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2019+ BMW 3 AND 4-SERIES FORUMS (G2x Generation) General G20 Sedan / G22 Coupe / G26 Gran Coupe Discussions Window tint triggering auto-dimming on both displays during the day

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      09-06-2020, 09:56 PM   #309
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Just posting for the record. The tint on my car is 20% all around (besides windshield). It's non ceramic. It's called LLUMAR ATC, it's just dyed but... has a 99% UV rejection. I have clear dimming issues in my car and in almost certain it's UV based.
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      09-06-2020, 09:59 PM   #310
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Originally Posted by Burrcold View Post
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Originally Posted by Socosurf View Post
Have this issue as well. 2020 330xi. 25% all around. Non ceramic. Hoping someone can find a fix.
Is it a carbon based film? They also trigger the dimming as well (just not as bad). What kind of tint is it?
It's LLUMAR ATC. A dyed film, non ceramic and 99% UV rejection.
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      09-07-2020, 07:04 AM   #311
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Quote:
Originally Posted by Socosurf View Post
Just posting for the record. The tint on my car is 20% all around (besides windshield). It's non ceramic. It's called LLUMAR ATC, it's just dyed but... has a 99% UV rejection. I have clear dimming issues in my car and in almost certain it's UV based.
You basically have the same tint I do (Llumar owns FormulaOne). The only difference is that your film is charcoal based film, so it's not just a dyed film. Almost all tints these days have 99% uv protection.

Unfortunately you have to go with a pure dyed film or (hate to say it) a cheap fim, to see the least issues with dimming.
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      09-07-2020, 03:23 PM   #312
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Originally Posted by Burrcold View Post
Quote:
Originally Posted by Socosurf View Post
Just posting for the record. The tint on my car is 20% all around (besides windshield). It's non ceramic. It's called LLUMAR ATC, it's just dyed but... has a 99% UV rejection. I have clear dimming issues in my car and in almost certain it's UV based.
You basically have the same tint I do (Llumar owns FormulaOne). The only difference is that your film is charcoal based film, so it's not just a dyed film. Almost all tints these days have 99% uv protection.

Unfortunately you have to go with a pure dyed film or (hate to say it) a cheap fim, to see the least issues with dimming.
Bummer. What a weird issue to have. Wish we just had an option to turn it off. Seems so simple.
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      09-08-2020, 02:42 PM   #313
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The brand for my tints is Rayno Phantom S5 at 20%. Picture with more details below. Still no dimming issues for me!
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      09-08-2020, 04:04 PM   #314
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15% tint in CA? That'll be an interesting conversation with the CHiPs motorcyclist. Here in NV the cycle cops carry a light transmission meter and have no mercy on issuing fixit tickets for front door glass that is too dark.
Forget about the cops, he is going to have almost no night vision at that tint level and the car is going to be dangerous to drive. If he has a accident at night the attorneys will be very happy!
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      09-08-2020, 06:41 PM   #315
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I can't speak for everyone, I have friends who have there cars heavily tinted 5% all around with 35% windshield. The cars doesn't haven't ambient lighting so in the night inside the car it's very dark like if you dropped something your going to need the reading lights to find it. But road visibility was fine, after like 10 mins i would forget the windshield was tinted. Looking out from the side and rear glass with the 5% it was was noticeably darker but nothing that I would say hindered my visibility to deem it dangerous to drive at night
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      09-09-2020, 10:44 AM   #316
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this is all a lot to keep up with - sucks you all are having this issue, looking thru some local dealers & trying to find what suits best

im thinking 30 or 35% for doors/windshield, 1 guy has

3M Obsidian ($299)
3M Ceramic IR ($699)
3M Crystallian ($559)

I havent gotten tints done in 10+ years, does this seem normal? Any recs?
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      09-09-2020, 03:52 PM   #317
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I can't speak for everyone, I have friends who have there cars heavily tinted 5% all around with 35% windshield. The cars doesn't haven't ambient lighting so in the night inside the car it's very dark like if you dropped something your going to need the reading lights to find it. But road visibility was fine, after like 10 mins i would forget the windshield was tinted. Looking out from the side and rear glass with the 5% it was was noticeably darker but nothing that I would say hindered my visibility to deem it dangerous to drive at night
It’s simple physics. With those levels of tint the distance you can see unlit objects at night will be dramatically reduced.
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      10-01-2020, 12:45 AM   #318
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Anyone with the my21 model having this issue as well ?
Curious about this also, as I have a '21 M340i on order.
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      10-01-2020, 02:29 PM   #319
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Originally Posted by BenitoBlanco View Post
Curious about this also, as I have a '21 M340i on order.
Same here - will want to tint mine as well (mid-Nov delivery) ... would be curious to know if its still an issue - thanks!
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      10-01-2020, 02:31 PM   #320
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Same here - will want to tint mine as well (mid-Nov delivery) ... would be curious to know if its still an issue - thanks!
It's been a problem for a few years now on various BMW models. I doubt 2021 is going to change anything.
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      10-06-2020, 07:48 PM   #321
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So I got 15% ceramic tints (xpel prime) all around and 50% on the windshield and I've experience no auto dimming what's so ever
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      10-06-2020, 09:32 PM   #322
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It's still hit and miss for 2021 (regardless of what some might be experiencing). I was at my dealership yesterday and they have a demo 2021 M340i that they've tinted the windows on (no idea what kind) but I definitely noticed the same dimming and even tried the flashlight to the gauges and they all brightened up.
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      10-24-2020, 10:09 PM   #323
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2021 M340. I just did 15% all around except the windshield. Tint is Llumar Stratos. No issues of dimming at all.
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      10-25-2020, 08:06 AM   #324
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Can some nice samaritan please summarize the following. Thanks in advance

What is the issue?
- Seems the dash displays go dim during the day with tint

What models and options does this issue impact?
- Seems like it is being discussed for G2X 3 series with full LCD displays. Would it impact F series 4 series with non-LCD displays - I ask because I am considering tint.

