Self Study Program 892403 – Electro-mechanical Power Steering

Self Study Program 892403 – Electro-mechanical Power Steering PDF free online

Electro-mechanical Power Steering with Dual Pinion

The steering system components are:

  • Steering wheel
  • Steering Angle Sensor G85
  • Steering column
  • Steering Torque Sensor G269
  • Steering gear
  • Electro-mechanical Power Steering Motor V187
  • Power Steering Control Module J500

What You Should Know About the Electro-mechanical Power Steering System:

With electro-mechanical power steering, there is no requirement for hydraulic assistance to support the steering. Eliminating hydraulic oil from the steering system helps to protect the environment.

The electro-mechanical power steering system is a dual pinion type. This is characterized by two pinions (steering and drive pinions), which enable the necessary steering force to be transmitted to the steering rack.

To assist the steering, an electric motor is actuated based on input response. The system provides the driver with assistance depending on the driving conditions (servotronic).

The electro-mechanical power steering supports return of the steering wheel back to the center position via the “active return” function. This results in a well-balanced feeling and extremely accurate straight-line stability in every driving situation.

With the straight-line stability function, a force is generated and applied to make it easier for the driver to steer the vehicle in a straight line when the vehicle is being affected constantly by side winds or driven up or down hills.


  • Introduction
    • Electro-mechanical Power Steering with Dual Pinion, Electro-mechanical Power Steering Components
  • System Overview
    • System Overview
  • Function
    • Control Map Characteristics, The Steering Function, Straight-Line Stability
  • Steering Mechanics
    • The Steering Gear
  • Steering Electrics
    • Steering Angle Sensor G85, Steering Torque Sensor G269, Rotor Speed Sender, Road Speed, Engine Speed (RPM) Sensor G28, Electro-mechanical Power Steering Motor V187, Power Steering Control Module J500, Electro-mechanical Power Steering Indicator Lamp K161, Special Features
  • Functional Diagram
    • Functional Diagram
  • Service
    • Diagnosis
  • Knowledge Assessment

The Self-Study Program provides you with information regarding designs and functions.

The Self-Study Program is not a Repair Manual!

For maintenance and repair work, always refer to the current technical literature.

Language: English
Format: PDF
Pages: 34

Self Study Program 892403 – Electro-mechanical Power Steering PDF free online

This website uses cookies to improve your experience. We'll assume you're ok with this, but you can opt-out if you wish. Accept Read More