Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Brakes and Traction Control: Application and ID






Brake PR Number, Allocating

The Product Relevant (PR) number on the vehicle data label describes which brake system is installed in the vehicle.

Example of a vehicle data label:






In this example the vehicle is equipped with the following brakes:

Arrow 1 - rear brakes - 1KD

Arrow 2 - front brakes - 1ZF

There is a vehicle data label in the spare tire wheel well and also one in the customer's maintenance booklet.

Allocation, refer to the Parts Catalog

The following tables explain the PR numbers. These are important for the combination brake caliper/brake disc and brake pad.

Front Brakes






Rear Brakes