64 52 520 Removing and installing/replacing complete A/C compressor (N12)
WARNING: This page is about a different variant/trim than selected.
WARNING:
Danger of injury!
Avoid contact with refrigerant and refrigerant oil.
Follow safety instructions for handling refrigerant R 134a.
Follow safety instructions for handling refrigerant oil.
Scalding hazard!
Work on the exhaust system may only be carried out when it has cooled down.
Avoid contact with refrigerant and refrigerant oil.
Follow safety instructions for handling refrigerant R 134a.
Follow safety instructions for handling refrigerant oil.
Scalding hazard!
Work on the exhaust system may only be carried out when it has cooled down.
IMPORTANT:
Risk of damage!
Restart engine only when A/C system has been correctly filled.
Read and comply with notes on replacing compressor.
If A/C system is opened for more than 24 hours:
Replace desiccant insert for A/C system.
Restart engine only when A/C system has been correctly filled.
Read and comply with notes on replacing compressor.
If A/C system is opened for more than 24 hours:
Replace desiccant insert for A/C system.
Necessary preliminary tasks:
- Remove upper exhaust manifold heat shield
- Remove A/C compressor drive belt. See 11 28 010 REPLACING ALTERNATOR DRIVE BELT (N12) .
IMPORTANT:
Secure compressor against falling out.
Disconnect plug connection (1).
Release nuts (2) and disconnect refrigerant lines.
Tightening torque 64 52 2AZ .
Replace all sealing rings and moisten with refrigerant oil.
Release bolts (3) and feed out compressor.
Tightening torque 64 52 1Z .
Installation:
- If the A/C system has been opened for more than 24 hours, the desiccant insert must be replaced
- Evacuate and fill A/C system