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Official wind noice service bulletin

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Official wind noice service bulletin

 
Old 10-24-2015, 04:26 AM
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Exclamation Official wind noice service bulletin

This was released in 23/10, unfortunately only in German, this might help for someone who might want to try some trial and error and dont want the hassle of visiting the dealer.

"24.10.2015 10:01
© Copyright Daimler AG Seite 1/2
Wind-, bzw. Umströmungsgeräusche im Bereich der Türen
Themen-Nummer GI72.10-P-061763
Version 3
Konstruktionsgruppe 72.10 Vordertür
Stand 23.10.2015
Gültigkeit TYP 205
Änderungsgrund Hinweis entfernt.
Beanstandung:

Wind-, bzw. Umströmungsgeräusche im Bereich der Türen.
Ursache:

Umströmungsgeräusche, Reifengeräusche.
Durchschallende Störgeräusche werden als zu laut empfunden.

Abhilfe:

1. Türeinstellung überprüfen. Dabei zusätzlich den Übergang der Türen zur A-Säule, siehe Bild 1, überprüfen ggf.
durch Einstellung der Türen in -y- anpassen.

2. Blende Außenspiegel auf Parallelität und richtigen Sitz prüfen, siehe Bild 2, ggf. einstellen.

3. Rippe an Dichtung Spiegeldreieck gemäß Pfeile, siehe Bild 3, auf Knickstellen überprüfen ggf. erneuern.

4. Schäumling auf 30mm ablängen und an Bordkantenzierstab vorne links und rechts entsprechend Kreis, siehe Bild
3 und Bild 4 anbringen.

5. Probefahrt durchführen. Bei unverändertem Geräuschniveau: weiter mit Schritt 6.

6. Mit einem geeigneten Klebeband Fugen im Bereich der vorderen Türen, Außenspiegel, Windschutzscheibe, Motorhaube,
siehe Beispiel Bild 5, Bild 6, Bild 7 abkleben. Probefahrt durchführen.

7. Bei unverändertem Geräuschniveau: Verbau der vorderen Seitenscheiben mit Code 851 (Akustikpaket).

Anhänge

Datei Beschreibung

Bild 1.JPG Bild 1
Bild 2.JPG Bild 2
Bild 3.JPG Bild 3
Bild 5.JPG Bild 5
Bild 6.JPG Bild 6
Bild 7.JPG Bild 7
Bild 4.JPG Bild 4

24.10.2015 10:01
© Copyright Daimler AG Seite 2/2

Teile

Teilenummer ES1 ES2 Bezeichnung Menge/
Anzahl

Hinweis EPC

A 205 725 23 00 Seitenscheibe Tür links 1 X
A 205 725 18 00 Seitenscheibe Tür rechts 1 X

Arbeitsnummern/Schadensschlüssel
Arb.-Nr. Arbeitstext Zeit Schadensschlüssel
Hinweis
72A01 39
72N01 39
WIS-Referenzen
Dokument-Nummer Titel Hinweis Zuordnung
AR72.10-P-1900LW Kurbelfenster an der Vordertür
aus-, einbauen
Abhilfe
"



Attached Pictures.

http://s3.postimg.org/kmhja4vlv/Bild_1.jpg
http://s3.postimg.org/4qsp6u51f/Bild_2.jpg
http://s21.postimg.org/9cbftm093/Bild_3.jpg
http://s21.postimg.org/mj0vt4vyf/Bild_4.jpg
http://s24.postimg.org/aashp5nn9/Bild_5.jpg
http://s7.postimg.org/54iq60k4r/Bild_6.jpg
http://s30.postimg.org/fk02aflr5/Bild_7.jpg

Last edited by Glyn M Ruck; 12-12-2015 at 02:17 PM.
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Old 10-24-2015, 04:28 AM
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Would be great if someone with skills in German could translate, my school German and Google translate only takes me so far

Although it seems like laminated winows is part of the solution.
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Old 10-24-2015, 05:22 AM
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Very interesting Vic. thanks for posting this. Quick summary:

1. Check the front door fitment and alignment; especially the transition of the front doors to the A pillar (see pic 1). Adjust door as required.
2. Check the outer panel of the mirror to ensure it is seated properly (see pic.2) (i.e. fitment is parallel with the door frame).
3. Check the sealant ridge for kinks along the arrows indicated in pic.3.
4. Trim a 30mm foam piece and fit it to the kerb-side trim piece on the front left and right. Refer to circled area in pic 3 and also pic 4.
5. Perform a test drive. Should noise signature not be changed, continue onto step 6.
6. Using a suitable adhesive tape, seal the gaps in the area of the front doors, windscreen, bonnet as indicated in pic.5, pic.6, pic7. Perform another test drive.
7. Should there be no change to the noise: Exchange the front side windows with Code 851 (Accoustic packet).


If you need help with specific words,let me know.

Last edited by DBOC205; 10-24-2015 at 07:23 PM.
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Old 10-24-2015, 06:08 AM
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Thanks. I'll check with my dealer in Norway.
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Old 10-24-2015, 06:21 PM
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Great, thanks Vic!
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Old 10-24-2015, 08:54 PM
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so...do everything possible to not change the window glass, and then change the glass if none of it helps. lol
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Old 10-25-2015, 03:21 AM
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Originally Posted by joshg1001 View Post
so...do everything possible to not change the window glass, and then change the glass if none of it helps. lol

Daimler has to pay for labour done by dealers as well, so this is not a matter of money, if the noice can be reduced ever so slightly before fitting the glass the end result will be even better.
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Old 10-25-2015, 03:40 AM
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Well I checked the first 2 things last night in the garage. And they looked good on both doors for me. I'm pretty sure I'm gonna need the glass, cause when I just very slightly pull down both front windows, the noise is identical, just a tiny bit louder.
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Old 10-25-2015, 03:43 AM
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Remember that the glass is just a half *** solution, the problem is still there, it is just masked by the sound proofing.
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Old 10-25-2015, 03:49 AM
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Originally Posted by vic viper View Post
Remember that the glass is just a half *** solution, the problem is still there, it is just masked by the sound proofing.
Yeah I was thinking that too. But what could be the problem? Cause from my sound in the car, it sound either like the Windows should go higher up. Or maybe that the glass isn't seated tightly enough in its top position, so it doesn't seal?

