64 52... Instructions for opening and replacing parts in refrigerant circuit
WARNING: This page does not describe the selected car, but rather 23 other vehicles, including the 2013 BMW 328xi, 2013 BMW 328i, 2012 BMW 335xi, 2012 BMW 328xi, and 2012 BMW 328i. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
- Avoid contact with refrigerant and refrigerant oil
- Follow safety instructions for handling R134a refrigerant
- Follow safety instructions for handling refrigerant oil
CAUTION:
- Always use new O-rings each time A/C connections are opened
- Moisten O-rings with refrigerant oil prior to fitting
- Seal all parts to be returned at openings to prevent ingress of moisture or foreign bodies
- Opening refrigerant circuit without part replacement, as preliminary work to further work
(e.g. engine removal):
Work sequence:
- Part replacement and part replacement on account of insidious leak
(minor leak, e.g. hairline crack)
Work sequence:
- Draw off A/C system, then determine drawn-off refrigerant oil quantity
- Carry out part replacement
- Replace removed refrigerant oil with new refrigerant oil
- Additionally
replenish new refrigerant oil in accordance with replaced parts:
- Compressor: refer to Notes on replacing compressor
- Evaporator: 10 ml
- Condenser: 10 ml
- Desiccant insert / desiccant bottle: 30 ml
- Each replaced refrigerant line: 10 ml
- Condenser with integrated dryer: 30 ml
- Safety pressure switch and seals: no additional refrigerant oil
- Evacuate and fill A/C system
- Part replacement on account of sudden leak
(major leak, e.g. pipe break due to accident)
Work sequence:
- Draw off A/C system, then determine drawn-off refrigerant oil quantity
- Carry out part replacement
- Replace removed refrigerant oil with new refrigerant oil
- Additionally
replenish 25 ml new refrigerant oil and
new refrigerant oil in accordance with replaced parts:
- Compressor: refer to Notes on replacing compressor
- Evaporator: 10 ml
- Condenser: 10 ml
- Desiccant insert / desiccant bottle: 30 ml
- Each replaced refrigerant line: 10 ml
- Condenser with integrated dryer: 30 ml
- Safety pressure switch and seals: no additional refrigerant oil
- Evacuate and fill A/C system