Q7 Quattro V8-4.2L (BAR) (2008)
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Release retaining clips - 2 - and remove upper right section of air filter housing from lower section.
Vehicles with air suspension:
‹› If necessary, remove electrical connector for Heated Oxygen Sensor (HO2S) 2 (G108) from bracket at right strut tower for better access.
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Press circlip - 1 - forward from hose coupling.
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Press release ring - 2 - down - arrows - and remove vent hose - 3 - from upper section of air filter.
All Vehicles
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Disconnect vacuum hose - 2 - to Evaporative Emission (EVAP) canister purge regulator valve (N80) by pressing release button.
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Free up vacuum hose.
‹› Ignore - 1 - and - 3 -.
