12 41 020 Removing and installing/replacing starter

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2010 BMW 535xi, 2010 BMW 535i, 2009 BMW 535xi, 2009 BMW 535i, and 2008 BMW 535xi. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT:

Aluminium-magnesium materials.

No steel screws/bolts may be used due to the threat of electrochemical corrosion.

A magnesium crankcase requires aluminium screws/bolts exclusively.

Aluminium screws/bolts must be replaced each time they are released.

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

For reliable identification:

Aluminium screws/bolts are not magnetic .

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.

Unfasten nut.

Tightening torque 12 41 3AZ .

Remove battery positive lead (2).

Fig 1: Identifying Plug And Battery Positive Lead With Nut

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Installation:

Replace aluminium screws.

Tightening torque 12 41 1AZ .

Release screws (2).

Fig 2: Identifying Starter Motor And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Replace aluminium screws.

Tightening torque 12 41 2AZ .

Remove starter motor (3).

Installation:

Check starter pinion and ring gear for damage, replace starter motor 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.