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Home >> BMW >> 2013 >> M3 2D Convertible, Standard Trans >> Repair and Diagnosis (Single Page) >> General Information >> OEM General Information >> Functional Description -- M3 Convertible >> Steering System - Functional Description >> Electromechanical Power Steering >> EPS unit
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EPS unit

The EPS unit consists of the following components:

The EPS control unit is part of the electromechanical power steering. The EPS control unit is connected with 2 plug connections to the vehicle power system. The steering momentum sensor is connected via another plug connection at the EPS control unit. A number of characteristic curves for power assistance, active steering wheel return as well as damping characteristics are stored in the EPS control unit. The values calculated from the input variables added to each characteristic curve result in the necessary steering power assistance.

The rear fuse carrier (luggage compartment) supplies the servo unit with terminal 30.

Fig 1: Identifying EPS Control Unit Components
G09871302Courtesy of BMW OF NORTH AMERICA, INC.
Item Explanation
1 Servomotor
2 EPS control unit
3 Plug connection to the steering momentum sensor
4 Plug connection to the vehicle electrical system