audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Oil Check Valve and Spray Nozzle Valve Assembly Overview|Page 4990 > < Oil Check Valve and Spray Nozzle Valve Assembly Overview|Page 4988
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Engine Oil Check Valve: Service and Repair
Oil Check Valve and Spray Nozzle Valve

Oil Check Valve and Spray Nozzle Valve

‹› If irregular valve noises disappear after a long drive but always return on short drives, oil check valve must be replaced.

Removing

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Remove intake manifold.

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Remove bolts - 1, 4, 5, 6, 7 - on high pressure line retaining clamps.

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Disconnect electrical harness connectors at fuel injectors.

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Remove high pressure lines - 2 and 9 - from connections on fuel rail.

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Remove high pressure lines - 3 and 8 - from connections on fuel rail. To do this, counterhold at hex head with and open-end wrench and loosen
the union nut.

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Remove high pressure lines.

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Remove bolts - arrows -.

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Remove cover - 2 - with crankcase ventilation hose -  1 -.

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Remove seal.

Oil Check Valve and Spray Nozzle Valve Assembly Overview|Page 4990 > < Oil Check Valve and Spray Nozzle Valve Assembly Overview|Page 4988