BMW X5 Owners & Service Manuals

BMW X5: Troubleshooting

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 Contents Of Engine Electrical System General

General Information Working on ignition system Removing and installing electronic control units Welding work (overload protection of control units) Disconnecting and connecting battery Disconnec

 Instructions For Removing And Installing Electronic Control Units

IMPORTANT: Disconnecting the vehicle battery will cancel the fault memories of control units. Consequently, before disconnecting the car's battery, always interrogate the fault memories. Invest

 Ignition Wires, Spark Plugs

FIRING ORDER Fig. 3: Firing Order (V8) REPLACING ALL SPARK PLUGS (N62, N62TU) Special tools required: 12 1 171 12 1 172 Necessary preliminary tasks: Switch off ignition Remove all IGNITION CO

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 Stationary Wheel Balancing

Special tools required: 36 1 010 36 1 020 Necessary preliminary tasks: Remove wheel IMPORTANT: Use only BMW-approved balance weights. Remove any fitted balancing weights, stones in tread pattern and larger contaminants. Check tire pressure, check tire for condition, damage, flat spots (out-

 Piezo Element

The movement of the nozzle needle in the injector is generated no longer by a solenoid coil but rather by a piezo-element. A piezo-element is an electromechanical converter, i.e. it consists of a ceramic material which converts electrical energy directly into mechanical energy (force/travel).

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