Servotronic Components

The proportional valve for electronic volumetric flow control (EVV valve) and the Servotronic valve are directly controlled by the ICM regardless of whether the Servotronic or Integrated Active Steering is fitted.

Fig 1: Identifying Servotronic Components

Courtesy of BMW OF NORTH AMERICA, INC.

SERVOTRONIC COMPONENTS REFERENCE CHART

Index	Explanation
1	Hydraulic pump
2	Electronic volumetric flow control valve (EVV valve)
3	Servotronic valve
4	Hydraulic power steering control valve body

Fig 2: Input/Output Signal Diagram - Control Of Steering By ICM

Courtesy of BMW OF NORTH AMERICA, INC.

INDEX REFERENCE CHART

Index	Explanation
1	Steering column switch cluster (SZL)
2	Wheel speed sensor
3	Dynamic stability control (DSC)
4	Electronic volumetric flow control (EVV) valve
5	Servotronic valve
6	Integrated Chassis Management (ICM)
7	"Steering control" function