BMW X5 Owners & Service Manuals

BMW X5: Engine Electrical System

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 Engine Electrical System (6-Cyl.)

 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 p

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 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 fault notes for troubleshooting. Oscillograms -> Normal oscillogram -> Oscillograms of ignitio

 Steering Assistant

Principle The Steering Assistant helps keep the vehicle in the lane. For this purpose, the system executes supporting steering movements, for instance when driving in a curve. General information Depending on the speed, the system orients itself according to the lane markings or vehicles in front.

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