Necessary preliminary tasks
Check wheel bearings
Lift vehicle.
Check wheel with special tool 36 1 030 (measuring fixture) for lateral runout.
Fig. 1: Checking Wheel Lateral Runout Using Special T
Necessary preliminary work
Remove WHEEL
Mount wheel in balancing machine.
To avoid retooling errors, fit the wheel on the balancing machine in the same
way as it is also fitted on the car
(valve
Central locking system
The Car Access System outputs signals for the central locking system
function. The footwell module also receives the signals via the K-CAN2 and uses
them for visual feedback of the central locking system.
Antitheft alarm system
The footwell module enables the anti-theft alar
REPLACING ALL SPARK PLUGS (N54, N63, N74)
Necessary preliminary tasks
Switch off ignition.
Remove IGNITION COILS.
IMPORTANT: Wear safety goggles.
Oil and dirt particles may get into your eyes!
Clean spark plug slot with compressed air.
Unscrew spark plugs with special tool 12 1 220 and extensi