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:
Principle
The integrated Universal Remote Control in the
interior mirror can operate up to 3 functions of
remote-controlled systems such as garage door
drives, barriers, or lighting systems.
General information
The Integrated Universal Remote Control replaces
up to 3 different hand-held transmitters
Special tools required:
00 9 317.
52 0 050.
Necessary preliminary tasks:
Remove front seat.
Remove rear panel on front seat backrest.
Detach plug connection (1) by twisting from backrest frame.
Disconnect plug-in connection.
Fig. 72: Detaching Plug Connection
Release all retainers (1) on