Notes
WARNING: Electric fuel pump starts up automatically when door is
opened!
Disconnect BATTERY NEGATIVE TERMINAL (risk of fire due to shortcircuiting
on removal).
Observe warning on cylinder head
Notes
WARNING: Clamp off BATTERY NEGATIVE TERMINAL (risk of fire due to
shortcircuiting
on removal).
Electric fuel pump starts up automatically when door is opened!
Carry out installation work on fu
WARNING: Observe warning on cylinder head cover.
Disconnect NEGATIVE BATTERY TERMINAL (risk of fire due to short
circuit on removal).
Electric fuel pump starts up automatically when door is opened!
C
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