RS 4 Quattro Cabriolet V8-4.2L (BNS) (2008)
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Remove hose clamps - 1 - and - 3 - and lay air guide hose aside.
CAUTION!
Hose connectors - 4 - must not be opened.
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Disconnect electrical harness connector - 4 - at Mass Air Flow (MAF) Sensor (G70).
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Disconnect hose - 5 - to Secondary Air Injection (AIR) pump.
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Pull off the vacuum lines - 1 - and - 6 -.
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Disconnect air guide hose - 3 - at Mass Air Flow (MAF) sensor.
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Move wiring harness clear at air filter housing.
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Remove bolts - arrows - and remove the air filter housing upper section with the mass air flow (MAF) sensor.
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Remove clip - 2 - and remove the air filter housing lower section.
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Remove hose - 4 - to combination valves on secondary air injection pump by pressing release buttons