Brake System, Bleeding With Brake Charger/Bleeder Unit VAS 5234

Brake System, Bleeding with Brake Charger/Bleeder Unit VAS 5234

Special tools, testers and auxiliary items required





^ Brake Filler and Bleeder Unit VAS 5234

Work Sequence

- Connect Brake Filler and Bleeder Unit VAS 5234
- Remove protective cap from bleeder screw on brake caliper and attach bleeder bottle hose to bleeder screw.

Bleeding Sequence

1. Left front brake caliper
2. Right front brake caliper
3. Left rear brake caliper
4. Right rear brake caliper

- Leave bleeder screw open, with bleeder bottle hose connected, until brake fluid emerges out of the bleeder screw clear and free from air bubbles.

- Build up pressure in brake system to aid bleeding by pumping pedal five times.

- Tighten bleeder screw to 10 Nm. Detach hose and install protective cap on bleeder screw.

- Repeat procedure on remaining brake calipers in the specified bleeding sequence.

- Top off fluid level in reservoir to "MAX" mark (according to degree of pad wear) and close reservoir cap.

- Start engine and check brake pedal travel and pressure.

- If the pedal travel is excessive, check brake system for leaks or repeat bleeding procedure.

A zero compensation of brake pressure senders must be performed after bleeding brake system.

A test drive must be carried out after bleeding brakes. When doing this an ABS-controlled brake application on all four wheels must be performed at least once.

Brake Fluid, Changing