audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Oil Check Valve and Spray Nozzle Valve, Assembly Overview|Page 5257 > < Oil Check Valve and Spray Nozzle Valve, Assembly Overview
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Engine Oil Check Valve: Service and Repair
Oil Check Valve and Spray Nozzle Valve, Removing and Installing

Oil check valve and spray nozzle valve, removing and installing

Note: 
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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, counter-hold at hex head with and open-end wrench and loosen
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.

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Remove oil check valve - 1 - and spray nozzle valve - 2 -.

Installing

^

Tightening torques see Oil check valve and spray nozzle valve, assembly overview.

Oil Check Valve and Spray Nozzle Valve, Assembly Overview|Page 5257 > < Oil Check Valve and Spray Nozzle Valve, Assembly Overview