Removing
1. Loosen the clamp and disconnect the vacuum hose from the brake booster one-way valve.
2. Remove the valve from the rubber O-ring by turning it sideways and simply pulling it towards you.
3. Remove the sealing rubber ring from the vacuum brake booster.
Examination
1. Check the one-way valve for damage.
2. The valve can be checked by blowing it in two directions. Air must pass through the valve only from the brake booster side.
3. Check rubber sealing ring and vacuum hose for wear and damage. Replace if necessary.
Installation
1. Install the sealing rubber ring in the vacuum brake booster.
2. Insert the one-way valve into the vacuum booster. When doing this, be careful not to damage the rubber sealing ring.
3. Connect the vacuum hose to the valve and secure it with a clamp.
4. Start the engine and check the operation of the vacuum brake booster.