EMF Actuator Unit: Bracket

To attach the EMF actuator unit to the vehicle's structural components, a multi-angled bracket is used. That design allows the EMF actuator unit itself to remain virtually identical in dimensions (to the one on the E70/E71). Adaptation to the geometry of the surrounding components on the different vehicles is achieved by the specific design of the mounting bracket.

The bracket for the EMF actuator unit locates at the top on a boss on the rear suspension subframe. Fixing of the bracket at the bottom differs according to whether the vehicle is fitted with Integrated Active Steering or not. Vehicles with Integrated Active Steering have an actuator for the rear-wheel steering on the rear suspension. The bracket for the EMF actuator then rests on the rear-wheel steering actuator bracket. The two brackets are joined by two bolts.

Fig 1: Identifying EMF Actuator Unit Bracket And HSR Actuator Components

Courtesy of BMW OF NORTH AMERICA, INC.

On vehicles without Integrated Active Steering, the bracket for the EMF actuator unit is attached to the rear suspension subframe by the same two bolts.

Fig 2: Identifying EMF Actuator Unit Bracket Without HSR Actuator Components

Courtesy of BMW OF NORTH AMERICA, INC.

The bracket and the EMF actuator unit itself are also attached to one another by bolts. If replacement is necessary, both the bracket and the EMF actuator unit itself can be ordered as separate parts.