FREON
The refrigerant Freon R12 is used in most BMW automobiles with an air
conditioner up through the 1992
model year. It has a boiling point of - 29.8ºC (sea level), at which the
refrigerant is t
OIL USED IN FREON-CHARGED SYSTEMS
A mineral-based oil is used. The oil level in the compressor must be checked
before filling an air conditioner
with refrigerant. It can be checked only if the system
A musty odor may be detected in the vehicle, particularly when the air
conditioner is first switched on.
This is caused by microorganisms growing on the evaporator from moisture
condensation.
A di
Special tools required:
11 4 481
Necessary preliminary tasks:
Remove cylinder head cover
Remove intermediate lever
If necessary, move eccentric shaft (1) on twin surface to minimum lift (2).
Fig. 218: Eccentric Shaft
NOTE: All bearing caps (1 and 2) of eccentric shaft are marked with
number