Vacuum Brake Booster Check Valve: Service and Repair

Vacuum hose power brake booster, replacing

Note: The illustrations in this service information are used for different model years and/or models. Some variation may occur. However, the essential information in the illustrations is always correct.

Preparatory work
Ignition off.

Remove:





- the battery.
- the 3 screws
- the battery box.

Removal
Removing splash guards





Remove the 3 clips holding the cowl.





Carefully lift up the cowl. Remove the 2 clips for the protective cover. Remove the protective cover over the brake fluid reservoir.

Remove:





- the plastic nut
- the upper protective cover for the firewall.

Removing the master cylinder
Remove the 2 nuts. Pull the master cylinder out from the studs. Allow the master cylinder to hang from the brake pipes.





Note: Do not damage the brake pipes when removing the master cylinder.

Removing the vacuum hose
Remove:





- the connector (1)
- the control valve (2).

Remove:





- the clamp (1)
- the vacuum hose from the hose for the intake manifold
- the vacuum hose from the pump (2)
- the vacuum hose.

Installation
Installing the vacuum hose

Note: For tightening torques, see Specifications.

Install:





- the vacuum hose
- the vacuum hose on the pump (2)
- the vacuum hose on the hose for the intake manifold
- the clamp (1).

Install:
- the connector (1)
the control valve (2).





- the control valve (2).

Hint: Lubricate the control valve using soap solution for easier installation.

Installing the protective covers
Install:





- the protective cover for the firewall
- the plastic nut.





Install the protective cover over the brake fluid reservoir. Carefully lift up the cowl. Install the 2 clips for the protective cover.





Install the 3 clips holding the cowl.

Finishing
Install:
- the battery box
- the 3 M6 screws





- the battery.