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Leaky Sunroof?

David MKVII

New member
So as I live in BC where we get a lot of rain, but I didn't think that would be a problem with a brand new car!

Driving to work this morning water starting dripping onto my right hand and onto the console by the shifter and the various buttons (fudge).

Headline under the sun visor is damp to touch now too. Waiting for the stealership to call me back to get the car in. One of the reasons I bought the car was for build qualify and durability, which after only 10k kms is lacking.

Sorry. Rant over.


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Firstboost

Go Kart Champion
Location
East Bay Area
Not a rant. A just response to an issue I wouldn't be very happy with either. While not in the world of MB/BMW build quality, that is unacceptable. Hopefully it's just an improperly seated seal for the sunroof. I'd make sure they also clean up the mess so you don't have to worry about molding if the water got into your headliner.
 

donp

Ready to race!
Location
Georgia
This is one of the reasons I bought an S, no sunroof. Most likely the drain tubes got clogged with crap and now it's seeping through the headliner. FYI, ALL sunroofs leak. It's a matter if they're draining out properly.
 

wordsthatiwrote

Ready to race!
Location
Ohio
So as I live in BC where we get a lot of rain, but I didn't think that would be a problem with a brand new car!

Driving to work this morning water starting dripping onto my right hand and onto the console by the shifter and the various buttons (fudge).

Headline under the sun visor is damp to touch now too. Waiting for the stealership to call me back to get the car in. One of the reasons I bought the car was for build qualify and durability, which after only 10k kms is lacking.

Sorry. Rant over.


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Not all dealerships are bad. I had a dealer cover the cost of a ticket I received because of them not putting the correct plate on the rear of my car.

I am partially to blame for not checking but the manager offered to cover the cost of the ticket.
 

David MKVII

New member
Bit of an update. Car was back in the dealership last week and couldn't find the leak. Last night on my way home from work the leak started and then this morning it started again...




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David MKVII

New member
The dealership have done a temporary fix until the parts come in for the sunroof. Not sure exactly what the issue was as the service guys had left by the time I got back to the dealership to pick the car up. No issues since last Friday so far.


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UtopianSnucka

New member
Location
Albany, NY
The dealership have done a temporary fix until the parts come in for the sunroof. Not sure exactly what the issue was as the service guys had left by the time I got back to the dealership to pick the car up. No issues since last Friday so far.


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Hey there David, I am encountering what seems to be an identical issue as the one you are describing here - those pics of the leaks might as well have been taken in my car. I already had mine in, as the ceiling above the front passenger seat was soaked after a heavy rain, and they said it was due to the sunroof drainage lines not being connected properly. They addressed that, but I am still getting drips/leaks out of the right side buttons of the ceiling console and occasional dampness in the ceiling up near where the windshield meets it on the passenger side.

I was wondering what VW fixed/what the issue ended up being per your service records from the recent visit?
 

David MKVII

New member
Hey there David, I am encountering what seems to be an identical issue as the one you are describing here - those pics of the leaks might as well have been taken in my car. I already had mine in, as the ceiling above the front passenger seat was soaked after a heavy rain, and they said it was due to the sunroof drainage lines not being connected properly. They addressed that, but I am still getting drips/leaks out of the right side buttons of the ceiling console and occasional dampness in the ceiling up near where the windshield meets it on the passenger side.



I was wondering what VW fixed/what the issue ended up being per your service records from the recent visit?


Coincidentally I just got the leaky sunroof fixed today along with a service. Here's the description and part number from my invoice. Hope this solves your issue too as it annoyed the hell out of me when it rained.

Dave




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imthanick_a

Drag Race Newbie
Location
Ohio
Coincidentally I just got the leaky sunroof fixed today along with a service. Here's the description and part number from my invoice. Hope this solves your issue too as it annoyed the hell out of me when it rained.

Dave




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Glad to see someone got a resolution for this. Mine leaks through the passenger visor light as well. Guess I have to stop in to the dealer and get it fixed. Was hoping it was just a clogged drain tube

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joesid

Ready to race!
I noticed two different leaks today. Leading edge of headliner is damp above rear view mirror and continues over to sun visor mounts. The second area (and wettest) is where the A-pillar meets the roof. Both on driver side. It's clearly a warranty issue, but would like to do my best to figure out the source before letting them rip stuff apart.....

Does this sound like a sunroof or windshield issue?

