volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Vacuum Pump, Brakes > < Brake Booster/Brake Master Cylinder, Assembly Overview|Page 7137
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Vacuum Brake Booster Check Valve: Testing and Inspection

Check function of non-return valve - A -

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Checking non-return valve - A -

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Air must pass through in direction of - arrow -.

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Valve must remain closed in opposite direction.

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Make sure that check valve is installed correctly.

Vacuum Pump, Brakes > < Brake Booster/Brake Master Cylinder, Assembly Overview|Page 7137