64 53 551 Removing and Installing Or Replacing Condenser For A/C System
Risk of injury!
Refrigerant circuit is under high pressure!
Follow safety instructions for handling R134a refrigerant . See 64 50... Instructions For Handling Refrigerant R134a and/or 64 50... Safety Instructions For Handling Refrigerant R134A .
Avoid contact with refrigerant and refrigerant oil.
Follow safety instructions for handling refrigerant oil . Refer to 64 50... Instructions For Handling Refrigerant Oil (For Refrigerant R134a) .
Risk of damage!
Restart engine only when A/C system has been correctly filled.
Follow instructions for opening and replacing parts in refrigerant circuit. Refer to 64 52... Instructions For Opening And Replacing Parts In Refrigerant Circuit .
If A/C system is opened for more than 24 hours:Replace desiccant insert for A/C system . Refer to 64 53 515 Replacing Desiccant Insert For A/C System .
Necessary preliminary tasks:
- Drawing off, evacuating and filling the A/C system are not included in the time value given for this work operation. Refer to 64 50 009 Drawing Off, Evacuating And Filling A/C System (R134A) .
- Remove radiator . Refer to 17 11 000 REMOVING AND INSTALLING RADIATOR (N43, N45, N46, N52, N52K, N53) or 17 11 000 REMOVING AND INSTALLING RADIATOR (N51, S65)
Release screws (1).
Tightening torque, see 64 53 6AZ in 64 53 REFRIGERANT LINES AND EXPANSION VALVE .
Detach refrigerant lines (2) and (3) towards rear from A/C system condenser (4).
Installation:
Replace sealing rings and moisten with suitable refrigerant oil.
Release screw (1).
If necessary, lay refrigerant lines (2) and (3) slightly to one side.
Unlock retaining lug (1) in direction of arrow and pull A/C system condenser (2) towards rear slightly.
Feed out A/C system condenser (1) upwards between vent line (2) and cover (3).
After installation:
- Evacuate and fill A/C system Refer to 64 50 009 Drawing Off, Evacuating And Filling A/C System (R134A) .
- Fill and vent cooling system and check for leaks. Refer to 17 00 039 VENTING COOLING SYSTEM AND CHECKING FOR WATER LEAKS (N52/ N52K/ N51/ N53) .