Water into the boot again - ideas please

[Max]

Hi all, Heavy rain last night..................... no water in the boot this morning!! What I have done to fix it...........if resolved. No idea. I played with the softtop and seal behind the drivers door. Maybe ill try some silcone grease on the seal, just in case. The water did appear to be getting in from behind the boot lid, so soft top area. I have no idea how the top is attached to the wing and as such how water could get into the wing itself.

 

[brickya]

Hi, I had a similar issue where water was welling up on either side of the boot. The fix was fairly easy for me. During a downpour I opened my boot and saw water dripping from near the rear lights. I took off the lights cleaned out surrounding area of muck applied a little silicone to where the screws hold down the plastic trim on the surround and job done! No issues since.

 

[ph001]

You say no problems when washing the car so I assume also no problems when parked outside?? If it happens only when DRIVING in the rain then I wonder if it could be the rear suspension top mounts? Any kind of gap here might let water spray in to the boot area from the rear wheels and would soak the noise deadening foam at the top of the arch.

 

[Dale_B]

I have previously experienced water in the battery compartment a number of years ago.... It turned out to be both ‘vents’ at the rear (as per picture below)....
These are inline with the water drainage routes from normal rain fall.


Part number: 64226909340

 

[Rich8]

Was also going to suggest the vents that Dale has highlighted. Have been known to cause leaks into the side wells of the boot and always takes people a while to find it.
That sponge insulation sucks up the water like....errr....a sponge. One corner of it in water and before long the whole things sodden so makes it hard to pinpoint the leak from what is damp unfortunately.
The inside of the vent comes out just below the rear of the light clusters - you have to remove carpet and trim to see it.

 

[olsonn]

I did all the new light cluster seal and silicon spray on the seal, finally ended up using sealant on seals within the boot on top of where the lights are situated, actually inside the boot and have never had another problem, if this doesn't make sense I will take some pics tomorrow

 

[Dale_B]

Was also going to suggest the vents that Dale has highlighted. Have been known to cause leaks into the side wells of the boot and always takes people a while to find it.
That sponge insulation sucks up the water like....errr....a sponge. One corner of it in water and before long the whole things sodden so makes it hard to pinpoint the leak from what is damp unfortunately.
The inside of the vent comes out just below the rear of the light clusters - you have to remove carpet and trim to see it.

Exactly this

 

[ph001]

But what is going wrong to allow water in through those vents? Obviously not all cars have this problem.

 

[z4pilot]

But what is going wrong to allow water in through those vents? Obviously not all cars have this problem.

They have a foam rubber seal that seems to degrade over time. One owner reported that his had been installed upside down - presumably at the factory, causing the ventilation flaps to allow water past.