A4 Quattro Wagon V6-3.2L (BKH) (2005)
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Remove front engine cover - arrows -.
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Remove coolant expansion tank - arrow -.
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Disconnect electrical connection from Engine Coolant Level (ECL) Warning Switch F66 at bottom of coolant reservoir and set aside coolant
reservoir with coolant hoses - 1 - and - 2 - connected.
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Disconnect check valve - 1 - from connection at air duct hose.
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Remove air duct hose, thereby loosening hose clamp - 2 - and opening clips - arrows -.
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Remove the bolts - arrows -.
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Remove air duct - 1 - and - 2 -.