S4 V8-4.2L (BHF) (2004)
Fuel Filter: Service and Repair
Fuel System with Return Pipe
Fuel Filter, Removing And Installing - Fuel System With Return Pipe
Removing
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Remove right cover next to fuel tank (arrows).
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Place appropriate receptacle underneath fuel filter.
WARNING: The fuel system is under pressure. Before opening system, place rags around the connection point. Then release pressure by carefully
loosening connection.
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Removed fuel lines -1- and -3- (press release button).
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Remove bolt -2-.
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Remove fuel filter.
Installing
Installation is reverse of removal, noting the following:
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The direction of flow is marked with arrows
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Arrow markings -1- and -2- must face each other
Tightening torque