A8L V8-4.2L (BFM) (2004)
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Open clamp -1- and detach suction hose -2- from connection piece -3-.
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Unscrew air line from air supply unit -arrow-.
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Unscrew nuts-4- and remove air supply unit.
Note: Shown without bumper for ease of illustration.
Installing
Installation is in reverse order. Note the following:
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The tightening torques of bolts/nuts and information on whether the bolts/nuts must be replaced => (assembly overview: air supply unit).
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Install front noise insulation.
See: Air Supply Unit, Assembly Overview
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Install the wheel housing liner.
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Install and tighten wheel