A8 Quattro Sedan V8-4.2L (BGK) (2006)
Vehicles in Rest of World configuration:
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Remove vacuum hose - 2 - on air guide hose.
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Remove crankcase ventilation hose - 1 - from air guide hose by pressing release buttons.
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Loosen hose clamps - arrows - and remove air guide hose.
Vehicles in USA configuration:
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Remove vacuum hose - 2 - from air guide hose.
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Loosen hose clamps - arrows - and lay aside air guide hose.
CAUTION: On vehicles in USA configuration, hose connection - 1 - must not be opened.
ALL:
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Remove vacuum hose - 1 - from intake manifold.
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Remove bolts - arrows - and remove air duct.
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Remove electrical connectors - 2 - from bracket.
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Disconnect electrical connector - 1 - on Engine Coolant Temperature (ECT) Sensor G62.
Install in reverse order.