Water ingress solution?
Water ingress solution?
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Discussion

eybic

Original Poster:

9,212 posts

204 months

Friday 17th January 2020
quotequote all
We've got a problem with our '06 Civic letting water into the drivers footwell. I've check the A/C drain, pollen filter, door drains and have drawn a blank. The Cill and all plastics around the footwell are dry but the footwell is sodden frown

There's mention that the windscreen sealant can have issues if the screen has been replaced (it has an original honda screen). On another unconnected facebook post, someone linked to this "creeping crack cure" stuff that worked for them previously on a body seal, has anyone used it before and was it any good?

I'm thinking of running a bead of it around the screen to see if it makes a difference but if it makes a mess, I might not.

Thank you

996TT02

3,342 posts

170 months

Friday 17th January 2020
quotequote all
Ever done any work to the doors, removed door trim panels? If the plastic liner behind them has been removed, or torn, water will enter the footwell via the door. Very common on practically any car, some numpty does not understand the function of the plastic liner/membrane, or finds it difficult to remove as it's glued to the door frame and it gets torn or removed and never replaced.

archie456

522 posts

252 months

Friday 17th January 2020
quotequote all
I’ve just been trying this morning to fix a leak on my wife’s 57 plate civic, and it seems to be from the roof gutters.
It appears the sealer that they use around the roof-rail mounts goes after a while.
You can pop the plastic trim off, clean up and seal around the mounts.
I’ve just done this and am hoping it is the problem. If not it may be the panoramic roof seal.
My wife’s leak is at the the rear seats area, but could easily have been the front.
I’ll report back when it’s set and I can test it.

eybic

Original Poster:

9,212 posts

204 months

Friday 17th January 2020
quotequote all
996TT02 said:
Ever done any work to the doors, removed door trim panels? If the plastic liner behind them has been removed, or torn, water will enter the footwell via the door. Very common on practically any car, some numpty does not understand the function of the plastic liner/membrane, or finds it difficult to remove as it's glued to the door frame and it gets torn or removed and never replaced.
Thank you, we've only owned the car for about 4 months and not done anything with the doors in our time, I'm not sure that it is coming from the door as the cill plastic and the door trim plastics are bone dry, the door drains are also draining fine.

eybic

Original Poster:

9,212 posts

204 months

Friday 17th January 2020
quotequote all
archie456 said:
I’ve just been trying this morning to fix a leak on my wife’s 57 plate civic, and it seems to be from the roof gutters.
It appears the sealer that they use around the roof-rail mounts goes after a while.
You can pop the plastic trim off, clean up and seal around the mounts.
I’ve just done this and am hoping it is the problem. If not it may be the panoramic roof seal.
My wife’s leak is at the the rear seats area, but could easily have been the front.
I’ll report back when it’s set and I can test it.
Thanks, that would be appreciated, fortunately we don't have a sunroof so one less thing to check rolleyes So maybe the trims that go from the boot, along the roof then down the side of the screen? Are they easy to remove?

archie456

522 posts

252 months

Friday 17th January 2020
quotequote all
There’s no sunroof on my wife’s car, just a big glass panel. Prise the plastic cover up midway along the roof, and lift it until the rear end slides forward and releases. I’ve not taken it off beyond where it meets the windscreen, but suspect it will be similar.

archie456

522 posts

252 months

Friday 17th January 2020
quotequote all
I just checked the car.

I had scrubbed round the mountings with meths with the doors shut. Inside the car now smells of meths, a bit of a clue.

The good news is it has rained today, and I've poured a load of water over it and there's no sign of any coming in. Looking good so far.

I suggest you try cleaning with meths first and check for the smell, I think I accidentally found a good way to detect a leak :-)

My wife's car had leaks on both sides, so I would seal all the mounts on both sides. It's a pretty quick job, I used a hot air gun to blow away the meths and dry it. While you're there also go over the seams behind the rear end of the gutter, these have the same sealant on them.

Let us know how you get on.

eybic

Original Poster:

9,212 posts

204 months

Monday 20th January 2020
quotequote all
Thank you, I'm getting someone to look at it on Wednesday, did you replace the clips for the roof mouldings? Apparently they are brittle so I might get some clips before we attempt to remove the mouldings.

archie456

522 posts

252 months

Monday 10th February 2020
quotequote all
Sorry, I missed your post.

All the clips were fine and refitted OK, and there has been no more water coming in.

Did you get yours fixed?

mercedeslimos

1,889 posts

199 months

Monday 10th February 2020
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Do these have a deep "plenum chamber" under the scuttle/wipers?

Had a few cars now where the drains for this fill with pine needles etc and block, and then the water gets in through the clutch slave pipe holes, etc. when the water level rises.

eybic

Original Poster:

9,212 posts

204 months

Monday 10th February 2020
quotequote all
archie456 said:
Sorry, I missed your post.

All the clips were fine and refitted OK, and there has been no more water coming in.

Did you get yours fixed?
We've tracked it down to the roof trim and it seems the water was coming down the A pillar and into the footwell. I need to order clips for the trim and also an "airbag clip" for the A pillar, it's taken a back seat for the minute due to a house move but it seems we have tracked it down, thank you thumbup