Touareg V8-4.2L (BAR) (2007)
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 noise occurs repeatedly during short journeys and disappears after extended driving, the 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
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
Installation is in reverse order of removal, note the following: