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 system assists the driver when lane
changes are necessary to reach a navigation
destination.
General information
The system uses the sensors of the steering and
lane control assistant.
Safety information
Warning
The system cannot serve as a substitute for the
driver's personal judgment
General information
The engine oil consumption is dependent on
your driving style and driving conditions.
Therefore, regularly check the engine oil level after
refueling by taking a detailed measurement.
The engine oil consumption can increase in the
following situations, for instance:
Sporty dr