A4 Quattro Cabriolet V6-3.2L (BKH) (2007)
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Remove bolts - arrows -.
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Remove air duct - 1 - and - 2 -.
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Disconnect check valve - 1 - from air duct hose.
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Remove air duct hose, thereby loosening hose clamp - 2 - and opening the clips - arrows -.
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Remove pin from spreader clips - arrow -.