A8L V8-4.2L (BFM) (2004)
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Tighten retaining ring for flange (right side) in diagonal sequence (arrows).
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Press on fuel supply pipe -1- and fuel return pipe -3- until they audibly engage.
Vehicles with auxiliary heater
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In addition, press on fuel supply pipe -2- for auxiliary heater until it audibly engages.
All models
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Attach electrical connectors -1- and -2- to flange (right side).
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Tighten cover for flange (right side) -arrows-.
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Connect battery. Note additional steps required after reconnecting battery.