Removing the control unit holder

WARNING: Working on 12 V electrical system.
Risk of short circuits! Risk of fire!

Make sure that there is no charger connected to the jump start terminal in the engine compartment.
Detach battery ground lead from battery.
For auxiliary batteries: Detach battery minus cables from all auxiliary batteries.

NOTE: RISK OF DAMAGE
Damage to battery terminal, the safety battery terminal or the intelligent battery sensor (IBS).
Damaged battery terminals can lead to malfunctions or vehicle electrical system faults.

Detach battery terminal from battery pole by carefully shifting to and fro. Do not pry off using a tool.

Preliminary work

Refer to DEACTIVATING THE 48 V ELECTRICAL SYSTEM .
Refer to DISCONNECTING ALL BATTERY GROUND LEADS .
Refer to REMOVING THE ACOUSTIC COVER .
Refer to REMOVING THE DME CONTROL UNIT .
Refer to REMOVING THE INTEGRATED POWER SUPPLY MODULE (PDM) .

Unlock the lock (1).
Feed out the wiring harness section (2) and set it aside.

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Loosen clamp (1).

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Unlock the lock (arrow).
Disconnect the cable holder (1) upwards from the control unit holder (2).

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Loosen clamp (1).

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Loosen clamp (1).

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Unlock the lock (1).
Feed out the cable bracket (2) upwards and set It aside.

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Loosen the holder (1).

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Loosen screws (1).
Feed out the control unit holder (2).

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Release the clamps (arrows).
Feed out and remote the control unit holder (1).

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