Bobdog

Bobdog

Well-Known Member
Well after deciding i didnt need the in-car shower option any more, i deciced to play 'hunt the leak'. I was getting leaks from the sunroof handle area, the front interior light, the seat belt retractor area and the top of the windscreen. Not all at the same time!, it depended on how i was parked - uphill, downhill etc. with evidence of water staining all around the roof lining, even at the back. I started with sealing up the sunroofs, front first- made some difference but not much. Then rear. No difference really. I then decided to try the roof rail mounts as apparently this can be a source of leaks. However... i then discovered this-
20170304_125919.jpg

I sealed up the holes and the top of the rubber trim at both sides of the windscreen. Knowing it was going to rain this morning i wasn't going to have to wait long for a test. Sure enough, it lashed down for about 5 hours. Normally, the headliner at the top of the windscreen would be sopping wet after that much rain. Today? Dry. :D
So it seems i've cured a major source of water ingress. Worth checking if you have a leaky D2. To seal it and the sunroofs i used Geocel 'the works' sealant. Its better than mastic and apparently even works underwater!
 
Known area for leaks on a D2,

Has been mentioned , in fact there is a LR water ingress memorandum about it.............:D

I assume you did remove the sunroofs and seal the frame against the outside of the roof.

Cheers.
 
neilly said:
Known area for leaks on a D2,

Has been mentioned , in fact there is a LR water ingress memorandum about it.............:D

I assume you did remove the sunroofs and seal the frame against the outside of the roof.

Cheers.
Click to expand...
No i didnt. A previous owner had put a small bead of mastic around them. I temporarily put tape around the frame but it made no difference. I then sealed the glass which made some (but not much) difference. My next job would be to do that but to be honest, i dont think they were leaking much, if at all. The holes at the top of the windscreen were obviously letting in a lot of water and today its dry so i've stopped the worst of it with a quick squirt of sealant.
 
I think a lot of people (including myself) go straight for the sunroof as a leak source when it appears its probably more likely to be this.
 
If you are going to try and fix a leak , then the easiest way on a D2, is blitz them all. Do it once and do it all.

Front window corner, drip rail / roof sealant, as you have found , once roof lining is off you will generally see if there is a leak , the hole you show does not necessarily mean there is a leak, as the window should be sealed with windscreen glue against the frame. You can see the glue when you look at it from the inside. The leak is caused AFAIK from the sheet steel and the sealant not sealing correctly.

Roof rails, remove them and reseal them against outside of the roof.

Sunroofs, as said many times, drain plugs and pipes, outside edge of fraom against the roof, the seals are useless felt things, take frame out and seal outside of frame to the outside of roof.

Alpine windows are also known to leak.


@RyanDay1 ,

Just because the top outside seal does not close that hole up does not mean it is leaking.
Having said that , you are missing the finisher piece.

Cheers
 
neilly said:
If you are going to try and fix a leak , then the easiest way on a D2, is blitz them all. Do it once and do it all.

Front window corner, drip rail / roof sealant, as you have found , once roof lining is off you will generally see if there is a leak , the hole you show does not necessarily mean there is a leak, as the window should be sealed with windscreen glue against the frame. You can see the glue when you look at it from the inside. The leak is caused AFAIK from the sheet steel and the sealant not sealing correctly.

Roof rails, remove them and reseal them against outside of the roof.

Sunroofs, as said many times, drain plugs and pipes, outside edge of fraom against the roof, the seals are useless felt things, take frame out and seal outside of frame to the outside of roof.

Alpine windows are also known to leak.


@RyanDay1 ,

Just because the top outside seal does not close that hole up does not mean it is leaking.
Having said that , you are missing the finisher piece.

Cheers
Click to expand...
It was there when I bought it, but not secured, tis probably on some motorway somewhere!
I keep putting off fixin the leaks /:
 
neilly said:
If you are going to try and fix a leak , then the easiest way on a D2, is blitz them all. Do it once and do it all.

Front window corner, drip rail / roof sealant, as you have found , once roof lining is off you will generally see if there is a leak , the hole you show does not necessarily mean there is a leak, as the window should be sealed with windscreen glue against the frame. You can see the glue when you look at it from the inside. The leak is caused AFAIK from the sheet steel and the sealant not sealing correctly.

Roof rails, remove them and reseal them against outside of the roof.

Sunroofs, as said many times, drain plugs and pipes, outside edge of fraom against the roof, the seals are useless felt things, take frame out and seal outside of frame to the outside of roof.

Alpine windows are also known to leak.


@RyanDay1 ,

Just because the top outside seal does not close that hole up does not mean it is leaking.
Having said that , you are missing the finisher piece.

Cheers
Click to expand...
Part of the problem for me is time. I use it daily so unless its broken down, its one of those 'for another day' jobs. When i do rarely get time its usually bloody raining anyway! Also i wanted to do it in stages to find out exactly what the cause of the leak was.
 
Bought my D2 yesterday.
I have the two holes on the top corners of the front screen. Looks like the headlining will be coming out this summer. It needs the sagging headlining sorting anyway ;-) but will mastic these two holes asap
 
Bobdog said:
Well after deciding i didnt need the in-car shower option any more, i deciced to play 'hunt the leak'. I was getting leaks from the sunroof handle area, the front interior light, the seat belt retractor area and the top of the windscreen. Not all at the same time!, it depended on how i was parked - uphill, downhill etc. with evidence of water staining all around the roof lining, even at the back. I started with sealing up the sunroofs, front first- made some difference but not much. Then rear. No difference really. I then decided to try the roof rail mounts as apparently this can be a source of leaks. However... i then discovered this-
View attachment 118736
I sealed up the holes and the top of the rubber trim at both sides of the windscreen. Knowing it was going to rain this morning i wasn't going to have to wait long for a test. Sure enough, it lashed down for about 5 hours. Normally, the headliner at the top of the windscreen would be sopping wet after that much rain. Today? Dry. :D
So it seems i've cured a major source of water ingress. Worth checking if you have a leaky D2. To seal it and the sunroofs i used Geocel 'the works' sealant. Its better than mastic and apparently even works underwater!
Click to expand...
Please forgive me ignorance, but aren't those holes in the pictures the exits for the sunroof drain tubes?
Tim
 
@sherwood


No, drain tubes from the front sunroof frame go down the A pillars and come out on the floor, it is worth pouting water down them to check they have flow.

Cheers
 
neilly said:
@sherwood
No, drain tubes from the front sunroof frame go down the A pillars and come out on the floor, it is worth pouting water down them to check they have flow.

Cheers
Click to expand...

Ah! Thanks for that mate. I have just sealed the same holes up on mine, and then it occurred to me that I may have made a mistake. Thanks for clearing it up for me :)
 
Last edited:
sherwood said:
Please forgive me ignorance, but aren't those holes in the pictures the exits for the sunroof drain tubes?
Tim
Click to expand...
Hi mate, as Neilly says, they are not. They are the holes which allow your gutters to drain into the inside of your car via the windscreen headlining and anywhere else it can get in! :D
 
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