S5 Quattro Coupe V8-4.2L (CAUA) (2009)
The slits in wheel bearing housing must not be widened using a chisel or similar tool!
Left Side
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Unclip plenum chamber cover - 3 - and remove it.
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Remove nut - 1 -.
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Remove filler neck - 3 - with filler tube from washer fluid reservoir and body opening - arrow B -.
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Remove bolts - arrows - and left E-box cover.