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
To avoid locking the vehicle key in the vehicle,
do not place the vehicle key in the cargo area.
Depending on the vehicle equipment and country
version, it is possible to specify whether the
tailgate can be unlocked with the vehicle key and
how the vehicle doors will respond to
The following illustration is a schematic representation of all the body
variants.
Fig. 20: Identifying Materials In Outer Shell
All components not listed in the table below are composed of established
sheet steel qualities.
COMPONENTS MATERIALS SPECIFICATION
VEHICLE IDENTIFICATION NUMBER, GENE