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The sixth generation BMW 3 Series Sedan F30/F31/F34 and the first first generation 4 Series Coupe F32/F33/F36. Get the latest 3 and 4 series pricing from our ordering and pricing guide sticky thread.

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Old 06-19-2017, 01:13 AM
mr_clueless's Avatar
mr_clueless mr_clueless is offline
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Location: California
 
Join Date: Nov 2009
Posts: 3,291
Mein Auto: 2015 328i M-Sport
UV and IR blocking

Came across this article while researching the subject
https://www.thesun.co.uk/news/175436...her-motorists/

All glass will block 100% of UVB.

In my own research, I found that Volvo and Jaguar have better specs than BMW.

Volvo S60
UVA transmission Windshield < 1%
UVA transmission side window < 0.05%
IR transmission ~45%

Jaguar XE
UVA transmission 0%
Infrared transmission ~50% (varies depending on wind speed and vehicle speed, higher % of rejection the faster the vehicle is going)

Audi A4
UVA transmission < 1%

I got these numbers communicating with each manufacturer, but it looks like they may not be accurate, or they should have shown up in the above article being close to 0% transmission.
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2015 328i / M Sport / Alpine White / Coral Red / 4 DR / 6 MT / Rear Camera + PDC / Xenons / DHP / 60K+ Miles / Bought 10-30-2014

Last edited by mr_clueless; 06-19-2017 at 01:15 AM.
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