Hydraulic booster pressure accumulator — removal and installation (Audi 80 B3)

1. Release all pressure from the feedback hydraulic system by depressing the brake pedal with the engine off about twenty times.

2. Loosen the connecting bolt and disconnect the inlet pressure line. Note that the connecting bolt includes a mesh filter and a restrictor. Remove the washers.

3. Unscrew the union nut, disconnect the outlet pressure line.

4. Loosen the clamp and disconnect the return hose.

5. Unscrew the lower mount nut, remove the battery from the suspension. Remove the rubber cushions.

6. Installation is carried out in the reverse order. Top up the fluid level as described in Chapter 28, paragraph 9.