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:
REPLACING SELECTOR SHAFT SEAL (GA6HP26Z)
Special tools required:
24 5 361
24 5 362
24 5 364
24 5 366
IMPORTANT: After completion of work, check transmission fluid level.
Use only the approved transmission fluid.
Failure to comply with this requirement will result in serious damage to the
aut
REPLACING ALTERNATOR DRIVE BELT (N62/N62TU)
Special tools required:
11 3 340
Necessary preliminary tasks:
Remove fan clutch with fan impeller (E65/66).
NOTE: If the drive belt is to be reused:
Mark direction of travel and reinstall drive belt in same direction of travel.
Pretension belt tensio