Replacing the engagement solenoid switch (S55 engine)

Preliminary work needed:

Slacken nut (1).

Remove cable head (2).

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IMPORTANT: Do not twist cable head (2) when tightening, risk of short circuit to starter motor housing.

Tightening torque 12 41 1AZ .

Unscrew the screws (1).

Courtesy of BMW OF NORTH AMERICA, INC.

Courtesy of BMW OF NORTH AMERICA, INC.

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

Detach the bolt (3).

Installation note:

Check the bolt (3) for wear and grease the bolt.