That way a thicker glass maybe sits better and seals in at the top position.
Man I wish you lived a little bit closer Vic..
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Old 10-25-2015, 04:24 AM
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The Acoustic glass isnt thicker, it is the same thickness as the regular glass.

There is a plastic sound proofing wedged (laminated) in between two panes of glass.
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Old 10-25-2015, 04:30 AM
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Okey, maybe then the regular glasses are slightly miss-shaped? Or the doors? I don't know, all I know is that this is really really annoying. And the forum-members that have had accoustic glasses fitted are pleased with the outcome. And I just want a normally quiet new car that one would expect from a price tag like this. I'm not expecting a S-class or 7-series. Just don't want my car sounding like my windows aren't fully closed.

My first s205 didn't suffer from this problem.

Last edited by IstvanC; 10-25-2015 at 04:45 AM.
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Old 11-01-2015, 05:41 PM
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Has anyone seen an english language version of this bulletin yet? I did forward the German version to my US dealer who was going to send it on to their area rep. Seems like a ray of hope for those of us with the noise issues but it also seems like the folks getting the acoustic side glass are mostly in Europe.
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Old 11-02-2015, 01:53 AM
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Any link for the Service Bulletin is appreciated !!
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Old 11-02-2015, 02:24 AM
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This is not official yet, this info is only available for authorized dealers.
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Old 11-02-2015, 11:46 AM
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I haven't got the noise (YET), but I have spotted one thing.


I was driving in the wet the other day and spotted that the water in the lower front of the window, just by the wing mirror was eddying in a whirlwind type of way.


When I looked at the passenger side (left of the car for me), it wasn't doing it.


So I'm wondering if the design of the wing mirror and its connection to the door is making the wind stick and eddy, which then makes the noise you are all hearing.


Just an observation from my own car and subsequent thoughts, which may be completely off left field
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Old 11-02-2015, 12:17 PM
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I had acoustic glass fitted last friday and today I took a ride on a motorway. I could still hear a little bit of noise. I tried to locate where the noise came from and in my opinion it came from the mirror.
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Old 11-02-2015, 12:23 PM
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Might be worth blocking off the gap between car and mirror with something and see if you still get the noise. Also keep an eye out on what the water does around it when it gets wet, to see if it does actually eddy
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Old 11-02-2015, 12:35 PM
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Originally Posted by HorshamRebel View Post
Might be worth blocking off the gap between car and mirror with something and see if you still get the noise. Also keep an eye out on what the water does around it when it gets wet, to see if it does actually eddy
Ok, thank`s. I will try these things.
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Old 11-02-2015, 12:37 PM
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Just make sure you only block it off temporarily and not with something that will hurt the paint or fly off at speed
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Old 11-02-2015, 01:14 PM
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Originally Posted by HorshamRebel View Post
Just make sure you only block it off temporarily and not with something that will hurt the paint or fly off at speed
Ok, good point.
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Old 11-02-2015, 02:16 PM
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I left the car in today for the wind noise TSB. All done except fit acoustic glass as tech was happy with result of the other modifications. I do agree the wind buffeting is definitely less than before and that was my biggest gripe. Now it just sounds like the door from my Ford Fiesta installed on my C300 - it does not have enough sound proofing for a premium vehicle. Although the car generated wind noise is less, road roar / engine noise from other cars passing is too noticeable - no doubt why other premium vehicles like Audi A6 come with acoustic glass as standard. I might just order the acoustic glass panes from the parts dept and have them fitted myself.
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Old 11-02-2015, 02:22 PM
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It's tempting to think this is a premium car but in truth it's quite low cost. £27k in the uk for the entry car, it's not hugely more than equivalent run of the mill medium sized cars and it certainly cheaper than BMW after discounts.

I think they've done well for its cost, it's no £60k S class but then it's also half the price.

Having said that, it does have a lot of wind noise at speed so the fact they've now put in the acoustic glass on mine is a great outcome and notably improves the feel of the car.
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Old 11-02-2015, 02:49 PM
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Just curious to read all this talk about acoustic glass from users in Europe. What about the US? has anyone need or install them ?
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Old 11-03-2015, 10:26 AM
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So, they've put in the acoustic glasses for me today as well, I was the first to receive them in my town.

It did get better, you can't hear it as clearly from the front windows anymore, but its still there.
BUT, now both me and the MB tech agreed that we hear a lot of windnoise from the rear. From the rear glasses it sounds like.

So, for me, the problem is still there, just that the acoustic glass reduced the level of noise. But there is still something making the noise.

I think I can guess some of the reason for this problem, MB, to save weight has put in 4mm glasses, and what i'we read, it used to be 5mm. Off course 5mm is 25% thicker then 4mm. And that would do a lot for reducing noises. (i'm not 100% sure but maybe someone can check?) Cause I can even feel that when cars are passing me on the highway, or I'm passing them. I hear their tire-noises to much.. Pretty annoying!

So thats it for me this time. I think I will try to continue this issue with MB. They need to adress this and solve it. I test drove the GLC today for a good hour... Surprise surprise, it was really noisy. Wind noise and on those bigger tires even more tire-noise. I'm pretty disappointed for cars that cost over 50.000€ list price here in Sweden.
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