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:
Principle
The air flow directions can be adjusted individually
for direct or indirect ventilation.
Setting the ventilation
General information
Open the air vents and position them to ensure
effective climate control.
Direct ventilation
The air flow is directed towards the passengers.
The air flow h
CHECKING ENGINE OIL PRESSURE
Special tools required:
11 4 050
13 3 061
13 3 063
13 6 051
13 6 054
NOTE: To check the engine oil pressure, the oil pressure switch must be
removed and
the special tools installed and connected.
NOTE: A small amount of oil will emerge when the oil pressure swit