[TurtleBoy]

Try S3KAA AKUSTIKKOMFORTVERGLASUNG

[araje]

So my sales advisor told me that adding the acoustic glass wont really help the tire noise on rough gravel since that sound comes from below. He said the acoustic glass will only help with honks, motorbikes and passing vehicle noise.

Is that true? Especially when driving over concrete roads there is a specific noise from the car - does acoustic glass help with reducing those or is my sales advisor correct?

Also, I am looking for 21in rims and he said the 21s produce more noise than 20s on the same road.
I guess I am finding acoustic glass not worth the investment. But can you guys who have this option give some feedback. Thanks.

[zhangyi17]

Originally Posted by ggalanis

Does anyone know if we get the acoustic glass by default in Canadian orders?

On the bmw.ca site, it is not explicitly listed in any of the packages and is not on the list of options we can add.

I don't think Canadian version is acoustic glass. Would very much hope so

[TurtleBoy]

Originally Posted by araje

So my sales advisor told me that adding the acoustic glass wont really help the tire noise on rough gravel since that sound comes from below. He said the acoustic glass will only help with honks, motorbikes and passing vehicle noise.

Is that true? Especially when driving over concrete roads there is a specific noise from the car - does acoustic glass help with reducing those or is my sales advisor correct?

Also, I am looking for 21in rims and he said the 21s produce more noise than 20s on the same road.
I guess I am finding acoustic glass not worth the investment. But can you guys who have this option give some feedback. Thanks.

From my experience the acoustic glass helps with all sources of noise. It will not totally eliminate noise but lessens the impact of it. I can definitely hear tire noise on most road surfaces but it does not seems as loud as it was in non-acoustic glass loaners I have driven. My wife mentioned the same thing.

[ggalanis]

Originally Posted by zhangyi17

I don't think Canadian version is acoustic glass. Would very much hope so

yeah, it didn't.

Got the car last May. It is still relatively quiet though.

[TurtleBoy]

Originally Posted by ggalanis

yeah, it didn't.

Got the car last May. It is still relatively quiet though.

I would think your windshield is acoustic. Did you check the code on that?

Edit: What you are looking for is to see if there is a marking above the E with circle around it. You should hopefully see // which would indicate acoustic/laminated.

[ggalanis]

Originally Posted by TurtleBoy

I would think your windshield is acoustic. Did you check the code on that?

Edit: What you are looking for is to see if there is a marking above the E with circle around it. You should hopefully see // which would indicate acoustic/laminated.

I believe all the x5 windshields are acoustic regardless. I don't remember checking that one though.

I am referring specifically to the side glass. I had inquired before ordering about it, but it is just not offered in Canada as an option. After delivery, I remember explicitly checking my side glass for the codes that would indicate that they are acoustic and it is not there.
BMW Canada gave some explanation about the standard glass in Canada being thicker or better acoustically than in the US, making the difference more subtle and not worth offering acoustic as an option. I don't necessarily buy that excuse (and did not look for part numbers or evidence of this) but at the end of the day, the cars I test drove were already very quiet (compared to my x4 and the 335 i had before that)and it was becoming too much of a chore to get the better acoustic glass.

[TurtleBoy]

Yes, they are standard as far as I know. I wasn't sure if you were referring to all windows or not. I would think BMW Canada is feeding you a line and it is the same glass that is used in all other countries.

[BMW FINALLY!]

I have acoustic glass on my upcoming car. The price is now 600.00. Why has the price gone up? Anyone know? I see some have paid 150.00 or 300.00.

[TurtleBoy]

Originally Posted by BMW FINALLY!

I have acoustic glass on my upcoming car. The price is now 600.00. Why has the price gone up? Anyone know? I see some have paid 150.00 or 300.00.

Because it is a popular option and people will buy it at $600 so extra revenue. I'm not sure if it was verified but some have posted that originally it was just the front windows for $150.

[DgjoX6M2016]

Originally Posted by 2019x5User

How to check:

Originally Posted by Jrunr

Laminated or not, they are still The slowest power windows ever!!! Lol

There are several forward slashes (//) on the window labeling. I think ours is front glass only.

[M40i4me]

Windshield and side windows.

[TurtleBoy]

Originally Posted by 3284me

Windshield and side windows.

The acoustic windshield is standard, only the side windows are included in the option.

[BMW_Cyprus]

Originally Posted by TurtleBoy

The acoustic windshield is standard, only the side windows are included in the option.

At least here in EU acoustic glass gives you additional 0.5mm thickness on the windshield (5mm instead of 4.5mm)... Plus the 4 side windows

[Silver.Solid]

from my experience its a no brainier at 300. Damps outside noise.

[BMW_Cyprus]

Originally Posted by Silver.Solid

from my experience its a no brainier at 300. Damps outside noise.

Only that in EU it is €630 (code 3KA) and on top it is mandatory to take sun protection glazing (code 420) which is another €525. So not so cheap any longer unless we have a money pit

[floridaman100]

Originally Posted by TurtleBoy

The acoustic windshield is standard, only the side windows are included in the option.

Are you saying the acoustic windshield is standard without purchasing the option? Are you sure about that? Thanks

[jimbg]

Acoustic glass is laminated glass rather than toughened glass.

Windscreens have always been laminated glass.

On Range Rovers which I am more used to in the UK specify that the driver and front passenger windows are laminated. No mention of acoustic, but that is thereason.

[Marty in NY]

Originally Posted by floridaman100

Are you saying the acoustic windshield is standard without purchasing the option? Are you sure about that? Thanks

Have you ever seen a pic of a car, any car, any year, that has been in an accident and the front windshield is smashed? You can see that it doesn't break apart like normal glass, it cracks like heck but stays together, sometimes you can even see a bulge in it. That's because its made of a glass sandwich with plastic in the middle. Not sure when but this has been standard on all cars bought in the USA for many, many years. So, call it safety glass or let BMW name it and it's marketed as acoustic glass when they use it on side windows, which by the way is only on the four main side windows for their $600 option.
Not only is it good from an acoustic point of view but its very difficult to break it in an attempt to get into your car and in case of a side accident, it won't shatter all over your lap.

[maczrool]

If you look at a piece of laminated glass at certain angles you can usually make out a repeating pattern which I presume is a result of the manufacturing process of plastic layer.

[jimbg]

Yes that is laminated glass in your post, not to be confused with toughened glass.

Toughened glass, or tempered glass, is a high-strength glass that is up to 5 times stronger than ordinary glass. To make toughened glass, a standard strength pane of glass is heated to a high temperature and then rapidly cooled – forming an incredibly durable outer layer that can withstand impacts and temperature changes with ease.

[floridaman100]

Originally Posted by jimbg

Acoustic glass is laminated glass rather than toughened glass.

Windscreens have always been laminated glass.

On Range Rovers which I am more used to in the UK specify that the driver and front passenger windows are laminated. No mention of acoustic, but that is thereason.

You are correct that a windshield is laminated glass but it isn't acoustic glass. Acoustic glass is a sound dampening glass and just because it is laminated doesn't mean it is acoustic. The BMW acoustic package even states it includes the windshield and side windows.