A6 Quattro Sedan V8-4.2L (BVJ) (2007)
17
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Air duct
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Clipped into upper part of air filter housing
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Clean air duct of dirt and leaves
18
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O-ring
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Replace if damaged
19
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Lower part of air filter housing
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Clean air filter housing-lower part of salt residue, dirt and leaves
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Check water drain for dirt, clean if necessary (important)
20
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Rubber grommet
21
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Water drain hose
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Clean water drain hose of dirt and leaves (important)