Q7 Quattro V8-4.2L (BAR) (2008)
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Open the clips - 2 - and remove the right air filter upper section from the air filter 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 the release ring - 2 - down - arrows - and remove the ventilation hose - 3 - from the air filter upper section.
All:
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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 -.