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Water Infiltration in the Cabin

Model: Audi A6 C5, MK 2 - Years 1997-2004
Part: Body

If the cabin turns into a small pool, the cause may be a blockage in the drainage tube located in the air intake area. To fix this, access the hood and remove the cover of the air intakes. In this area, the battery is installed and needs to be removed. First, disconnect the negative terminal, then the positive terminal, remove the retaining screw, and take out the battery. Remove the bolts from the battery support and take it out. Under the battery support is the tube that drains rainwater outside. This tube can become clogged with dirt, leaves, etc., so it needs to be cleared to allow water to drain. To remove the water present in the cabin, it is strongly advised not to drill a hole in the floor but to use a proper liquid vacuum.

Updated on 3 February 2026 by ScegliAuto

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