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E36/7 Z3 (1996-2002)
E36/7 Z3 Roadster, Z3 coupe, Z3 M Roadster and Z3 M Coupe talk with our gurus here.

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  #1  
Old 06-28-2009, 10:43 PM
01 M Roadster 01 M Roadster is offline
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Z3 M roadster 2001 - whistling

I don't know if any roadster owners experience a whistling above speeds 85mph+ with top up or down, with windows up or down, or at slightly lower and going against strong headwinds.

This is driving me nuts. Does anyone have an idea where that whistling is coming from?

I tried turning on the wiper to see whether the arms and/or blades that were causing it but that wasn't it.

Could it be from the side mirror(s)? The antennae? Where?
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  #2  
Old 06-29-2009, 03:41 AM
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Never had that problem at higher speeds. The antenna makes sense,easy to find out as they just unscrew out. I did have one of the air ducts come out where the road lamps would be,just clips back in. At thoses speeds you could always crank the volume up and only hear the sub woooofer
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  #3  
Old 06-29-2009, 07:33 AM
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Could be the front bumper, if a light or something came unlogged.

Could be the rubber stripping across the top of the windshield frame. Use Gummi p-Fledge to restore it.
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  #4  
Old 06-29-2009, 09:12 AM
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The windshield black plastic surround can buzz at 82 mph and above. I think the leading edge on the top strip is vibrating. It's ocurred in other Z3's as well.

A re-glue fixes it -- although mine got fixed by a windshield replacement for other causes.
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  #5  
Old 06-29-2009, 01:24 PM
elcid79 elcid79 is offline
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check the top part over the small forward door window seal. Mine has wistled before, and i just jiggled it and it stopped. try cleaning them.
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  #6  
Old 06-29-2009, 01:32 PM
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Quote:
Originally Posted by 01 M Roadster View Post
I don't know if any roadster owners experience a whistling above speeds 85mph+ with top up or down, with windows up or down, or at slightly lower and going against strong headwinds.

This is driving me nuts. Does anyone have an idea where that whistling is coming from?

I tried turning on the wiper to see whether the arms and/or blades that were causing it but that wasn't it.

Could it be from the side mirror(s)? The antennae? Where?
Common problem caused by air leak in the seal at the bottom of your windscreen, this has been reported frequently by others and is no cause for concern but very disconcerting
when it happens and often sounds like it is comming from behind the dash.
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  #7  
Old 07-01-2009, 12:31 PM
01 M Roadster 01 M Roadster is offline
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I'll be monitoring all each time I use the car and will investigate each as they occur.

Thanks for all your input.
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  #8  
Old 08-03-2009, 04:02 PM
01 M Roadster 01 M Roadster is offline
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I stumbled upon a video that exactly tells my story about the whistling. Wait until the driver hits high speed and you will hear the whistling build up -- about 1/3 into the video.

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Last edited by 01 M Roadster; 08-03-2009 at 04:06 PM.
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  #9  
Old 08-03-2009, 05:52 PM
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The whistle in that video is most definitely the windshield surround trim.
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  #10  
Old 08-03-2009, 06:28 PM
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cngizbleevng cngizbleevng is offline
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Yeah, there is a BMW TSB out on that. Entails regluing the surround as has already been mentioned.
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  #11  
Old 08-03-2009, 07:12 PM
01 M Roadster 01 M Roadster is offline
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Thank you for your input.

After searching for that particular TSB you mentioned, I could not find it. I only found (for '01 roadsters):

(1) Electrical System
(2) Engine and Engine Cooling System

Would somebody know a better site for that particular TSB or better cut and paste it here.

Thanks.
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  #12  
Old 08-04-2009, 04:28 PM
rwsams rwsams is offline
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I have exactly the same problem! Love to hear the details of a fix.

Bob S.
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  #13  
Old 08-04-2009, 04:49 PM
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When mine was whistling (I forget how many windshields ago), I just put some narrowly cut pieces of double-sided carpet tape under it. I have no idea how long it would last since my windshield was replaced not long afterward. But it worked for the time it was in there. With no plans to install a new windshield anytime soon, I'd use a small amount of weatherstrip adhesive.
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  #14  
Old 06-14-2010, 01:53 PM
neggen neggen is offline
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Any pics of the winshield seal repairs that stopped the whistle?

Hi,

I have the same whistle as shown in the Youtube video. High speed only, top up and/or down, especially bad in cross winds. For me, in enough wind I can get it between 65-80 MPH. I was on a 4 hr drive this weekend and it was unbearable for 5-15 minute stretches.

The reason I was hoping for pics is that my Bright Red 1997 has the all black windshield and A pillar so I'm totally sure what I should be doing.

