BMW 7 Series: Ignition Wires, Spark Plugs
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 extension with min. 8º bend.
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Fig. 14: Unscrewing Spark Plugs With Special Tool (12 1 220)
Attach new spark plug (1) to special tool 12 1 230.
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Fig. 15: Attaching Spark Plug To Special Tool (12 1 230)
Screw spark plug with special tool 12 1 230 hand-tight into cylinder head plug thread as far as it will go.
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Fig. 16: Screwing Spark Plug With Special Tool (12 1 230)
Installation note: Tighten spark plugs with torque wrench, special tool 12 1 220 and extension with min. 8º bend.
Observe tightening torque.
Tightening torque 12 12 2AZ.
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Fig. 17: Tightening Spark Plugs With Torque Wrench, Special Tool (12 1 220)
READ NEXT:
Ignition Coil
NOTES ON CHECKING IGNITION SYSTEM
Troubleshooting
Fault in fuel injection system
Spark plug faults
Ignition coil faults
Further fault patterns with evaluation
Additional fault notes for troubles
Coding Control Module (DME/DDE)
Switch off ignition.
Connect MoDiC or DIS/GT1 Tester.
Switch on ignition.
Select "Coding" program.
For subsequent procedure, follow instructions in MoDiC or DIS/GT1 Tester.
Carry out adjustment of
SEE MORE:
Integrated Universal Remote Control- Reprogramming individual
buttons
Switch on standby state.
Press and hold the interior mirror button to be
programmed.
As soon as the LED on the interior mirror
flashes orange after approx. 20 seconds, release
the button.
Hold the hand-held transmitter for the system
to be used approx. 1 to 12 in/2.5 to 30 cm
away fr
Wash Functions
When the wiper switch on the steering column stalk is pulled, the washer
fluid pump is first switched on,
followed by the windscreen wiper. The washer fluid pump remains switched on for
as long as the wiper switch
on the steering column stalk is pulled.
The signal is routed from the steering colu
