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:
General information
Regularly remove foreign objects such as leaves
in the area below the windshield when the hood
is raised.
Wash your vehicle frequently, particularly in winter.
Intense contamination and road salt can
damage the vehicle.
Steam cleaner and high pressure
cleaner
Safety information
Special tools required:
00 5 010
32 1 060
33 1 308
33 5 130
33 5 140
Necessary preliminary tasks:
Remove rear differential.
Withdraw shaft seal with special tools 00 5 010 and 32 1 060 / 33 1 308.
Fig. 27: Identifying Special Tools (00 5 010 ), (32 1 060) And (33 1 308)
Installing new sha