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Discussion Starter · #1 ·
Hello 7ers,
If you have looked at my previous posts i'm the same person who keeps reporting windnoise issues. Well I took my car in for the third time to a different dealer this time and a bmw tech drove with me. They always acknowledge a wind leak coming somewhere from my windshield area. They had the car for a week and after a week later when i got my car back, guess what i still have some windnoise coming from the windshield at speeds above 60mph. I have a 06 750li and this problem is absolutely killng me. This time I reported it to BMWNA and they told me to take it back to the dealer because the dealer is their eyes and ears. What do you think will happen now? Any other 750li owners have windnoise issues here besides the moonroof problem.
Let me know. Thanks
 

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It is your sunroof seal bro! Very common on our cars. It will fix it for a year or so and then come back. Bad design, dealer will charge you $220 installed if you are out of warranty
 

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E65/E66 Helper Man.......
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op states that its coming from the windshield... i havnt heard of that before, the sunroof is common but you can usually get rid of the noise by closing the cover for it... windshield noise... have you checked to make sure it is an oem windshield, and wasnt replaced at one point?
 

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IF it were me I would put some masking or blue painters tape across the top of the windshield. drive and listen (better yet get a Db readout ) If you still hear it tape one side. repeat until the window is taped all over the edges. Then you can focus on what part of the window poses the problem
 

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Discussion Starter · #5 ·
I understand the sunroof problem but in my case its not the culprit because no matter if my visor is open or closed the noise levels are the same. They actually fixed my sunroof problem because it was there at one point. Mine is coming somewhere from the top and from the sides of the windshield. I searched alot posts here and couldnt find a post like mine. I guess im the rare unfortunate one here with windshield problem. BTW my windshield is original bmw windshield and thats the same said from my dealer as well who first checked to see if my windshield has been replaced before.
 

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I have the same issue, and it drives me crazy!!!!! when it gets warmer I will resolve this issue when it gets warmer, I have brought it to dealer 4 times changed seals on the sunroof, adjustments etc.... they have not been able to fix the problem, I know it's coming from the windshield from the top and it seems thats its coming from the passenger side.
 

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I had the same problem on my 2006 750Li.. Two trips to solve the problem.. On trip one, the dealer adjusted the sunroof glass all round; this did not help.. On trip the dealer changed the seal.. I can now drive with the shade open, and the car is perfectly quiet.. I live in a cold climate; i have to do this every 2 years or so.. Hope this helps..
 

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Don't give up. I went through the same fiasco. I brought the car in 5 times and they replaced everything related to the sunroof (seal, gasket, sunroof glass, sunroof cartrige) and nothing fixed it. Finally, they told me last month that there was a service bulletin out about the glass in the windshield. Apparently if it is even a millimeter out of alignment, you get wind noise. Long story short, they brought in a specialist who measured and said it was off by just a hair around the top of the glass. They replaced my windshield last month and now it is perfect, no wind noise whatsoever. The key was when I noticed what you noticed, closing the sunshade didn't make any difference in the noise. As much as we like to complain, I really appreciated how determined they were to fix the problem and never gave me a hard time about coming back time and time again.
 

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Discussion Starter · #10 ·
Don't give up. I went through the same fiasco. I brought the car in 5 times and they replaced everything related to the sunroof (seal, gasket, sunroof glass, sunroof cartrige) and nothing fixed it. Finally, they told me last month that there was a service bulletin out about the glass in the windshield. Apparently if it is even a millimeter out of alignment, you get wind noise. Long story short, they brought in a specialist who measured and said it was off by just a hair around the top of the glass. They replaced my windshield last month and now it is perfect, no wind noise whatsoever. The key was when I noticed what you noticed, closing the sunshade didn't make any difference in the noise. As much as we like to complain, I really appreciated how determined they were to fix the problem and never gave me a hard time about coming back time and time again.
Finally some hope. You have no idea how relieved I am to read your message. I hope this will help others like us out there. I have an appointment with the dealer coming up so i will keep everyone posted who is following this post for the next few weeks until this is resolved.
Thanks Again
 

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I read on here a while back that someone had wind noice and they traced it to a missing jacking pad which was letting wind in thru the underbody. He claimed this solved his problem is the windshield does not help. Search jacking pad and I think you will find it.

I just had my sunroof seal replaced too. SOOO much better now.
 

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Discussion Starter · #13 ·
I read on here a while back that someone had wind noice and they traced it to a missing jacking pad which was letting wind in thru the underbody. He claimed this solved his problem is the windshield does not help. Search jacking pad and I think you will find it.

I just had my sunroof seal replaced too. SOOO much better now.
:confused: I think you mean lift pads here. If so, guess what that post was by me. And no that did not fix the problem, it is my windshield and i know im not crazy.:eek:
 

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Discussion Starter · #14 ·
Alright so today in the suburbs of chicago it was kinda windy. I would say wind was blowing at speeds of about 10 to 20 mph. While driving my 7 at 45 mph, guess what my car had plenty of wind hissing inside my cabin, even if it is not windy my car would have very noticable windnoise at 60mph, and less noticable but still there windnoise at 50 mph, now I dont even want to talk about going 70 and above. My Dad's 1999 camry seems like it has less windnoise at these speeds, simply pathetic.:thumbdwn: Anyone here has problem as severe as me? And those of u who might be thinking I have super hearing power or I possess the ears of a dog or something, I had some else besides me who confirmed what I hear, and no that some one else was not a dog named Rocky:rofl:. Let me know what you think fellow 7ers.
 

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Alright so today in the suburbs of chicago it was kinda windy. I would say wind was blowing at speeds of about 10 to 20 mph. While driving my 7 at 45 mph, guess what my car had plenty of wind hissing inside my cabin, even if it is not windy my car would have very noticable windnoise at 60mph, and less noticable but still there windnoise at 50 mph, now I dont even want to talk about going 70 and above. My Dad's 1999 camry seems like it has less windnoise at these speeds, simply pathetic.:thumbdwn: Anyone here has problem as severe as me? And those of u who might be thinking I have super hearing power or I possess the ears of a dog or something, I had some else besides me who confirmed what I hear, and no that some one else was not a dog named Rocky:rofl:. Let me know what you think fellow 7ers.
i think it might be a good idea to take your car to a BMW certified body shop - in illinois, the dealership in Lake Bluff has a certified body shop and the dealer in Schaumburg is also certified. Go on a drive along with one of the body shop guys and have em diagnose the issue. If the body shop finds the vehicle out of spec, take that info to the service dept. along with their recommendations. i have some wind noise as well and thats my plan - the service dept usually NPF my wind noise concern.

Good Luck.
 

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I hesitate to post this in fear of being flamed for such a bonehead idea but I'm telling you. it worked for me.

I had the typical sunroof wind noise. I figured it was the sunroof seal. From what I've read, replacing the seal can fix the issue at least for a while. It occurred to me that the seal had either been squished or had shrunk over time causing a less than perfect seal.

While in the shop one day I came across an old bottle of transmission stop leak. I know that this stuff is supposed to work by reacting with the rubber seals and causing them to swell a little. I reasoned that this stuff might make my sunroof seal expand enough to improve the seal. I used a rag and just spread it on the inside edge and left it overnight. In the morning I wiped it off. That night, I applied it again and again in the morning, wiped it off. I used a mild solvent as it is sticky stuff.

The next highway trip my wife and I noticed a dramatic noise reduction.

CAVEAT: I've driven the car on the highway only a short time. I can't say for certain if this is worth it or if it really works long term. More time will tell.

OK, flame away.
 
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