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Home >> BMW >> 2004 >> X3 30i, Standard >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Engine Electrical System - Repair (M54) >> Starter With Mounting >> 12 41 020 Removing and installing/replacing starter motor

12 41 020 Removing and installing/replacing starter motor

Necessary preliminary tasks: 

NOTE: Remove starter motor from below.

Unscrew nut (1).

Tightening torque 12 41 4AZ .

Disconnect battery positive lead (2) from starter motor.

Fig 1: Disconnecting Battery Positive Lead From Starter Motor
G03310578Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: For purposes of clarity, reinforcement plate is not shown.

Do not remove reinforcement plate.

Release screws (1).

Fig 2: Releasing Screws
G03310579Courtesy of BMW OF NORTH AMERICA, INC.

Tightening torque 12 41 1AZ .

Pull starter motor out of transmission mount and turn in order to facilitate access to control leads on starter motor.

Unscrew nuts (1).

Fig 3: Removing Starter Motor
G03310580Courtesy of BMW OF NORTH AMERICA, INC.

Tightening torque 12 41 4AZ .

Detach control leads (2) from starter motor.

Remove starter motor.

Installation: 

Check starter pinion and starter ring gear for damage.

Fig 4: Checking Starter Pinion And Starter Ring Gear
G03310581Courtesy of BMW OF NORTH AMERICA, INC.