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
IMPORTANT: Read and comply with notes on protection against electrostatic
damage (ESD
PROTECTION).
IMPORTANT: Use of supplied gloves is mandatory
Carry out installation in a dust-free workshop area only.
To avoid damage, do not touch or dirty the display field.
Necessary preliminary work:
Remove