Air Conditioning Components; A/C System Components Diagram - BMW 1999-2005 M3 Service Manual

Heating and Air Conditioning
1 of 11
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Air Conditioning
Components
This section covers removal and
installation of air conditioning
refrigerant components. A/C testing
and diagnosis, refrigerant discharge,
evacuation and recharge are not
covered here.
The A/C condenser, compressor,
receiver dryer, pressure sensor,
refrigerant lines and expansion valve
are either installed in the engine
compartment or accessible from the
engine compartment.
The A/C evaporator is located in the
IHKA housing. Removal of the IHKA
housing involves dashboard removal.
Before starting work, disconnect the
battery negative (-) cable in the trunk.
Be sure to read the battery
disconnection cautions on page viii and
the airbag warnings in
System (SRS).
Note:
The air conditioning system is filled
with R-134a refrigerant.
A/C system
components
1
2
3
4
640-6
721 Airbag
- High pressure
line
- Sealing O-ring
(always replace)
- Receiver-dryer
- Condenser
2/25/2009 11:18 PM