A8L Quattro Sedan W12-6.0L (BSB) (2005)
Air Injection Control Valve: Service and Repair
Right Combination Valve for Secondary Air Injection
Right Combination Valve for Secondary Air Injection
Removing
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Separate electrical connector - 1 - for mass air flow (MAF) sensor (G70).
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Disconnect air duct hose - 4 - at intake manifold.
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Unhook retainer for connections - 2 - and - 3 - at upper part of air filter housing.
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Remove bolts - arrows -.
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Remove upper part of right air filter housing.
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Remove air duct - 1 -.
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Remove bolts - arrows -.
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Remove lower part of right air filter housing.
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Pull hose - 1 - off from right combination valve for secondary air injection.