Procedures

Hydraulic System, Bleeding

Special tools, testers and auxiliary items required

• Brake Charger/Bleeder Unit (VAS 5234)

• or Brake Charger/Bleeder Unit (V.A.G 1869)

• Bleed the system after working on the hydraulic clutch mechanism.

• Make sure no brake fluid gets on the longitudinal member or transmission when performing the following work.

• It is not necessary to pre-fill the system.

• Before bleeding, fill the brake fluid reservoir to the "MAX" mark with brake fluid.

• The clutch pedal is in the neutral position and is not pressed.

• Brake fluid: allocation, refer to the Parts Catalog.

- Remove the engine cover with the air filter.

- Disconnect the connecting pipe (if equipped) and vent tube - arrows - and remove the connecting pipe from the throttle valve.






- Connect the brake charger/bleeder unit (VAS 5234) or (V.A.G 1869).

Use the bleeder hose (670 mm) (V.A.G 1238/B3).

- Connect the bleed hose to the brake bleeder unit collector bottle.

- Attach the bleed hose to the vent valve - arrow -.






- Turn on the brake charger/bleeder unit.

- Apply 2 bar pressure to the system.

- Open the vent valve.

- Allow approximately 100 cm3 of brake fluid to flow out.

- Close the vent valve.

- Press the clutch pedal rapidly from stop to stop, 10 to 15 times.

- Open the vent valve again.

- Let another 50 cm3 of brake fluid flow out.

- Close the vent valve.

- Press the clutch pedal a few times after bleeding the system.