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:
13 3 010
Necessary preliminary tasks:
Remove left underbody panelling.
Seal off water hoses at fuel pump with special tool 13 3 010
Fig. 54: Identifying Special Tool (13 3 010) On Water Hoses
Recycling
Fuel escapes when fuel lines are detached. Have a suitable collect
General information
The current head restraint position can be stored
using the memory function.
Safety information
Warning
Removal or incorrect adjustment of head restraints
can cause injuries in the head and neck
area. There is a risk of injury.
Before driving, install the removed head
restrain