12 51 200 Replacing wiring harness section for injectors (M57T2)

IMPORTANT: Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC DAMAGE (ESD PROTECTION) .

Necessary preliminary tasks

Read out fault memory of DDE control unit; if necessary, work through test schedules
Switch off ignition
Remove INTAKE AIR MANIFOLD

E60

Unlock cover (1) with slide (3).

Unfasten screws (2).

Remove electronics box cover (1).

Unlock and disconnect plug on control unit.

Fig 1: Identifying Electronics Box Cover With Screws

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E83

Unfasten screws.

Remove cover (1).

Unlock and disconnect plug on control unit.

Fig 2: Identifying Cover

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E90

Unlock fasteners (1) from below and slide upwards approx. 10 mm.

Unlock slide (2) in direction of arrow.

Remove cover (3).

Unlock and disconnect plug on control unit.

Fig 3: Unlocking Slide

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Pull out lock (1) in direction of arrow.

Press out plug (2) in direction of arrow.

Fig 4: Pressing Out Plug

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Unlock plug (1) and remove.

Unfasten screws.

Remove cable duct (2) with wiring harness.

Fig 5: Identifying Cable Duct And Plug

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NOTE: Now clear the fault memory.