General Information

Bleeding the braking system on vehicles with Anti-lock Brake System (ABS) is carried out as for vehicles with conventional braking systems.

Brake fluid must never come into contact with fluids containing mineral oils (oil, gas, cleaning solutions). Oils containing minerals damage seals and sleeves on brake systems.

Brake fluid is poisonous. Due to its caustic nature, it must also never be brought into contact with paint.

Brake fluid is hygroscopic, meaning that it absorbs moisture from the surrounding air, and must therefore be stored in air-tight containers.

Rinse off any leaking brake fluid using plenty of water.

Do not reuse brake fluid once drained.

Follow all disposal regulations.

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 carefully.

Store oil (also hydraulic fluid) and cleaning fluids separately.

Accidentally mixing fluids or even filling the brake system with the wrong fluid must be prevented.

If one chamber of the brake fluid reservoir is completely empty, the brake system must be pre-bled. Refer to HYDRAULIC SYSTEM, PRE-BLEEDING .

Changing brake fluid. For maintenance. Refer to => 14.2.

The bleeding of brake system using the Brake Charger/Bleeder Unit VAS5234 is described.

A positive pressure of 2 bar required to bleed the ABS Hydraulic Unit -N55-.