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. See 12 1 200 TORQUE
LIMITER 30 NM.
Tightening torque 12 12 1AZ0.
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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 CRANKSHAFT (N62/N62TU)
REFERENCE CHART
Operation
Remove engine.
Remove cylinder head (cylinder bank 1 to 4).
Remove cylinder head (cylinder bank 5 to 8).
Remove hub for vibration damper.
Removing lower timing case cover.
Removing oil pan.
Remove oil pump.
Removing piston.
Remove
Necessary preliminary tasks:
Remove glass slide/tilt sunroof.
Remove glass slide/tilt sunroof lid at front.
Remove glass slide/tilt sunroof lid at rear.
Remove front drip molding.
Remove drive for slide/tilt sunroof actuation.
Overview of glass lid mechanism:
Fig. 4: Identifying Glass Lid