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      03-05-2020, 02:40 AM   #1
GOF_430d
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4 Series convertible roof leak

On the passenger side, water is getting in to the area above the passenger seat between the headliner and the roof itself. My wife noticed the water pouring [her words] in when I braked suddenly. The headliner on the passenger side doesn't fit as well as it does on the drivers side so I got my hand and found the surfaces to be wet. There is a noticeable draught from this area.

Any ideas what I can do to remedy this? The water ingress, not the draught.
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      03-05-2020, 05:45 AM   #2
999rigger
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How old is the car? Roof seals shouldn't fail on newish cars so i would get BMW involved.
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      03-05-2020, 06:57 AM   #3
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999rigger the car is 4 years old and is due an oil change in 3k miles and my intention [assuming I remember] is to ask BMW about it.

But as I have just paid to have the rear wings drained of water [the roof drain channels were blocked] and additional holes drilled, I'm not holding out much hope that they will regard it as a warranty item.
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      03-05-2020, 07:40 AM   #4
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I had a leaking boot seal last year but no roof leaks so far touch wood. Have you checked the seals for cuts/misalignment?
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      03-05-2020, 07:50 AM   #5
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Quote:
Originally Posted by GOF_430d View Post
999rigger the car is 4 years old and is due an oil change in 3k miles and my intention [assuming I remember] is to ask BMW about it.

But as I have just paid to have the rear wings drained of water [the roof drain channels were blocked] and additional holes drilled, I'm not holding out much hope that they will regard it as a warranty item.
I'm having an issues with my F33 16 plate, sound like I can hear water in the rear side panels. Think the drain holes are blocked.

Seems to be a common problem on the convertible BMW sadly. Was going to take it in to BMW but know there charge a stupid price to have a look, something that sounds like a design issue.
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      03-05-2020, 09:45 AM   #6
GOF_430d
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JeffBMW4Series, BMW charged me £174 to look and rectify the problem.

Though time will tell whether the problem has been fixed, though the car doesn't steam up as much now [its been a day since the fix] so the signs are promising
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      03-07-2020, 06:33 AM   #7
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Quote:
Originally Posted by GOF_430d View Post
JeffBMW4Series, BMW charged me £174 to look and rectify the problem.

Though time will tell whether the problem has been fixed, though the car doesn't steam up as much now [its been a day since the fix] so the signs are promising
Took mine in thgis morning, cleared drtain holes and emptied water, charged me £60 so happy with that.
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      03-07-2020, 07:38 AM   #8
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Quote:
Originally Posted by JeffBMW4Series View Post
Quote:
Originally Posted by GOF_430d View Post
JeffBMW4Series, BMW charged me £174 to look and rectify the problem.

Though time will tell whether the problem has been fixed, though the car doesn't steam up as much now [its been a day since the fix] so the signs are promising
Took mine in thgis morning, cleared drtain holes and emptied water, charged me £60 so happy with that.

I had this same issue and this also damaged my HK Amp in the boot. Besides emptying it did they do any further work to prevent this happening in the future?
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      03-07-2020, 08:52 AM   #9
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I had this same issue and this also damaged my HK Amp in the boot. Besides emptying it did they do any further work to prevent this happening in the future?
Just cleared the drainage holes, removed panel and drained the water. It seems like it's a big issue with BMW's from reading. I've read other have had holes drilled to help drainage.

I'll keep an eye on mine now.
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      03-09-2020, 09:55 AM   #10
999rigger
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Hi how do you clean the drain holes?
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      11-04-2020, 03:25 AM   #11
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Quote:
Originally Posted by 999rigger View Post
I had a leaking boot seal last year but no roof leaks so far touch wood. Have you checked the seals for cuts/misalignment?
My 435d Vert seems to have sprung a leak in the boot. Collecting in the small RH side tray. Seems to be dripping in from the boot seal at the RH corner immediately below the lower corner of the rear window.

What was the source of your boot leak and how was it fixed?

Cheers
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      11-04-2020, 06:51 AM   #12
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Main dealer sorted it by fitting a new seal.
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