What tint options seem to prevent/reduce the issue?
- Seems lesser tints and non-ceramic helps
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      10-30-2020, 10:13 PM   #325
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Quote:
Originally Posted by antzcrashing View Post
Can some nice samaritan please summarize the following. Thanks in advance

What is the issue?
- Seems the dash displays go dim during the day with tint

What models and options does this issue impact?
- Seems like it is being discussed for G2X 3 series with full LCD displays. Would it impact F series 4 series with non-LCD displays - I ask because I am considering tint.

What tint options seem to prevent/reduce the issue?
- Seems lesser tints and non-ceramic helps
There is light sensor in instrument cluster. When windows are tinted, especially with lower quality darker films, il car thinks it is nighttime and dims screens.
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      10-31-2020, 06:21 AM   #326
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Originally Posted by Almaretto View Post
There is light sensor in instrument cluster. When windows are tinted, especially with lower quality darker films, il car thinks it is nighttime and dims screens.
Not exactly. It's generally lower quality films that work out better because they aren't rejecting as mush visible light and IR. The car doesn't think it's night or else all the gauge lighting would turn on and be in "night mode". The sensor simply isn't being hit with as much light, and therefore it dims slightly as it thinks it's probably an overcast day outside so it wouldn't need to have the displays at full brightness. When you hit it with a flashlight or if the sun is strong, the gauges brighten back update as the sensor assumes you need a brighter screen to combat the brightness/glare of the sun.

Hopefully that makes sense lol
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      10-31-2020, 07:44 AM   #327
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Quote:
Originally Posted by Burrcold View Post
Quote:
Originally Posted by Almaretto View Post
There is light sensor in instrument cluster. When windows are tinted, especially with lower quality darker films, il car thinks it is nighttime and dims screens.
Not exactly. It's generally lower quality films that work out better because they aren't rejecting as mush visible light and IR. The car doesn't think it's night or else all the gauge lighting would turn on and be in "night mode". The sensor simply isn't being hit with as much light, and therefore it dims slightly as it thinks it's probably an overcast day outside so it wouldn't need to have the displays at full brightness. When you hit it with a flashlight or if the sun is strong, the gauges brighten back update as the sensor assumes you need a brighter screen to combat the brightness/glare of the sun.

Hopefully that makes sense lol
With that said, do polarized or non polarized sunglasses help to see the lcd display when tint is used?
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      10-31-2020, 10:03 AM   #328
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After really playing around with the dial that brightens and dims to instrument panel it does dim on me but with my tints and my black interior it's pretty dark inside as it is so it doesn't affect the visibility I see it just fine. If I hadn't played around to see if I can further dim the display I wouldn't have noticed. The infotainment screen is super bright. For the most part I use the heads up the display. I assume those with lighter tints and lighter interiors really have a problem with the displays visibility dimming during the day time
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      01-04-2021, 10:39 AM   #329
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Quote:
Originally Posted by antzcrashing View Post
With that said, do polarized or non polarized sunglasses help to see the lcd display when tint is used?
No, it's not a polarization issue, it's a brightness issue (like turning the brightness down on your phone screen). Wearing any type of sunglasses makes it that much worse, as you're further reducing the amount of light your eyes are getting from the display.

FWIW - My friend who lives in Fort Lauderdale has a new m840i that has the issue, even in the Florida sun. So I have zero hope BMW is addressing this in any fashion currently. The only good news being that if it ever does receive a fix it should be 100% software driven, so previous model years shouldn't be excluded.

Last edited by 2020g20; 01-04-2021 at 10:21 PM..
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      01-04-2021, 11:25 AM   #330
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Quote:
Originally Posted by antzcrashing View Post
Quote:
Originally Posted by Burrcold View Post
Quote:
Originally Posted by Almaretto View Post
There is light sensor in instrument cluster. When windows are tinted, especially with lower quality darker films, il car thinks it is nighttime and dims screens.
Not exactly. It's generally lower quality films that work out better because they aren't rejecting as mush visible light and IR. The car doesn't think it's night or else all the gauge lighting would turn on and be in "night mode". The sensor simply isn't being hit with as much light, and therefore it dims slightly as it thinks it's probably an overcast day outside so it wouldn't need to have the displays at full brightness. When you hit it with a flashlight or if the sun is strong, the gauges brighten back update as the sensor assumes you need a brighter screen to combat the brightness/glare of the sun.

Hopefully that makes sense lol
With that said, do polarized or non polarized sunglasses help to see the lcd display when tint is used?
Polarized sunglasses definitely limit your visibility if the HUD option.
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