Acoustic Glass, Driver/Passenger Doors
Thread Starter
Super Member
Joined: Dec 2015
Posts: 812
Likes: 86
From: Springboro, OH
16 GLC 19 Volvo XC40 06Corvette Z06
Good tip.
The dealer used the vin to determine if my vehicle was supposed to have acoustic glass.
In certain countries its standard, others its optional and am guessing other countries it's not even available.
The dealer used the vin to determine if my vehicle was supposed to have acoustic glass.
In certain countries its standard, others its optional and am guessing other countries it's not even available.
Newbie
Joined: Jan 2016
Posts: 14
Likes: 0
From: New Kent VA
07 MINI Cooper S
Using VIN decoder...
No code 851 listed, glass not marked acoustic.
I do not see the line in the glass others have posted but the front glass seems thicker than the rear doors. Car seems quiet. No sunroof, few options.
No code 851 listed, glass not marked acoustic.
I do not see the line in the glass others have posted but the front glass seems thicker than the rear doors. Car seems quiet. No sunroof, few options.
Thread Starter
Super Member
Joined: Dec 2015
Posts: 812
Likes: 86
From: Springboro, OH
16 GLC 19 Volvo XC40 06Corvette Z06
My situation was my GLC had one window marked acoustic and the other not. The dealer had not seen this issue but confirmed my complaint and couple days later called me to say they were going to replace the non acoustic glass. I asked how they determined the vehicle was supposed to have acoustic glass. The response was by the vin.
MBWorld Fanatic!
Joined: May 2008
Posts: 2,236
Likes: 162
From: DFW
2022 E350 Diamond White Metallic, 2016 GLC300 Dakota Brown Metallic
I checked my VIN it had acoustic glass. My car has every thing on it including premium and interior package as well as driver assist and park assist
Member
Joined: Apr 2014
Posts: 79
Likes: 2
BMW
Was referring to US market, as its not a stand alone option, there has to be another option which gives you the glass (like premium package), just like the silver trim around the instrument cluster, which I believe comes down to code P22.
Member
Joined: Mar 2016
Posts: 182
Likes: 34
From: Peoria, AZ
2016 GLC 300
I don't think there is rhyme or reason for Mercedes using the acoustic glass. My car was pretty well loaded and didn't come with it yet, the other cars on the lot which had no big features all had it. Seems like they used whatever was lying around.
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Member
Joined: Mar 2013
Posts: 213
Likes: 29
From: Pennsylvania
2016 GLC300 4Matic
I think it's a supply/demand problem. I believe all GLCs were intended to have acoustic glass, but glass supply issues nixed that. It appears that earlier orders like mine came with acoustic while later ones were hit and miss as supplies failed to keep up with demand.
Thread Starter
Super Member
Joined: Dec 2015
Posts: 812
Likes: 86
From: Springboro, OH
16 GLC 19 Volvo XC40 06Corvette Z06
A job well done. The window operates flawlessly. And I cannot tell that anything on the vehicle was disturbed.
Haven't had the opportunity to drive at speed on the freeway so don't know if there is a discernible reduction in road noise. Will post when I know.
Zero $...accomplished under warranty.
Member
Joined: Apr 2014
Posts: 79
Likes: 2
BMW
I've confirmed the belief that ALL GLC's in the US should have had the acoustic glass but because of supplier issues they are installing whatever is on hand.
2 identical GLC's one with one without.
1 GLC base no options with, 1 GLC with 58k MSRP without.
Have noticed no wind noise issues without the acoustic glass.
2 identical GLC's one with one without.
1 GLC base no options with, 1 GLC with 58k MSRP without.
Have noticed no wind noise issues without the acoustic glass.
Junior Member
Joined: Feb 2016
Posts: 56
Likes: 2
From: Middlesex, UK
Jaguar XFS & wife GLC250 AMG Line Premium Plus
No Acoustic glass on my car!
