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:
REMOVING AND INSTALLING HOOD/BONNET
WARNING: Danger of injury!
Support engine hood in fully opened position with suitable apparatus.
IMPORTANT: Removal of the hood/bonnet must be carried out with the
assistance of a
second person.
NOTE: Carry over schematic representation to the relevant vehicle ty
2007 NG6 Engine
Model: All with NG6-cylinder from 2007
Production: from 9/2006
NG6 ENGINE
Previously in 2005, BMW introduced the beginning of a new generation of six
cylinder engines with the N52.
Now, for the 2007 model year, BMW has 3 new variations of the NG6 engine family.
The first of the ne