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Home >> BMW >> 2004 >> 545i Automatic >> Repair and Diagnosis >> Electrical >> Starter >> Starting Systems - Overview >> Starting Systems >> Starter Drives >> Gear Reduction Drive
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Gear Reduction Drive

In their design and function, Gear Reduction Drives are much the same as conventional drive starters. The main difference in the gear reduction drive starter is a planetary gear set added between the field frame and the drive end shield. This design allows for the use of smaller and lighter starters.

Fig 1: Identifying Gear Reduction Drive
G03390228Courtesy of BMW OF NORTH AMERICA, INC.