A6 Quattro Sedan V8-4.2L (BVJ) (2007)
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In vehicles with a Version "1" air intake unit (running change to Version "2" beginning 05.04, distinguishing characteristics to Version "2"=> [
Characteristics of Air Intake Unit Versions 1 and 2 ] See: Description and Operation/Characteristics of Air Intake Unit Versions 1 and 2) place a
caulking strip (2 x 2 mm) in groove - D - of upper cover - A -, or seal the tongue and groove joint to the housing - B - e.g. with silicone sealant
"D 176 001 A3".
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In vehicles with a Version "1" air intake unit, seal the area between upper cover - A - and housing - B - (or the inner cover) in area - C - e.g. with
silicone sealant " D 176 001 A3".
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Reinstall the air intake unit upper cover - B -.