A4 Quattro Sedan L4-2.0L Turbo (CAEB) (2009)
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Remove the glove box for the right condensation water drain.
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Remove storage compartment on driver's side for the left condensation water drain.
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Fold back the carpet far enough around the area of the condensation water drain hose (left or right) so the drain is visible.
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Check the condensation water drain hoses - B - that they are properly routed and for dirt. (correct, for example, any constrictions)
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Cover the area under both openings - D - (for condensation water drain - C -) with absorbent paper (so that any water present does not get under
the carpet).
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Remove both condensation water drain hoses - B -.
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Check both A/C condensation water drains - A - for soiling (for example, using a piece of wire).
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Check the gap between the insulation mat installed in the center tunnel - E - and the end of the condensation water hose - C - above the openings -
F - in the floor panel - D - ; the gap must be large enough so that the condensation water can flow out of the hose - B -.
Installing
Install in reverse order, paying attention to the following.
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Install both condensation water hoses - B - making sure they are not twisted or kinked different styles for the left and right side.
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When installing floor carpet, take special care that it does not compress the condensation water drain hose - B -.
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If a condensation water drain hose - B - fits too loose on the A/C condenser water drain - A - , secure it with a clamp, for example, so that it cannot
slide off.