New Beetle L4-1.9L DSL Turbo (BEW) (2006)
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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.
