IMPORTANT: Risk of damage!
Extreme cleanliness must be ensured in the connection area of the vent
lines
during removal and installation. Even the smallest of dirt particles can cause
leakage in the a
Special tools required:
13 5 020
37 1 151
37 1 152
WARNING: Danger of poisoning if oil is ingested/absorbed through the
skin!
Risk of injury if oil comes into contact with eyes and skin!
IMPORT
WARNING: Danger of injury!
Drain the air spring system before carrying out any work on the air supply
unit, air pipes and air springs! Danger of injury if this instruction is not
complied with!
Risk o
Necessary preliminary tasks:
Remove glass slide/tilt sunroof.
Remove glass slide/tilt sunroof lid at front.
Remove glass slide/tilt sunroof lid at rear.
Remove front drip molding.
Remove drive for slide/tilt sunroof actuation.
Overview of glass lid mechanism:
Fig. 4: Identifying Glass Lid
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 transformed from a liquid
into a gaseous state. This boiling point, however, is not constant. It is