General, Technical Data (Brake System) Audi A3 8P рестайлинг

ALLOCATION PR-NO./BRAKES

The brake system installed in a vehicle is documented on the vehicle data sticker via the relevant PR number.

Scheme 43

1. Arrow 2 - Rear wheel brake
2. Arrow 3 - Front wheel brake

The vehicle data label can be found in the spare wheel well as well as in the Maintenance booklet.

Using the PR-No. the correct combination of brake caliper/brake rotor/brake pad can be determined.

BRAKE FLUID

Brake fluid is hygroscopic, for example it has the capability to absorb water and moisture from the air.

If water has been absorbed, the boiling point will drop, for example, during high braking temperatures the brake fluid may develop steam bubbles and cause the brakes to fail.

Scheme 44

Over time, brake fluid will darken in color. Dark-colored brake fluid does not specify anything about its quality. The coloring occurs through chemical reactions and can occur after a short time (several weeks), especially in vehicles with ABS.

Even the smallest amount on a seal or boot can cause the part to change and thereby affect the function of the brake system. The results of an unclean brake system first show themselves months later, causing increased repair costs, especially on vehicles with ABS.

A = Boot - Original size

Scheme 45

B = Boot - Swollen through contact with mineral oil

It is implied by the previously mentioned points that

Keep containers of brake fluid closed securely. This is to make sure that no oil, dirt or cleaning materials and no humidity can enter the container.

Store containers of brake fluid away from oil (even hydraulic oil) and cleaning fluids to prevent an accidental mixing of both fluids or even filling the brake system with the wrong fluid.

BRAKES