A6 Sedan V6-3.2L (BKH) (2007)
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Remove air duct - 1 - and - 2 -.
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Open clips - arrows - and remove upper part of air filter housing.
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Disconnect electrical harness connector - 1 - for Heated Oxygen Sensor (HO2S) (G39) and free up wire.
‹› Ignore - 2 -.
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Remove oxygen sensor - 2 - using ring spanner set (3337).
