Pr Number Allocation - Brakes

WARNING: This page is about a different car, the 2025 Audi S3, 2025 Audi RS 3, and 2025 Audi A3 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

Vehicle data label, example

Fig 1: Example of a Vehicle Data Sticker

Courtesy of AUDI OF AMERICA, LLC

The respective PR number on the vehicle data label describes which brake system is installed in the vehicle, among other things.

Example of a vehicle data label:

A -

Rear Brakes (Example)

B -

Front Brakes (Example)

Vehicle data label component location. Refer to VEHICLE DATA LABEL .

ELSA/Vehicle-Specific Notes

Fig 2: Identifying Rear Wheel Brake Number

Courtesy of AUDI OF AMERICA, LLC

The relevant information regarding the brakes installed can also be obtained through ELSA/vehicle-specific notes.

Example of a display:

1KU -

Rear Brakes (Example)

1LJ -

Front Brakes (Example)

Allocation. Refer to the Electronic Parts information
The tables explain the PR numbers. These are important for the brake caliper/brake rotor and brake pad combination. Refer to TECHNICAL DATA .