A8 Quattro Sedan V8-4.2L (BVJ) (2008)
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Remove bolts - arrows -.
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Rotate lower section of air filter housing and disconnect electrical connector - 3 - on Intake Air Switch-Over valve (N335).
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Remove lower section of air filter housing.
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Remove lower air guide hose from lower section of air filter housing - arrow -.
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Remove nuts - 2 and 3 - accessible from above.
