4. Remove brake booster (Fig. 1 shown item 4) with brake master cylinder. To do so, the hydraulic unit, and in the case of vehicles with PSM,
the booster pump must also be removed.
5. Remove bellows and rubber grommet (Fig. 2 item 1, 2, 3), brake push rod (Fig. 1 item 9) and intermediate piece (Fig. 1 item 11).
6. If necessary, completely remove the sealing ring at the opening in the body firewall.
7. Insert the sealing ring (Fig. 1 item 7.2) without lubricant in the opening in the body firewall.
8. Insert the connecting piece (Fig. 1 item 7.1) with rubber lubricant into the sealing ring (Fig. 1 item 7.2).
9. Mount the sealing ring (Fig. 1 item 7.3) onto the connecting piece (Fig. 1 item 7.1).
10. Install the intermediate piece (Fig. 1 item 11).
11. Install new brake pedal in vehicles of model year '97, if necessary.
12. Install a new brake push rod (Fig. 1 item 9.1), using a new pin and a new threaded bushing. The brake push rod must be replaced because the
double rib (Fig. 2 item 9, arrow) for the grommet uptake on the previous brake push rod brushes against the new seal.
13. Mount the new push rod (Fig. 1 item 12.1) with hexagon nut M6 (Fig. 1 item 13.1) on the brake booster (Fig. 1 item 4). It is only necessary
to replace the push rod (Fig. 1 item 12) when the tab washer (Fig. 1 item 13) is installed. Set the push rod on the brake booster to the basic
setting.
14. Install brake booster (Fig. 1 item 4) and brake master cylinder with mounted bellows (Fig. 1 item B) and tightly fastened clamp (Fig. 1 item
6).
15. Connect the brake push rod (Fig. 2 item 9.1) and the push rod (Fig. 1 item 12.1). To do so, mount the hexagon nut (Fig. 1 item 13.1).
Overview of work to be carried out (ctd.; Fig. 2 item nos.):
16. Check or adjust the position of the brake pedal. Check the stop light switch setting.
17. Position the bellows (Fig. 1 item B) on the connection sleeve (Fig. 1 item 7.1) and secure with the hose clamp (Fig. 1 item 6.1).