64 53 515 Replacing Desiccant Insert For A/C System
Risk of injury!
Refrigerant circuit is under high pressure!
Handling R134a refrigerant: see SAFETY INSTRUCTIONS and INSTRUCTIONS FOR HANDLING .
Avoid contact with refrigerant and refrigerant oil.
Handling refrigerant oil: see safety 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 .
If A/C system is opened for more than 24 hours:
Replacing drier insert for A/C system
Necessary preliminary tasks:
- Drain off refrigerant from A/C system. See DRAWING OFF, EVACUATING AND FILLING A/C SYSTEM (R134A) .
- Remove condenser. Refer to REMOVING AND INSTALLING OR REPLACING CONDENSER FOR A/C SYSTEM .
If necessary, pierce sticker over screw plug (1).
Open screw plug (1) and remove drier insert from A/C system condenser (3).
Installation:
Tightening torque: 20 Nm
Replace sealing ring and moisten with refrigerant oil.
After installation:
- Evacuate and fill A/C system. Refer to DRAWING OFF, EVACUATING AND FILLING A/C SYSTEM (R134A) .
- Fill and vent cooling system and check for leaks. See VENTING COOLING SYSTEM AND CHECKING FOR WATER LEAKS .