Water ingress

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Old Jan 8, 2021 | 03:14 PM
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Water ingress

I have never had water ingress problems - partly because I clear the drainage channels regularly of any muck or leaves when parked on my drive.
But I have had two ingress problems within a month.
One was pinpointed to a defect in the seal around the A-pillar (where the roof connects to the windscreen) and this was fixed under warranty

But now I have a damp passenger footwell which the engineer cant pin-point to anything. He checked the drainage channels (clear), seals (fine) so he dried out the carpet, did a water test, kept the car out in the rain, did a water test again and all good. So why was the carpet damp in the first place?

Am I missing something?
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Old Jan 8, 2021 | 03:58 PM
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I can't help with this, unfortunately, but just wanted to post before Surge comes in here to tell you that MB engineering is perfect and it's your fault.


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Old Jan 10, 2021 | 08:59 AM
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I had water drops come out of the ac vent with the top down on high humidity days ... enough to wet the carpet but not really do any damage. I also check my drains frequently as the convertibles with get water in them if they get plugged. Never heard of the A pillar issue though.
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Old Jan 11, 2021 | 08:41 AM
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You're right
Its probably only condensation from the windscreen (when I am clearing the screen and the air flow flicks drops of water onto the seat/carpet) or from the AC vent.
The engineer went over the car again and again and water tested it 3 times over 4 days and was not able to recreate the leak.

The A-pillar seal replacement was a defect and replaced under warranty.
This is not the seal around the glass portion of the windscreen.
This is the actual rubber/alcantra section on the inside surface of the A-pillar right round the two pillars and across the back of the windscreen.
A good 4 day job and then car in the paint booth to dry off under heat and then all the bits go back on.
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Old Jan 11, 2021 | 09:23 AM
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Can someone tell me and show photos of where the drain plugs are that need to be cleared?
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Old Jan 11, 2021 | 04:43 PM
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2018 AMT GT Roadster



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Old Jan 11, 2021 | 04:45 PM
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X marks the spot ... trust me when I say that failure to keep these clean can cost close to 10 big ones ...
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Old Jan 11, 2021 | 05:38 PM
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Thanks but I am disoriented. Where exactly will I find these?
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Old Jan 11, 2021 | 05:42 PM
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These pics were taken with the top down and the drivers door open. The plastic is the flap that actuates when the top in opened or closed. You look in-between the top and the rear quarter, very small space. I'll take another pics later.
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Old Jan 11, 2021 | 05:48 PM
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Try this pic ... the finger points the way to the X makes the spot
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Old Jan 12, 2021 | 08:18 AM
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Thank you. Got it.

Edited to add: I went to the garage to look. Although I've only had the car since the beginning of September 2020, it sat at the dealership for over a year (!). Nevertheless I didn't think it would have any issues. I've never driven it in the rain (and we've only had a couple of days of rain in Southern California since I bought it). But I was wrong. There is debris circling the drain. I will clean it out when I find something that can get into that space.

Last edited by MalibuScott; Jan 12, 2021 at 08:26 AM. Reason: Additional info
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Old Jan 12, 2021 | 12:25 PM
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check both sides
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Old May 31, 2021 | 08:01 PM
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What do you use to clean it out?
Thanks
Jan
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