2004 S430 Water in floor board - Mercedes-Benz Forum

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post #1 of 2 (permalink) Old 05-22-2008, 07:29 AM Thread Starter
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2004 S430 Water in floor board

My uncle showed up at work experiencing all kinds of issues with his electrical system on his S430. The SRS system was pulling all kinds of codes and his tail lights remained on even when switched off.

Ironically he made it to work but once he shut the car off it would not start again. I pulled the battery cable to save the battery but at first I couldn't determine the problem.

I then put my hand down on the passenger side floor board and noticed it was soaking wet. After doing some research they put a fuse box on the floorboard.

The guy at the shop said that pollen had clogged a drainage hole in the engine compartment. It rain the night before and evidently the water ran into the passenger compartment flooding the floor board. Has anyone experienced this?

Last edited by donzi32; 05-22-2008 at 08:52 AM.
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post #2 of 2 (permalink) Old 05-24-2008, 12:34 AM
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By any chance are you in North Carolina?
I ask because I had this very same problem happen today. Or, rather it was noticed today.

It started when I drove the car this afternoon. The rear wiper started coming on sporadically, then the problem proceeded to the turn signals not working. I also had the issue with the parking lights not turning off when the car was parked and the light switch turned off.

Luckily, I made it home and my husband discovered the exact same problem, that you are describing with the front passenger floorboard being wet and the rear passenger side actually holding water in a compartment under the seat.

This is also the area where the main essential fuses are located. He unhooked the battery in order to get the lights off and we have been trying to figure out what happened to cause all this water to be trapped in the car.

Our Mercedes is a E-320 and we have had it for three years, but this is the first time this has happened.

Was there permanent damage to the fuse box in your Uncle's car or what was the repair needed. I know each incident is different, but I am cringing at the thought of what will have to be replaced.

Good luck and I hope others will chime in with their experience with this issue.
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