Sunroof drain tubes

**edddo** · 5th July 2020, 01:23 PM

Originally Posted by edddo

Watching with interest - I had water on the passenger floor after heavy rain recently. I havent opened the sunroof on my D1 for years as I fear it will die while half open. It is the one thing I dont like about the car. Can someone enlighten me - the drains in the sunroof are there because the sunroof seals are designed to leak?

I opened the sunroof to access the drain holes. Poured some water in each one. It duly came out of the hole directly under the respective A pillars as per photo.

IMG_2379.JPG

So they are not blocked which is good.

Alternately this: The sunroof seals - 22 years and 50 million corrugations later - are not what they used to be. Is it possible that in very heavy rain that the leak around the seal exceeds the capacity of the drains to get it away..it then backs up into the pillars and finds a way into the car?
I wonder this because if I press around the seals with the roof in the closed position there is a fair amount of movement.
Took a short video but cant upload it here?

Otherwise I suppose it could be a leak around the windscreen somewhere as it is new as of about 12 months ago. But the corners look ok and where it didnt I have siliconed it. But I suppose it could be getting in anywhere along the top seal? I will get the hose and squirt some along there (ie hold the rubber seal away from the roof and add water) to see if I can see anything..another day.

DiscoMick · 5th July 2020, 03:10 PM

Have any parts of the seals gone hard?

**p38arover** · 5th July 2020, 04:16 PM

You checked the front drains, what about the rears?

**edddo** · 5th July 2020, 04:38 PM

Originally Posted by p38arover

You checked the front drains, what about the rears?

There are rears too? I wonder how you get access to them- because if they are at the rear corners they are obstructed by the roof itself when opened. Where do they drain to?
It is just a single sunroof (roughly 400X600 at a guess) .will it have rear drains?

**edddo** · 5th July 2020, 04:39 PM

Originally Posted by DiscoMick

Have any parts of the seals gone hard?

I would suspect so.

**p38arover** · 5th July 2020, 07:07 PM

Originally Posted by edddo

There are rears too? I wonder how you get access to them- because if they are at the rear corners they are obstructed by the roof itself when opened. Where do they drain to?
It is just a single sunroof (roughly 400X600 at a guess) .will it have rear drains?

Yep, there are. You can't see them with the sunroof in place.

Have a look at the pics of my P38A drains here: P38 wheel well water leak...bad

**edddo** · 6th July 2020, 06:43 AM

Originally Posted by p38arover

Yep, there are. You can't see them with the sunroof in place.

Have a look at the pics of my P38A drains here: P38 wheel well water leak...bad

Ah right.
I can get access to the lower parts of those hoses so I will see if I can push something up through them. Thanks for that. i knew the sunroof would be a pain one day.

**Pedro_The_Swift** · 6th July 2020, 07:01 AM

Originally Posted by edddo

Ah right.
I can get access to the lower parts of those hoses so I will see if I can push something up through them. Thanks for that. i knew the sunroof would be a pain one day.

all this is just a lack of service on my part.
the twin roofs are worth EVERY inconvenience.

**edddo** · 6th July 2020, 09:45 AM

Originally Posted by edddo

I would suspect so.

Has anyone replaced the window seals? They are readily available even on ebay.

**p38arover** · 6th July 2020, 11:11 AM

Originally Posted by Pedro_The_Swift

the twin roofs are worth EVERY inconvenience.

I hate sunroofs. We never use the ones on the Suby nor the L322.

The one in our Peugeot 405 took away a lot of the headroom.

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