Parking Brake, Basic Function - GF42.20-P-1002A

Model All (4xWD, CAR) 

Overview 

This document contains information on:

• General 
• Function 

General 

The parking brake secures a stopping or parked vehicle to prevent it from rolling away, even on sloping roads. In contrast to the service brake, the parking brake acts on the brake system of only one axle. It is usually the rear axle.

Function 

The electronic parking brake (EFB) can be manually activated using the electric parking brake switch or automatically.

The electronic parking brake is activated manually or automatically, e.g. on an inclined roadway. It acts directly via actuator motors mounted on the brake calipers. The electric parking brake maintains the braking effect even when deenergized.

The electronic parking brake is released manually using a switch or automatically, e.g. when moving off.