BMW X5: Engine Electrical System
BMW X5 (G05) 2019-2025 Service & Repair Manual / Engine / Engine Electrical System
- Troubleshooting
- Ignition Wires, Spark
- Ignition Coil
- Electronic Switching On Or Control Unit
- Alternator With Drive
- Regulator
- Starter With Mounting
- Starter Lead
- Engine Wiring Loom
- Oil Pressure, Oil Tempe
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Troubleshooting
CONTENTS OF ENGINE ELECTRICAL SYSTEM GENERAL
General Information -> Working on ignition system.
-> Removing and installing electronic control units.
-> Welding work (overload protection of co
Ignition Wires, Spark
REPLACING ALL SPARK PLUGS (N42, N40, N46, N45, N52, N52K, N51)
Special tools required:
12 1 171
12 1 200.
Necessary preliminary tasks:
Switch off ignition
Remove ignition coils.
Unscrew spark
Ignition Coil
NOTES ON CHECKING IGNITION SYSTEM
Troubleshooting -> Fault in fuel injection system
-> Spark plug faults
-> Ignition coil faults
-> Further fault patterns with evaluation
-> Additional
SEE MORE:
Emissions Management
The N54 and N52KP meet ULEV II requirements for 2007. There are not many
changes to the emission
systems on these engines. The N54 engine has 2 underbody catalysts in addition
to the "near engine" catalysts
already in use from the N52.
The N51 engine, however, is a SULEV II compliant engine which
Crankcase
As far as the physical appearance and dimensions, the crankcase on the N54 is
the same as the N52. The main
change is in the materials, the N54 uses an all aluminum alloy crankcase. There
is also cast iron cylinder liners
similar to the previous M54 engine.
The reason for using the all aluminum c
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