5 Series E34 525td (M51) TOUR
64 52 ...
Instructions for opening and replacing parts in refrigerant circuit
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 (refer to Electronic Parts Catalogue)
•
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
I)
Opening refrigerant circuit
without part replacement, as preliminary work to further work
(e.g. engine removal):
Work sequence:
•
Draw off A/C system, then determine drawn-off refrigerant oil quantity
•
Carry out main work
•
Replace removed refrigerant oil with new refrigerant oil
•
Evacuate and fill A/C system
II)
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
RA Instructions for opening and replacing parts in refrigerant circuit
BMW AG - TIS
23.01.2013 08:22
Issue status (12/2007) Valid only until next DVD is issued
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