Vacuum Brake Booster Check Valve: Service and Repair

Vacuum Brake Booster Check Valve and/or Hose Replacement

Special Tools

SA9164C /KM-J-22610 Clamp Pliers


Removal Procedure





1. Remove the vacuum line elbow (1) from the brake servo.
2. Remove the snap fastening (2) for the vacuum line from the front intake manifold or from the vacuum pump.
3. Remove the snap fastening by pressing in the latch.
4. Remove the vacuum line.



Installation Procedure





1. Cut the open vacuum line at connections (1, 2) and remove from the connectors.

Important: Ensure that the arrow (3) on the non-return valve points in the direction of the intake manifold or vacuum pump.


2. Cut the new vacuum line (rubber hose with textile inlay) to length and fit with new clamps and SA9164C /KM-J-22610.
3. Press the vacuum pressure lines with elbow into brake servo.

Important: Ensure that all the connections are perfectly sealed.


4. Engage the vacuum line snap fastening onto connector of the intake manifold or the vacuum pump.
5. Inspect the function of the brake servo. Refer to Brake Assist System Diagnosis (Component Tests and General Diagnostics) .