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:
Special tools required:
34 1 280.
Necessary preliminary tasks:
Remove front wheels.
Remove and clean brake pads.
After completing work, read and comply with notes on braking in new brake
discs / brake pads.
Check minimum brake disc thickness:
Position special tool 34 1 280 at three measu
Principle
With the Cruise Control, a set speed can be adjusted
using the buttons on the steering wheel.
The system maintains the set speed. The system
accelerates and brakes automatically as
needed.
General information
The system can be activated starting at
20 mph/30 km/h.
Depending on the vehicl