64 53 733 Replacing Double Pipe

64 53 733 Replacing Double Pipe

Special tools required:







WARNING:
Risk of injury.
Refrigerant circuit is under high pressure.
Avoid contact with refrigerant and refrigerant oil.
Read and comply with safety regulations:
- Handling R 134a refrigerant
- Handling refrigerant oil







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







Necessary preliminary tasks:
- Drawing off A/C system (not included in time value of this operation)







Release screw (1).

Installation:
Check that rubber seal is correctly seated.
Tightening torque 64 53 1AZ.







Release screws (1) and remove refrigerant lines.
Tightening torque 64 53 5AZ.
Remove refrigerant line from double pipe holder (2).

Installation:
Replace sealing rings.
Use special tool 00 9 030 to mount sealing rings without damaging them.







After installation:
- Evacuate and fill A/C system