3 Series E90 325xi (N53) SAL
64 52 ...
Instructions for compressor replacement
Important!
Compressors with plastic belt pulleys:
•
Avoid impacts/knocks to plastic belt pulley (caused by
tools, contact with base).
•
Return faulty compressors in their original packaging
only.
Important!
When starting up a new compressor for the first time, it is
absolutely essential to carry out the following breaking-in
procedure:
•
Switch on A/C system
•
Set all air vents in instrument cluster to "OPEN"
•
Start engine and let it stabilize at idle speed
•
Set blower output to min. 75 % of max. blower output
•
Switch on A/C system and run for at least 2 minutes at
idle speed (risk of damage at higher speed!)
When evacuating the air-conditioning system, refrigerant oil is also
extracted and collected in the oil separator of the service station.
After evacuation, the refrigerant must be filtered in the service
station as the oil separator could still contain a liquid refrigerant/oil
mixture. The filtering process gasifies the refrigerant completely
and only the previously bound refrigerant oil remains in the oil
separator. Measure and note down this quantity of refrigerant oil,
refer to Evacuating A/C system.
Transfer the refrigerant oil remaining in the previous compressor
via the filler plug completely into a measuring container.
RA Instructions for compressor replacement
BMW AG - TIS
15.02.2013 06:55
Issue status (12/2007) Valid only until next DVD is issued
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