FixVault

12 41 041 Replacing solenoid switch

Turn off ignition  .

Remove starter motor  .

Release nut (1).

Remove cable lug (2).

Fig 1: Identifying Cable Lug And Nut
G04740414Courtesy 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: see 4AZ in 12 41 STARTER MOTOR WITH MOUNTING .

Release screws (1).

Fig 2: Identifying Starter Motor Screws
G04740415Courtesy 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, Pin And Spring
G04740416Courtesy of BMW OF NORTH AMERICA, INC.