Observe the following conditions prior to the A/C performance test
1. Provision of a diagnosis system. Safeguard electrical system integrity by
checking the fault memory (no
faults in the fault memor
WARNING: Only persons in possession of a professional certificate
of competence for the maintenance and repair of heating and air conditioning
systems are authorized to carry out repair work on the
Work on the refrigerant circuit may only be carried out by experts!
Avoid all contact with liquid or gaseous R 134a. Wear safety goggles and
gloves when working on the
refrigerant circuit.
Follow S
REMOVING AND INSTALLING/REPLACING PRESSURE SWITCH FOR NATURAL
VACUUM LEAK DETECTION (NVLD)
Necessary preliminary work:
Remove CARBON CANISTER.
Remove DUST FILTER.
Unlock and disconnect snap fastener (1).
Unfasten screws (2).
Pull off pressure switch (3) in direction of arrow.
Installation not
Instruments - Special Tools
VADAPTER
Adapter MW
Note: (Adapter 15/20-pin) only for oil service - Replaced by 62 1 140, July
94
Storage Location
I 106
ADAPTER
Adapter MW
Note: For instrument panel
Storage Location
Y2
SI number
02 03 89 (038)
Fig. 1: Identifying Adapter (621300)
Instruments - Tighte