine only when A/C system has been correctly filled.
Read and comply with notes on replacing compressor.
Follow instructions for opening and replacing parts in refrigerant circuit!
If A/C system is opened for more than 24 hours:
Replace drier insert for A/C system
Necessary preliminary tasks:
- Remove front assembly underside protection . See 51 47 490 REMOVING AND INSTALLING / REPLACING FRONT UNDERBODY PROTECTION .
- Remove A/C compressor drive belt . See 11 28 050 REPLACING A/C COMPRESSOR DRIVE BELT WITH BELT TENSIONER (N62/N62TU) .
- Release stabilizer on front axle. See 31 35 000 REMOVING AND INSTALLING/REPLACING FRONT STABILIZER .
Do not kink Bowden cables for engine hood locking.
Release screws (1).
Remove front panel center section (2) in direction of arrow and place to one side.
Release screws (1) and feed out refrigerant lines (2).
Tightening torque 64 53 6AZ, see 64 53 REFRIGERANT LINES AND EXPANSION VALVE
Release screw (1) and disconnect coolant line connection.
Installation:
Replace all sealing rings and moisten with refrigerant oil.
Tightening torque 64 53 6AZ, see 64 53 REFRIGERANT LINES AND EXPANSION VALVE
Release bolt (1) and remove bracket for oil lines (2).
Tightening torque 32 41 17AZ, see 32 41 PUMP AND OIL SUPPLY
Disconnect plug connection (2).
Release screw and nut (3).
Release bolts (4) and feed out compressor (1) downwards with refrigerant lines.
Tightening torque 64 52 3AZ, see 64 52 A/C COMPRESSOR
Adapter sleeves (1) must not be damaged.
Replace damaged adapter sleeves.
After installation:
- Evacuate and fill A/C system
Replacement:
Release screws (1) and remove refrigerant lines.
Installation:
Replace all sealing rings and moisten with refrigerant oil.
Tightening torque 64 52 1AZ, see 64 52 A/C COMPRESSOR