BMW X5: Ignition Wires, Spark
REPLACING ALL SPARK PLUGS (N42, N40, N46, N45, N52, N52K, N51)
Special tools required:
Necessary preliminary tasks:
- Switch off ignition
- Remove ignition coils.
Unscrew spark plugs with special tool 12 1 171.
Installation:
Tighten down spark plugs with special tool 12 1 171and special tool 12 1 200
(torque limiter).
Without special tool 12 1 200, observe tightening torque.
Tightening torque 12 12 1AZ0.

Fig. 1: Identifying Special Tool (12 1 171) And (12 1 172)
READ NEXT:
NOTES ON CHECKING IGNITION SYSTEM
Troubleshooting -> Fault in fuel injection system
-> Spark plug faults
-> Ignition coil faults
-> Further fault patterns with evaluation
-> Additional
IMPORTANT: Read and comply with notes on protection against
electrostatic damage (ESD
protection).
IMPORTANT: Aluminum-magnesium materials.
No steel screws/bolts may be used due to the threat of ele
SEE MORE:
Second row of seats
General information
The seats of the second row of seats can be adjusted
forward and backward including the backrest
tilt.
The backrest tilt for the center section is adjusted
together with the left rear seat backrest.
Safety information
Warning
There is a risk of jamming when m
Engaging selector lever
positions
General information
To prevent the vehicle from creeping after you
select a gear position, maintain pressure on the
brake pedal until you are ready to start.
Functional requirements
Only when the drive-ready state is switched on
and the brake pedal is depressed is i