A8L Quattro Sedan W12-6.0L (BSB) (2005)
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Separate the vacuum lines - 3 - and - 5 -.
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Pull off hoses - 2 - and - 6 - for the crankcase breather.
‹› Ignore - 1 - and - 4 - in the illustration.
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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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Disconnect electrical connection - 6 - at Throttle valve control module (-J338-).