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 VOLTAGE REGULATOR
Necessary preliminary tasks:
Switch off ignition
Disconnect battery negative lead.
Notes on removing and installing electronic control units.
Remove alternator
Bosch:
Release protective caps (1).
Fig. 40: Inserting Screwdriver Between Cover And Threaded Pin
Bosch:
CAUTION: To avoid damage when handling optical fibers, comply with the
following
points:
The minimum permitted bending radius is 25 mm
Do not subject optical fibers to compressive and tensile load
Protect optical fibers against the effects of heat > or =85ºC
(e.g.
during welding work, dr