48 Steering: Definitions: Definitions

These explanations refer only to this component group: Suspension, Wheels, Steering They are not intended to be universally applicable.

Pr.-Nr. 

Abbreviation for service part number.

Steering angle sensor 

The steering angle sensor recognizes the direction in which the steering has been turned, left or right, and how far.

The data communication to the controller is made by the data bus lines

Heli-Coil 

A spiral of spring steel which can be screwed into a threaded hole and serves as the inner thread to receive a bolt.

Hytrel (Polyelastomer) 

Substance which remains elastic especially at room temperature right up to break-up temperature.

PR No. 

Abbreviation for production control number. They mark, among other things, options, country-specific deviations, and chassis data.

Rep.-Gr. 

Abbreviation for Repair Group

Settling 

Plastic (irreversible) forming of car springs through weight of vehicle.

Toe-in 

Angle of the plane of the wheel to the vehicles direction.

Toe-in differential angle 

Difference between turning angle of the inside wheel and turning angle of the outer wheel.

Camber 

Angle between plane of center of wheel and a line perpendicular to the ground. It is positive if the wheel is inclined outward at the top and negative if it is inclined inward.

SW 

Abbreviation for width across flats.

Tripod joint 

Common style of constant velocity with three rollers arranged in a star.