64 53 515 Replacing desiccant insert for A/C system
WARNING: This page is about a different variant/trim than selected.
NOTE:
A desiccant insert that is in a correctly functioning, sealed heating and air conditioning system does not have to be changed at regular service-inspection intervals. However, the dryer flask or desiccant insert must absolutely be replaced in the event of:
contamination of the refrigerant with swarf (e.g. when the compressor is clamped).
With depressurized and/or completely drained refrigerant circuit.
With a refrigerant circuit, which was closed using special tool 32 1 270 but remains open for more than 24 hours.
WARNING:
Risk of injury!
Refrigerant circuit is under high pressure!
Follow instructions for handling R 134a refrigerant.
Avoid contact with refrigerant and refrigerant oil.
Follow safety instructions for handling refrigerant oil.
Refrigerant circuit is under high pressure!
Follow instructions for handling R 134a refrigerant.
Avoid contact with refrigerant and refrigerant oil.
Follow safety instructions for handling refrigerant oil.
IMPORTANT:
Risk of damage!
Restart engine only when A/C system has been correctly filled.
Restart engine only when A/C system has been correctly filled.
Necessary preliminary tasks:
- Remove condenser for A/C system
Remove protective cap (1).
Remove circlip (1) and pull out desiccant insert (2).
Installation:
Replace all sealing rings and moisten with refrigerant oil.
After installation: