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)
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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
For certain applications, such as apps, the data
exchange between smartphone and vehicle occurs
via WLAN.
Functional requirements
Standby state is switched on.
Compatible device with activated WLAN interface.
Activate WLAN in the vehicle
1. "COM".
2. "Mobile devices".
3. Ti
IMPORTANT: Carry out chassis/wheel alignment with DIN load only:
If the technical preconditions for alignment with ride height
input are not
in place
If, in spite of repairs having been carried out, the car's ride
height between
the left and right sides is still outside the tolerance
If th