W108 water intrusion

[Palolo]

Aaaargh!

My car got caught out in some rain overnight...well, if you can call 9" of falling water "rain".

This morning I noticed the right rear floor pan is wet, and the left corner of the windshield is weeping.

Not sure where the water in the floor is coming from, maybe the door bottom?

The windscreen seal appears to be weeping water through the glass channel. It looks like a new seal, so maybe it isn't a genuine seal. Or maybe it needs to have the glass popped out and reinstalled with some grease in the channel to seal any gaps/crevices?

Coincidentally, my cavity-rust-proofing kit just arrived, so I will wait for the sun to come out then blow dry the car and all the crevices and shoot the wax all over.

Not sure how I'll track down the water entry in to the rear floor. So far I have been sopping it up and running the heater every so often to keep the carpets and interior toasty dry.

[sjefke]

Not sure about 108 cars, but also check the top corners of the front vent windows. I have water leaking from there when my car is in a certain position.

The British (at least MG) came up with an good remedy against water accumulating in the car: holes in the floor panel. And it works. No kidding. They are in there - factory installed.

Bert

[tram]

The rear floor is the lowest point. Your leak is at the front.

Other possible suspects are plugged vent air box drains and sliding roof drains if you have a sliding roof.

[Palolo]

Originally Posted by sjefke

Not sure about 108 cars, but also check the top corners of the front vent windows. I have water leaking from there when my car is in a certain position.

The British (at least MG) came up with an good remedy against water accumulating in the car: holes in the floor panel. And it works. No kidding. They are in there - factory installed.

Bert

I saw the rubber plugs in the floor... Also the floor is coated with some kind of bituminous coating. Any idea what that is and how to pull it off? There are cracks in it, and I can tell that water has seeped in to the crack as it seeps out again when I am drying the floors, so I would like to open it up where the cracks are, dry it throughout, and re-prep it.

My Land Rover has a rain indicator; it drips on me when it rains, and the drops fall on to the floor and out the large panel gaps... Clever, those British.

[Palolo]

Thanks Tram, I'll check for those drains. I don't have a sliding roof, so I am thinking it is coming in from the cowl vent or windshield seal...

Thanks for the leads. I'll hund down the path somehow...

Luckily I had the mats out of the car for another reason and noticed the water.

Thanks much,

Pat

[Palolo]

Any idea what the goo layer is on the inside of the floor?

And how to take it off? I think some water got under it in one spot.

Thanks!

[mercmad6.3]

Either warm it with a hair dryer and scrape it off or use a CO2 bottle and chill it and break it up.

[Palolo]

Thanks! I will try the hair dryer in the spot where the stuff has a crack and water got in, as the rest of it appears intact.

I've been wicking the dampness out with a paper towel, and running the floor vents with hot air... Localized hair dryer is next.

Cheers,

Pat