12 41 020 Removing and installing/replacing starter motor (N54)

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IMPORTANT: Aluminum screws/bolts must be replaced each time they are released.

Aluminum screws/bolts are permitted with and without color coding (blue).

For reliable identification:

Jointing torque and angle of rotation must be observed without fail (risk of damage).

Necessary preliminary tasks

Switch off ignition
Disconnect BATTERY NEGATIVE LEAD
Remove INTAKE AIR MANIFOLD

Unlock plug (1) and remove.

Release nuts (2) and disconnect battery positive leads.

Tightening torque 12 42 2AZ .

Release screws (3).

Installation:

Replace aluminum screws.

Tightening torque 12 41 1AZ .

Remove starter motor (4).

Fig 1: Identifying Plug, Nuts And Screws

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Installation

Check starter pinion and ring gear for damage. Replace starter if necessary.

Assemble engine.