To the poster who used the 1/8" rubber cord, did it work long term? Can you share a pic?

Thank you!

1997 Z3 2.8/5spd
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  #15  
Old 06-15-2010, 08:11 PM
01 M Roadster 01 M Roadster is offline
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i've replaced my seals recently and the whistling is less annoying than before but it still is there.

this is where i observed the whistling is coming from. click on the image below to view larger image.
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Last edited by 01 M Roadster; 06-15-2010 at 08:13 PM.
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  #16  
Old 06-20-2010, 08:45 PM
neggen neggen is offline
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Interesting - just the top corner whistles?

Thank you for the pic. So it is just the top corner? Not the whole seal? Good to know. I poked around mine this weekend, but haven't made any changes/mods yet while I size up the problem more.
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  #17  
Old 06-21-2010, 12:33 AM
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Umm, 01 M roadster is pointing to the wrong part for the problem in the video. It's part #1. Part #8 shouldn't whistle with the top down.

The problem is that air gets between the glass and the front edge of part #1 and makes a sound like the childhood trick of blowing a wide blade of grass between your thumbs. It's a reed vibration type of noise. Carpet tape worked for me, but if you don't plan on replacing part #1 anytime soon (windshield is in good shape), I'd use Permatex 81158 (black) or 80050 (clear).
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  #18  
Old 06-21-2010, 09:14 PM
neggen neggen is offline
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Ah - it is the outer seal

Thanks for the clarification as I do get it with the top down. I went and wiggled my finger under the window seal (#1 in the pic) and can see how this could possibly collect air and whistle.

The Permetex part numbers are very helpful!
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  #19  
Old 07-09-2010, 10:58 PM
01 M Roadster 01 M Roadster is offline
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Quote:
Originally Posted by dwm View Post
Umm, 01 M roadster is pointing to the wrong part for the problem in the video. It's part #1. Part #8 shouldn't whistle with the top down.

The problem is that air gets between the glass and the front edge of part #1 and makes a sound like the childhood trick of blowing a wide blade of grass between your thumbs. It's a reed vibration type of noise. Carpet tape worked for me, but if you don't plan on replacing part #1 anytime soon (windshield is in good shape), I'd use Permatex 81158 (black) or 80050 (clear).
my bad. i should have been a tad more detailed. as i said, it was at the corner of the a-frame that i stuck my finger in the seal's hole and the whistling tone changed, indicating that there was air rushing through that area. however, this did not mean that the remedy would be applied at that area.

what i did to remedy the whistling was to take a long string about the thickness used in your mom's pot roast -- about 1/8 inch. you stick the string (starting at the bottom right (or left) and up and around to the other side) between the windshield and its seal. you can pry it open with your fingernails (i had at that time, about 1/8 inch long sturdy nails) and push the string along the inside of the seal as far as you can. you'll notice that you can see and feel the edge of the glass; and this is where the string should sit. for extra measure, i also placed another string on the outer side of the windshield seal where the seal meets the metal a-frame using the same technique.

after, i took the car out for a test and ran at different speeds -- 80mph - 120mph, and held it for 10-15 seconds at different speeds. the whistling is gone.

woot woot.
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Last edited by 01 M Roadster; 07-09-2010 at 11:18 PM.
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  #20  
Old 07-09-2010, 11:02 PM
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scotte36 scotte36 is offline
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Quote:
Originally Posted by 01 M Roadster View Post
my bad. i should have been a tad more detailed. as i said, it was at the corner of the a-frame that i stuck my finger in the seal's hole and the whistling tone changed, indicating that there was air rushing through that area. however, this did not mean that the remedy would be applied at that area.

what i did to remedy the whistling was to take a long string about the thickness used in your mom's pot roast -- about 1/8 inch. I stuck the string starting at the bottom right (or left) outside of the windshield seal. you can pry it open with your fingernails (i had at that time, about 1/8 inch long sturdy nails) and push the string along the inside of the seal as far as you can. you'll notice that you can see and/or feel the edge of the glass; and this is where the string should sit into. i also placed another string on the outer side of the windshield seal where the seal meets the metal a-frame.

I took the car out for a test and ran 80mph - 120mph and held it between 10-15 seconds at different speeds. the whistling is gone.

woot woot.
Rule number one never ever stick your finger in a seals hole

Last edited by scotte36; 07-09-2010 at 11:06 PM.
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  #21  
Old 07-09-2010, 11:05 PM
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  #22  
Old 07-09-2010, 11:19 PM
01 M Roadster 01 M Roadster is offline
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  #23  
Old 07-11-2010, 03:12 PM
jrich4411 jrich4411 is offline
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Actually, the real reason your car is whistling is because it doesn't know the words!
(OK - I'll stick to my day job)
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