Working on the Electro-Mechanical Parking Brake (EPB)
The following Tech Tip demonstrates the basic steps for working on the Electro-Mechanical Parking Brake (EPB) systems found in VW/Audi vehicles. This control module is accessed using address [53 - Parking Brake] electronics.
This page contains the basic steps for working on the Electro-Mechanical Parking Brake (EPB) systems found in VW/Audi vehicles. This control module is accessed using address [53 - Parking Brake] electronics.
The specific procedures and Basic Setting groups for each vehicle are listed using the main Diagnostic Procedures page and choosing the proper Brand and Chassis type. Vehicles that typically use the EPB system include:
- Audi
- Bentley
- VW
Preparing the vehicle for the brake repairs
- The EPB module is very sensitive to low voltage conditions! It is critical that a battery charger is properly connected and used for the duration of the rear brake job.
- Vehicles with a battery mounted in the rear typically use a battery management module and it is essential to connect the charger properly at the charging posts as shown in this: Audi A8 (4E) example
- Verify that the EPB system is working properly prior to the repair. This includes but is not limited to applying the normal hydraulic brake pedal and operating the EPB switch and running a complete Auto-Scan prior to repairs.
- Make sure the system is fully assembled prior to repairs! This includes the calipers properly installed on the rotors with pads and all electrical components being connected.
The original "Avoid Damaging Rear Calipers" Tech Tip First appeared in Motor Magazine, June 2008. Copyright © 2000-2010 by Ross-Tech LLC. It is available in the downloadable .pdf format using this link to our Advertising Page.