A8 Quattro Sedan V8-4.2L (BGK) (2006)
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Installation is performed in reverse order.
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Install the exhaust system free of stress. Refer to => [ Exhaust System Installing ] See: Service and Repair/Exhaust System Installing.
Tightening Specifications
Tightening specifications, refer to => [ Exhaust System Assembly Overview ] See: Service and Repair/Exhaust System Assembly Overview.
Secondary Air Injection (AIR) Combination Valve
Removing
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Remove the engine cover - 1 - upward.
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Remove the pipe bolt - 1 -.
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Reposition the crankshaft ventilation pipe clamps - arrows - and remove the pipe.
‹› Illustration shows the engine from the rear.
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Disconnect the vacuum hose - arrow -.