Why is front door glass thicker than rear?

S6F · 10-26-2019, 05:52 PM

curious...

Bob in IL · 10-26-2019, 07:12 PM

Quote:

Originally Posted by stevefoster

curious...

If I'm not mistaken the front glass is acoustic and the rears are not.

brissim · 10-26-2019, 07:57 PM

Quote:

Originally Posted by Bob in IL

If I'm not mistaken the front glass is acoustic and the rears are not.

That's my understanding as well. Depending upon market the front passenger windows are laminated either as standard or as an option. Same as for the new G20/21 3 Series.

Tony

Bklynjoker · 10-26-2019, 11:14 PM

Effffff your front glass lol, bro they aren't as strong as you think. The smallest of small tiny ass pebbles took my windshield out, it hit the perfect spot while on turnpike(95). I had to watch this line grow longer & longer while driving home. Talk about anxiety

babaikram · 10-27-2019, 08:09 AM

The front glass is not thick at all. A tiny pebble scattered mine and it needed replacement. And when being replaced with original BMW logo one, it was quite thin. Although I don't know whether having HUD makes the glass thinner.

Just out of curiosity, what made you think it the front glass was thicker than the rear glass?

SteveinArizona · 10-27-2019, 08:20 AM

I am reading the OP talking about the glass in the doors, not the windshield and rear window.

Dephead2004 · 10-27-2019, 09:45 AM

To save weight. Front is thicker for noise reduction. Rear is thinner and yes you get more road noise in.

Bob in IL · 10-27-2019, 10:29 AM

Quote:

Originally Posted by SteveinArizona

I am reading the OP talking about the glass in the doors, not the windshield and rear window.

That was my understanding too.

GL · 10-27-2019, 12:22 PM

None of the side glass is acoustic on the G30. You can easily determine if a side glass is acoustic by rolling it down slightly and observing the top edge. If you see three layers, it is acoustic. It will look like a sandwich. If it looks and feels like one solid piece, it is not acoustic.

I wish the G30 had acoustic side glass to remove the bit of wind buffeting around the side mirrors.

Bklynjoker · 10-29-2019, 10:15 PM

Quote:

Originally Posted by Bob in IL

Quote:

Originally Posted by SteveinArizona

I am reading the OP talking about the glass in the doors, not the windshield and rear window.

That was my understanding too.

Quote:

Originally Posted by Bob in IL

Quote:

Originally Posted by SteveinArizona

I am reading the OP talking about the glass in the doors, not the windshield and rear window.

That was my understanding too.

Same with me, I saw glass and a rant came out. I apologize, shits frustrating.

10-26-2019, 05:52 PM	#1
S6F First Lieutenant 95 Rep 335 Posts Drives: '19 540ixMsport Join Date: Aug 2010 Location: Central NJ iTrader: (1)	Why is front door glass thicker than rear? curious...
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10-26-2019, 11:14 PM	#4
Bklynjoker Lieutenant 85 Rep 479 Posts Drives: G20 %E2%80%9C22%E2%80%9D MSpor Join Date: Jan 2014 Location: NY/NJ iTrader: (1)	Lol Effffff your front glass lol, bro they aren't as strong as you think. The smallest of small tiny ass pebbles took my windshield out, it hit the perfect spot while on turnpike(95). I had to watch this line grow longer & longer while driving home. Talk about anxiety Attached Images __________________ LeXxiNGToN aka LeXxDiAMoNDS
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10-27-2019, 08:09 AM	#5
babaikram M6GCComp, Porsche Cayman S PDK, Peug 208 GT1 BPS 512 Rep 1,280 Posts Drives: . Join Date: May 2015 Location: England iTrader: (0)	The front glass is not thick at all. A tiny pebble scattered mine and it needed replacement. And when being replaced with original BMW logo one, it was quite thin. Although I don't know whether having HUD makes the glass thinner. Just out of curiosity, what made you think it the front glass was thicker than the rear glass? __________________ Acceleration is heavenly
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10-27-2019, 08:20 AM	#6
SteveinArizona Brigadier General 3086 Rep 4,210 Posts Drives: BMW 530e Join Date: Jul 2016 Location: Greater Phoenix iTrader: (0)	I am reading the OP talking about the glass in the doors, not the windshield and rear window.
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10-27-2019, 09:45 AM	#7
Dephead2004 Lieutenant 180 Rep 549 Posts Drives: G30 520i Join Date: Feb 2018 Location: UK iTrader: (0)	To save weight. Front is thicker for noise reduction. Rear is thinner and yes you get more road noise in.
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10-27-2019, 12:22 PM	#9
GL Private First Class 121 Rep 165 Posts Drives: 2022 X7 M50i, 2019 540i Join Date: May 2018 Location: NW Arkansas iTrader: (0)	None of the side glass is acoustic on the G30. You can easily determine if a side glass is acoustic by rolling it down slightly and observing the top edge. If you see three layers, it is acoustic. It will look like a sandwich. If it looks and feels like one solid piece, it is not acoustic. I wish the G30 had acoustic side glass to remove the bit of wind buffeting around the side mirrors.
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