64 53 670 Replacing Line From Compressor to Double Pipe

64 53 670 Replacing Line From Compressor To Double Pipe

Special tools required:







WARNING:
Danger of injury.
Refrigerant circuit is under high pressure.
Follow safety instructions for handling R 134a (tetrafluorethane) refrigerant.
Avoid contact with refrigerant and refrigerant fluid.
Follow safety instructions for handling refrigerant fluid.







IMPORTANT:
Risk of damage.
Restart engine only when air conditioning system has been correctly filled.
Follow notes for opening and replacing parts in refrigerant circuit.
If air conditioning system is opened for more than 24 hours:
Replace desiccant insert for A/C system







Necessary preliminary work:
- Drain off air conditioning system







Disconnect plug connection (1).
Release screw (2) and remove refrigerant line (3).

Installation note:
Replace sealing rings.
Use special tool 00 9 030 to mount sealing rings without damaging them.
Tightening torque 64 53 5AZ.







Remove foam wedge (1).







Release screw (1) and remove refrigerant line (2).

Installation note:
Replace sealing rings.
Use special tool 00 9 030 to install sealing rings without damaging them.
Tightening torque 64 53 3AZ.







Replacement:
Modify safety pressure switch.







After installation:
- Evacuate and fill A/C system