12 51 001 Replacing wiring harness section for engine (M62): Notes

WARNING: This page is about a different car, the 2003 BMW X5, 2002 BMW X5, 2001 BMW X5, and 2000 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

Interrogate fault memory of DME control unit.

Switch off ignition.

Follow instructions for disconnecting and connecting battery, refer to General Information MG 12.

Disconnect battery negative lead from battery.

WARNING: Scalding hazard!

Only perform these tasks on an engine that has cooled down.

Remove reinforcement plate. Refer to FRONT AXLE SUPPORT .

Release screws and remove underbody panelling (1).

Fig 1: Releasing Screws And Remove Underbody Panelling

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Disconnect plug connection (1) on starter motor.

NOTE: The plug connection is located above the front axle on the right. For purposes of clarity, the right front wheel is shown removed.

Fig 2: Disconnecting Plug Connection On Starter Motor

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Detach plug (1) from oil level sensor.

Unclip cable from cable holder (2) and lay upwards.

Fig 3: Detaching Plug From Oil Level Sensor

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Disconnect plug connections (1) on left and right monitor sensors.

Unclip cables from holders on transmission housing.

Fig 4: Disconnecting Plug Connections On Left And Right Monitor Sensors

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Disconnect plug connections (1) on left and right oxygen sensors.

Fig 5: Disconnecting Plug Connections On Left And Right Oxygen Sensors

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Unlock and remove cable connector (1).

Detach plug (2) from pulse generator for crankshaft.

Fig 6: Detaching Plug From Pulse Generator For Crankshaft

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Unlock and remove cable connector (1).

Fig 7: Removing Cable Connector

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Unclip cable from cable holders (1) on transmission housing.

Fig 8: Removing Cable From Cable Holders On Transmission Housing

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Remove heater bulkhead, refer to 51 71 080 .

Unlock cable holders (2).

Remove cables (1) from cable holders (2).

Release screws (3).

Remove holder (4).

Fig 9: Removing Cables From Cable Holders

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Release cable tie (1).

Fig 10: Releasing Cable Tie

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Disconnect all plugs in control unit box.

Part of this work is described in the work step "Replacing control unit", refer to 12 14 550 REPLACING CONTROL UNIT (DIGITAL MOTOR ELECTRONICS) (M62, M54) .

Release nut.

Remove grounding cables from ground support point.

Detach profile seal (1) towards top.