12 41 041 Replacing Solenoid Switch

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2010 BMW 335xi, 2010 BMW 335i, 2009 BMW 335xi, 2009 BMW 335i, and 2008 BMW 335xi. However, it is still accessible from the selected car via links, so may be relevant.

Turn off ignition.

Remove starter motor.

Release nut (1).

Remove cable lug (2).

Fig 1: Identifying Cable Lug & Nut

G04740414

Courtesy of BMW OF NORTH AMERICA, INC.

CAUTION:

Do not turn cable lug (2) while tightening down-risk of short circuit to starter motor housing.

Tightening torque, 12 41 4AZ, see ENGINE ELECTRICAL SYSTEM -- TORQUE SPECIFICATIONS -- TWIN TURBO .

Release screws (1).

Fig 2: Identifying Starter Motor Circuit Screws

G04740415

Courtesy of BMW OF NORTH AMERICA, INC.

Remove solenoid switch (1) and spring (2).

Unhook pin (3).

Installation:

Check pin (3) for wear and apply grease.

Fig 3: Identifying Solenoid Switch, Spring & Unhook Pin

G04740416

Courtesy of BMW OF NORTH AMERICA, INC.