General Information
Brake system, bleeding (vehicles with and without ABS)
Changing brake fluid
Notes:
^ Only use new brake fluid conforming to US standard FMVSS 116 DOT 4.
^ Genuine VW/Audi brake fluid conforms to this specification.
^ Brake fluid is poisonous. Do not siphon by mouth.
^ Brake fluid is corrosive and must not come into contact with painted parts.
^ Rinse off spillages using plenty of water.
^ Brake absorbs moisture from the ambient air and must therefore always be stored in airtight containers.
Bleeding
(with brake filling and bleeding tool US 1116)
- Using suction bottle, remove as much brake fluid as possible from brake fluid reservoir.
- Connect US 1116 to brake fluid reservoir and switch on.
- Open bleeder screws and bleed brake calipers and wheel cylinders in the sequence:
1. Right rear wheel cylinder
2. Left rear wheel cylinder
3. Right front brake caliper
4. Left front brake caliper
Note: Do not press the horizontal brake pressure regulator lever down when bleeding the brakes on vehicles with a brake pressure regulator.
(without brake filling and bleeding tool US 1116)
- Attach bleeder bottle hose.
- Build-up brake pressure in brake system by pumping brake pedal.
- With brake pedal held down, open and then close bleeder screw.
- Release brake pedal.
- Repeat operation until brake fluid flows with no air present.