A6 Quattro Sedan V8-4.2L (BVJ) (2007)
Housing Assembly HVAC: Removal and Replacement
Fresh Air Intake Grille
Fresh Air Intake Grille
‹› Depending on the version, for some countries with high dust levels, a dust filter installed instead of intake air grille - A -, which prevents dust and
sand from entering the fresh air blower.
‹› If a dust filter is installed instead of the intake grille - A -, remove the dust filter as follows: Remove the plenum chamber cover, remove the Air
Quality Sensor (G238), loosen the holder for the pump/valve unit from the chassis (secured with 3 hex nuts), tilt the pump/valve unit to the side,
and remove the dust filter with the holder.
Removing
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Switch off ignition.
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Remove the plenum chamber cover.
CAUTION!
Even when the engine is cold, both pump/valve unit valves can be hot.
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Remove the windshield wiper arm and cowl panel trim
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If necessary, remove the dome brace (not present in all vehicles).
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Remove the air intake unit upper cover => [ Air Intake Unit Upper Cover ] See: Air Duct/Service and Repair/Air Intake Unit Upper Cover.
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Loosen the retainers - A - and remove the grille for the fresh air intake - B - from the air intake unit.