Did 200 miles today on the motorway averaging 70 mph and no road noise issue with the car at all. Was able to hear the radio clearly without the need to turn it up high.
Did 200 miles today on the motorway averaging 70 mph and no road noise issue with the car at all. Was able to hear the radio clearly without the need to turn it up high.
Thread Starter
Super Member
Joined: Dec 2015
Posts: 812
Likes: 86
From: Springboro, OH
16 GLC 19 Volvo XC40 06Corvette Z06
[QUOTE=index1489;6794713]I've confirmed the belief that ALL GLC's in the US should have had the acoustic glass...
Tend to agree, however, just my gut feel.
That said, if I had a GLC without acoustic glass, would be asking my dealer to find out what the hell is going on. And whatever the answer is I'd want to see something official.
With vehicles delivered with/with out acoustic glass, one window with acoustic glass, the opposite side without. The situation is mucked up.
M-B owes it's GLC owners an explanation!
-
Tend to agree, however, just my gut feel.
That said, if I had a GLC without acoustic glass, would be asking my dealer to find out what the hell is going on. And whatever the answer is I'd want to see something official.
With vehicles delivered with/with out acoustic glass, one window with acoustic glass, the opposite side without. The situation is mucked up.
M-B owes it's GLC owners an explanation!
-
Thread Starter
Super Member
Joined: Dec 2015
Posts: 812
Likes: 86
From: Springboro, OH
16 GLC 19 Volvo XC40 06Corvette Z06
Earlier this week the dealer installed acoustic glass on the drivers side window.
A job well done. The window operates flawlessly. And I cannot tell that anything on the vehicle was disturbed.
Haven't had the opportunity to drive at speed on the freeway so don't know if there is a discernible reduction in road noise. Will post when I know.
Zero $...accomplished under warranty.
A job well done. The window operates flawlessly. And I cannot tell that anything on the vehicle was disturbed.
Haven't had the opportunity to drive at speed on the freeway so don't know if there is a discernible reduction in road noise. Will post when I know.
Zero $...accomplished under warranty.
Super Member
Joined: Aug 2015
Posts: 565
Likes: 26
From: Cincinnati OH
2013 BMW X6 - Soon to be GLC300 4M
Is it road noise or wind noise? Seems like most have been saying wind noise was the problem. I don't hear wind noise per se but I do hear road noise though it doesn't seem excessive.
Thread Starter
Super Member
Joined: Dec 2015
Posts: 812
Likes: 86
From: Springboro, OH
16 GLC 19 Volvo XC40 06Corvette Z06
Now, I wish someone would do the identical test with a vehicle that doesn't have acoustic glass in order to ascertain, is acoustic glass is worth all the fuss here a couple of months ago.
Super Member
Joined: Aug 2015
Posts: 565
Likes: 26
From: Cincinnati OH
2013 BMW X6 - Soon to be GLC300 4M
^^^this
I have thoughts about mentioning the acoustic glass when I bring it in for its first service but like I said, I feel like it's pretty quiet now though sometimes you don't know what your missing until you experience how it should be.
I have thoughts about mentioning the acoustic glass when I bring it in for its first service but like I said, I feel like it's pretty quiet now though sometimes you don't know what your missing until you experience how it should be.
Newbie
Joined: Dec 2015
Posts: 12
Likes: 3
GLC300 4matic
So I did an unofficial experiment. I downloaded an iPhone db meter and measured it along my way to work.
I don't have acoustic glass and the for the same speeds the db was higher. Maybe 5-10db.
But it was not he same app nor the same phone model. Also it looks like they are driving on asphalt whereas my highway is concrete.
I do hear noticable wind noise near the top of my driverside window starting around 76. mph
I don't have acoustic glass and the for the same speeds the db was higher. Maybe 5-10db.
But it was not he same app nor the same phone model. Also it looks like they are driving on asphalt whereas my highway is concrete.
I do hear noticable wind noise near the top of my driverside window starting around 76. mph
