I searched and couldn't find anything.

On my 380SE, the gas cap area fills up with water whenever I wash it. It looks like the little rubber drain tube is plugged. I snaked a wire hanger down there but it didn't help. It seems that the tube takes a sharp bend at some point and I can't follow it to the end.

Does anybody know where this tube goes? How do I unplug it? Or possibly replace it?

TIA

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91 W124 300E
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85 W126 380SE Silver
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75 W114 280