REPLACING ALL SPARK PLUGS (N42, N40, N46, N45, N52, N52K, N51)
Special tools required:
12 1 171
12 1 200
Necessary preliminary tasks:
Switch off ignition
Remove ignition coils.
Unscrew spark p
SEE MORE:
REPLACING FUEL FILTER (M57T2)
Necessary preliminary tasks:
Switch off ignition
Remove rear assembly underside protection
Recycling:
Catch and dispose of escaping fuel.
Observe country-specific waste-disposal regulations.
Release clamps (1).
Pull off hose.
Pull out retainer (2).
Detach fuel
WARNING: Although R 134a at normal temperature is non-toxic,
non-flammable and
not explosive in air in any mixture ratio, it is still essential to follow
various safety precautions.
The filled refrigerant circuit of the A/C system is subject to gauge
pressure. When carrying out repairs on the
A/C