Vehicles with a diesel engine are equipped with a vacuum pump that provides reduced pressure to the vacuum booster, due to the absence of such in the intake manifold.
Withdrawal
Attention! The vacuum amplifier cannot be repaired and is replaced as a set.
1. Remove the main brake cylinder, see the relevant chapter.
2. Disconnect the vacuum supply hose from the amplifier.
Attention! The rod of the vacuum booster of the brake drive is attached to the brake pedal with a ball head at the end. To disconnect the rod from the pedal, you need a special tool, for example, VW / AUDI T10006 (see illustration 10.2).
10.2. Special tool VW / AUDI-T10006 for disconnecting the vacuum booster rod from the brake pedal
3. Remove the brake light switch on the brake pedal.
4. Get the special tool T10006 under the brake pedal and fix it on the ball head of the vacuum booster rod (see illustration).
10.4. Slide the special tool T10006 under the brake pedal and fix it on the ball head of the vacuum booster rod
5. Feed the device in the direction of arrow A. This opens the clamps 1 on the brake pedal and the rod head is released (see illustration 10.4).
6. Hold the tool in its original position and move the brake pedal in the direction of arrow B (see illustration 10.4), to remove the clamps from the stem head.
Attention! If the fixture is released, the clamps will return to their original position and the pedal cannot be detached.
Installation
Installation of the vacuum booster is performed in the reverse order of removal.
10.0. Adjust the vacuum booster rod length
Attention! When installing a new vacuum booster, it is necessary to adjust the length of its pusher. Distance «A» from the rod head to the contact surface of the amplifier to the bulkhead of the engine compartment, excluding the sealing gasket, should be 159 mm±0.5 mm (see illustration 10.0). Changing the length is done with an adjusting nut on the stem.
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