S4 Quattro Wagon V8-4.2L (BHF) (2008)
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Remove bolts - arrows -.
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Remove air duct - 2 -.
CAUTION!
Note rules of cleanliness for working on the fuel injection system. Refer to => [ Clean Working Conditions ] See: Engine/Service
Precautions/Vehicle Damage Warnings/Clean Working Conditions.
CAUTION!
Fuel system is under pressure! Before opening system, place rags around the connection area. Then release pressure by carefully
loosening the connection.
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Unscrew fuel hose from connection on fuel rail pipe. To do so, counterhold using an open-end wrench at hex head - 1 - and - 3 - and unscrew
union nut - 2 -.
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Disconnect electrical harness connector - 2 - from Evaporative Emission (EVAP) Canister Purge Regulator Valve ( N80).