General Information
Working on ignition system
Removing and installing electronic control units
Welding work (overload protection of control units)
Disconnecting and connecting battery
Disconnec
IMPORTANT:
Disconnecting the vehicle battery will cancel the fault memories
of control
units. Consequently, before disconnecting the car's battery, always
interrogate the fault memories. Invest
Special tools required:
11 9 470
11 9 473
(cylinder bank 1 to 4)
Necessary preliminary tasks:
Removal of rocker arms is described separately from installation.
Remove servomotor for right eccentric shaft.
Remove ignition coils on cylinder bank 1 to 4.
Remove right cylinder head cover.
Re
REMOVING AND INSTALLING COMPLETE EXHAUST SYSTEM (N52K)
Special tools required:
31 2 220 31 2 220 SUPPORT PLATE
WARNING: Scalding hazard!
Only perform this work after engine has cooled down.
Danger of injury!
Removal of the exhaust system must be carried out with the assistance of a
second person