Necessary preliminary tasks

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 BMW 328xi, 2012 BMW 328i, 2011 BMW 328xi, 2011 BMW 328i, and 2010 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.

Turn off ignition
Disconnect BATTERY NEGATIVE LEAD
Remove INTAKE PLENUM

Unlock plug (1) and remove.

Unfasten nut.

Tightening torque 12 41 3AZ .

Remove battery positive lead (2).

Fig 1: Identifying Plug And Battery Positive Lead

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Release screw (1).

Installation:

Replace aluminium screws.

Tightening torque 12 41 1AZ .

Unfasten screws (2).

Installation:

Replace aluminium screws.

Tightening torque 12 41 2AZ .

Fig 2: Identifying Starter Motor And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Remove starter motor (3).

Installation:

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

N53 Only: In the case of a separate term. 50 lead (with disconnector socket), the term. 50 lead is laid parallel to knock sensor 2 behind the fuel line.