CONTENTS OF ENGINE ELECTRICAL SYSTEM GENERAL
General Information -> Working on ignition system.
-> Removing and installing electronic control units.
-> Welding work (overload protection of co
NOTES ON CHECKING IGNITION SYSTEM
Troubleshooting -> Fault in fuel injection system
-> Spark plug faults
-> Ignition coil faults
-> Further fault patterns with evaluation
-> Additional
FIRING ORDER
Fig. 3: Firing Order (V8)
REPLACING ALL SPARK PLUGS (N62, N62TU)
Special tools required:
12 1 171
12 1 172
Necessary preliminary tasks:
Switch off ignition
Remove all IGNITION COILS.
Unscrew spark plugs with special tool 12 1 171.
Installation:
Tighten down spark plugs with sp
Necessary preliminary tasks:
Remove trim panels for door pillar.
If necessary, remove air vent.
Move front seat upwards.
Release screw (1) on front seat.
Installation:
Replace screw.
Tightening torque.
Feed out belt anchor fitting (2).
Fig. 2: Identifying Seat Belt Bolts
Release screws (2).