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
Some iDrive functions can be operated using the
touchpad on the Controller.
Selecting functions
1. "CAR".
2. "Settings".
3. "General settings".
4. "Touchpad".
5. Select the desired setting.
Entering letters and numbers
Enter characters as they are displayed on the
Control
Principle
The emergency braking function of PDC initiates
an emergency braking in case of acute risk of
collision.
General information
Due to system limits, a collision cannot be prevented
under all circumstances.
The function is available below walking speed
when driving in reverse or rolling back