Removal and installation the brake fluid reservoir (Audi A4 B6)

1. To remove the tank, remove the battery section cover.

2. Remove the connector from the float switch sensor.

3. Attach a bleed hose to the front left brake caliper and lower the other end of the hose into a container with brake fluid. Open the bleed valve. Using the brake pedal, pump out the appropriate amount of brake fluid. Make sure that the master cylinder is not drained. Close the valve.

4. Remove the hose from the primary cylinder of the hydraulic clutch drive and plug it with a plug.

5. Tilt the reservoir sideways and separate it from the master cylinder. Don't forget to press the locking tab down.

6. When installing, insert new sealing rings into the holes of the master cylinder.

7. Insert the reservoir so that it engages. Connect the hose for the primary clutch control hydraulic cylinder and the float switch connector.

8. Remove air from the brake system.