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12 41 041 Replacing solenoid switch

Turn off ignition.

Remove starter motor.

Release nut (1).

Remove cable lug (2).

Fig 1: Cable Lug
G04725689Courtesy 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 12 41 STARTER MOTOR WITH MOUNTING

Release screws (1).

Fig 2: Starter Screws
G04725690Courtesy 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: Solenoid Switch, Pin And Spring
G04725691Courtesy of BMW OF NORTH AMERICA, INC.