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| The condensation water drain valve -A- should not stick and must close, its drain opening must be located at the bottom. |
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| Note: The water drain openings must not be blocked by contaminations and must be located at the bottom. |
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| Open the flap -D- of the heat-protection matting (at the pre-type punched points) and remove the condensation water drain valve. |
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| Remove condensation water drain valve -A- towards the bottom out of the floor plate, when installing pay attention to the proper position in the bulkhead -B-. |
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| The condensation water drain valve must not rest against the flap of the heat-protection matting in the installed position -D-. |
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| The condensation water drain valve must not stick with wax or underbody sealant (version -I-.) or it must not be blocked (version -II-). |
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| If problems exist due to humidity in the passenger compartment, check the condensation water drain -C- for correct fitting position in the condensation water drain valve -A-. |
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| Only use valve version -II- when replacing valve -A-. |
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