E85 Water Leak in engine bay/Wet driver side floor

[skmattwell]

Well I'm not a betting man, but I think I found the problem...

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Looks like I'm not the first one to be back here, but hopefully the last! All went well and even managed to swap out my door handles for shiny new ones.

Thanks again for both of your help! If you need my old door handles you're welcome to them

[enuff_zed]

Love the optimistic use of masking tape on the passenger door. Holding what exactly?

Hopefully all sorted now then....................... and at least you know the scuttle area is clean too.

[DMike]

Looks like I'm not the first one to be back here, but hopefully the last!

The previous owner must have been a verewolf!

[[email protected]]

Well, I've changed the driver side door seal with a new one from BMW. Cleared the scuttle out and cleared the drains from behind the driver and passenger seats. I've replaced the Yaw Sensor with a refurb from eBay, (all lights off!!). But...a bit but. I think I still have a wet floor under the drivers seat.
Any ideas anyone, are there any other places I need to look. I'm thinking blanking plugs, windscreen maybe ?

[skmattwell]

Well, I've changed the driver side door seal with a new one from BMW. Cleared the scuttle out and cleared the drains from behind the driver and passenger seats. I've replaced the Yaw Sensor with a refurb from eBay, (all lights off!!). But...a bit but. I think I still have a wet floor under the drivers seat.
Any ideas anyone, are there any other places I need to look. I'm thinking blanking plugs, windscreen maybe ?

Sure there are more knowledgeable people here, but maybe something as simple as a gap where the top of the window meets the soft top? Presuming you have a roadster that is.

Did you use new butyl tape when fitting the new seal?

If you've only just made the above fixes, would leave it a while for any existing water to dry out as it may just still be wet from before

[enuff_zed]

Well, I've changed the driver side door seal with a new one from BMW. Cleared the scuttle out and cleared the drains from behind the driver and passenger seats. I've replaced the Yaw Sensor with a refurb from eBay, (all lights off!!). But...a bit but. I think I still have a wet floor under the drivers seat.
Any ideas anyone, are there any other places I need to look. I'm thinking blanking plugs, windscreen maybe ?

The foam holds gallons of water. Are you sure it's not just residual leaching out from that?
I'd suggest sealing the yaw sensor in a poly bag if you haven't already. Just in case.

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Well all, I found another problem which I fixed, the bottom of the door card was flapping about and a big gap between it and the door. I think water was running down inside the bottom of the card and dripping driver side of the seal!
My membrane wasn't as bad as above but it was ripped. I sealed it all up with Gorilla Tape, I find it better than Duck Tape to be honest.
enff_zed, I took your advise and sealed the yaw sensor in a thick poy bag and sealed it all up with zip ties and insulation tape.
It chucked it down with rain the other night but I don't think it got through to the floor, I'll keep you posted.
Thanks for all your help

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[Marcus Hedman]

Hi all! Just want to give some info on my identfied leaks, including one that I can't see has been covered before.
1. Hood drain, well known issue
2. Door membranes, well known issue
3. Scuttle drain drains the water directly onto the soundpipe, minor amount of water has followed the pipe into the cabin. I fixed by replacing the rubber drain with a small hose going further down, passing by the soundpipe. It also doesn't clog up as easy as the old with the lid. All drain lids seems to create clogging. I have removed all lids
4. A for me completely unknown and major new leak soaking the carpet on the right side of the car came from the cabin air intake. The scuttle panel is original and lets water in from the windscreen, because of the rubber being old. The water comes down onto the cabin air intake. The outer part of the air intake can be removed and there is some kind of sealing between the parts. However it isn't tight. When I poured water onto the windscreen it started coming out on the floor under the right seat after a minute. I fixed it by adding silicon as a sealant in the intake, and replacing the scuttle panel.

A photo of the soaked intake after removing the outer part

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[[email protected]]

That’s interesting. I can’t work out where you have taken the photo from. Can you add a couple more please. I’ll check ours once I know where I’m looking !!

[Marcus Hedman]

Just behind the plate circled with blue

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[[email protected]]

Ah. Mines different. I’ll take the scuttle off again and have a look behind

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[Marcus Hedman]

Aha, it’s mirrored, the intake is under the ventilation grid on the right

[[email protected]]

now I'm totally confused. We must have different models. Mines a 2.5i 2005

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[Marcus Hedman]

It’s the same setup still, if you remove the scuttle panel, you will find the intake on the right side of the photo. Under the area with the grid

[Marcus Hedman]

Here

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