Thanks
 

imthanick_a

Drag Race Newbie
Location
Ohio
I noticed two different leaks today. Leading edge of headliner is damp above rear view mirror and continues over to sun visor mounts. The second area (and wettest) is where the A-pillar meets the roof. Both on driver side. It's clearly a warranty issue, but would like to do my best to figure out the source before letting them rip stuff apart.....

Does this sound like a sunroof or windshield issue?

Thanks
Did some poking around yesterday and found why it leaks. The inner gasket when you open the sunroof does not seal in where it slides into the slot to locate it. When the water reservoir fills up because the drains can't keep up, it leaks through where the gasket is pressed into the groove and then through slots where there are snap to locate the headliner, then leaks into the car right above the mirror.

I found this then promptly cancelled my service appointment because it seems like something I can fix myself with liquid gasket.

Open your sunroof and pour a lot of water into the reservoir where the drains are, then watch the inside edge of the gasket to see where it leaks through the slots. I will upload some pictures after I get home from work

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joesid

Ready to race!
Did some poking around yesterday and found why it leaks. The inner gasket when you open the sunroof does not seal in where it slides into the slot to locate it. When the water reservoir fills up because the drains can't keep up, it leaks through where the gasket is pressed into the groove and then through slots where there are snap to locate the headliner, then leaks into the car right above the mirror.

I found this then promptly cancelled my service appointment because it seems like something I can fix myself with liquid gasket.

Open your sunroof and pour a lot of water into the reservoir where the drains are, then watch the inside edge of the gasket to see where it leaks through the slots. I will upload some pictures after I get home from work

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That would be much appreciated! I'm just in the early stages of diagnosing mine. I went out and opened the sunroof to view the seal. So what you're saying is that instead of water coming in between the seal and the roof/glass, it's coming in under the seal itself? The only reason I even noticed the leak is because 1 single drop of water landed on my hand while I was driving to work this morning.


Edit:
I was able to go out and locate the drains. My commute consists of extremely steep hills. I'm wondering if that causes the water to pool away from the drains. My gut is telling me that mine only leaks while I'm driving. It's been raining non-stop and I park outside. If it were a constant leak, I think my interior would have been soaked this morning.
 
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imthanick_a

Drag Race Newbie
Location
Ohio
That would be much appreciated! I'm just in the early stages of diagnosing mine. I went out and opened the sunroof to view the seal. So what you're saying is that instead of water coming in between the seal and the roof/glass, it's coming in under the seal itself? The only reason I even noticed the leak is because 1 single drop of water landed on my hand while I was driving to work this morning.


Edit:
I was able to go out and locate the drains. My commute consists of extremely steep hills. I'm wondering if that causes the water to pool away from the drains. My gut is telling me that mine only leaks while I'm driving. It's been raining non-stop and I park outside. If it were a constant leak, I think my interior would have been soaked this morning.
Mine is the opposite, it leaks when parked in the rain. Not a problem when I'm home in the garage, but at work I'll get a puddle on my seat.

You are correct, it's the inner seal, not the one that seals around the edge of the glass. You can actually pull the inner seal out of the groove that it is supposed to seat in and see how loose it is. I watched water pour underneath and out of a few slots that are in the plastic with ease.

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imthanick_a

Drag Race Newbie
Location
Ohio
Update: I think my initial diagnosis was incorrect. In the first pic you can see where water overflowed during my tests, then the arrow points to where it got through to. In the second pic you can see where I think the real issue is. The huge gap right in the spot where water settles during rain... I think I can still fix this myself and will try another day.

If enough water gets past the primary seal around the top and into the reservoir that it can fill up to the other gasket in the first pic, that also still might be an area of concern. But for now, I think I'll just address the gap in the second pic and see if that helps


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joesid

Ready to race!
But for now, I think I'll just address the first place and see if that helps
When you say the first place? Do you mean the inner seal? Or outer?

I lifted the inner seal and was a bit shocked by how easily it lifts up. I know you're quite familiar with how it looks, but am attaching a pic I just took for others. I was planning on putting an RTV sealant or similar in that channel.


 

imthanick_a

Drag Race Newbie
Location
Ohio
When you say the first place? Do you mean the inner seal? Or outer?

I lifted the inner seal and was a bit shocked by how easily it lifts up. I know you're quite familiar with how it looks, but am attaching a pic I just took for others. I was planning on putting an RTV sealant or similar in that channel.


I meant the outer seal with the big gap, thanks for pointing that error out. I think I will take some liquid gasket of some sort and squeeze it into the gap

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