Auto dim mirror sensitivity

BMW-ALPINA · 10-21-2020, 05:22 PM

Hi!

My auto dim mirror on my F11 LCI seems like it has low sensitivity. The car has OEM tinted windows. None of the mirrors dims, but if I take the flash on my iPhone on the sensor, it dims. Does anyone know if its possible to adjust the sensitivity on the sensor or something? It works perfect on my i3S, and this has also tinted windows.

mashpotato · 10-21-2020, 07:23 PM

JBBF 3080 isp heckscheibe

There is a post on bimmerfest about it. Also talk about side mirrors. Later cars might have the settings in a different module.

BMW-ALPINA · 10-22-2020, 05:00 AM

Yes, I saw the post on bimmerpost, and JBBF 3080 isp heckscheibe is already on "DUNKEL". I tried to change it til HELL, but nothing different. Any other ideas?

Qsilver7 · 10-22-2020, 09:59 AM

Do you have anything obstructing the rear side of the mirror that faces the windshield? Only asking because the dimming process takes in data from TWO different sensors. You have the sensor on the front side that receives data from vehicles driving behind you...but you also have an "ambient light" photosensor on the rear side of the mirror that facilitates adjusting the degree of the mirror's dimming function. (see #3 in the illustration below)

On a dark unlit road...the ambient light photosensor will cause the mirror to react differently than when you're driving at night in an urban/city area that is well lit with street lamps.

If you have something hanging from your mirror...it could be blocking that sensor...or if you have something applied to the upper portion of your windshield (strip of tint)...this could also affect the ambient light sensor.

BMW-ALPINA · 10-23-2020, 01:32 PM

Thanks for input. I tried with an G20 interior mirror today, and it worked perfect. It seems like the mirror from G20 er smart, since it was dimming whole different than the OEM F1x mirror. So now, everything works perfect, even when the glass are tinted and I have rollo/sunshade.

I think the sensor in the F1x mirror are less sensitive or the sensor are broken.

mashpotato · 10-25-2020, 08:25 PM

Don't know if it applies to you as I don't have tinted rear window. I have the issue of insensitivity, headlights are constantly glaring.

I put a piece of electrical tape in front sensor, covers it half way. I think this gives the setup an impression that it's darker outside, now the rear mirror reacts properly to my preference.

hufington · 10-28-2020, 11:19 AM

In my 550, I had the same issue and coud never solve it!

BMW-ALPINA · 10-28-2020, 04:03 PM

Quote:

Originally Posted by hufington

In my 550, I had the same issue and coud never solve it!

The solve is G20 rear view mirror!

ezaircon4jc · 10-28-2020, 06:59 PM

Quote:

Originally Posted by BMW-ALPINA

The solve is G20 rear view mirror!

Is it a direct replacement?

BMW-ALPINA · 10-28-2020, 07:56 PM

Quote:

Originally Posted by ezaircon4jc

Is it a direct replacement?

Yes, plug and play. I mounted the mirror in an M140i, but since it worked in my M550d too, I ordered one more. It will arrive Friday or Monday, so I can take picture then.

BMW-ALPINA · 10-30-2020, 05:29 PM

Here it is!

ezaircon4jc · 10-30-2020, 11:33 PM

Quote:

Originally Posted by BMW-ALPINA

Here it is!

Do you have a how-to? Looks like a worthwhile modification.

BMW-ALPINA · 10-31-2020, 05:32 AM

Its easy, but it won't fit cars before (regards to ISTA) 07/2011, since they have changed the mirror mount to the windscreen.

ezaircon4jc · 10-31-2020, 02:44 PM

Quote:

Originally Posted by BMW-ALPINA

Its easy, but it won't fit cars before (regards to ISTA) 07/2011, since they have changed the mirror mount to the windscreen.

THANK YOU!! I'll start searching for a mirror.

BMW-ALPINA · 10-31-2020, 05:20 PM

Quote:

Originally Posted by ezaircon4jc

THANK YOU!! I'll start searching for a mirror.

Your welcome!

Unspec · 04-07-2021, 12:40 AM

Do you have a part number for this?

Qsilver7 · 04-09-2021, 03:23 PM

Quote:

Originally Posted by Unspec

Do you have a part number for this?

Just go to one of the online part database sites like realoem.com or bimmercat.com and pull up the diagram for the G20's rear view mirrors. Then scroll down through the part nbr index below the diagram and select the part nbr that is correct for the options your car has:

https://www.realoem.com/bmw/enUS/sho...diagId=51_A388

Unspec · 04-12-2021, 02:44 PM

Quote:

Originally Posted by Qsilver7

Just go to one of the online part database sites like realoem.com or bimmercat.com and pull up the diagram for the G20's rear view mirrors. Then scroll down through the part nbr index below the diagram and select the part nbr that is correct for the options your car has:

https://www.realoem.com/bmw/enUS/sho...diagId=51_A388

OP has the frameless option, which is an individual option. I'm unsure of if OP went with the G20 frameless or F30 frameless.

10-21-2020, 05:22 PM	#1
BMW-ALPINA Freude am Fahren 486 Rep 367 Posts Drives: G26 i4 M50, F11 M550d, E70 X5 Join Date: Oct 2005 Location: Oslo, Norway iTrader: (0) Garage List 2011 BMW E70 X5 xDr ... [0.00] 2015 BMW F11 M550d ... [10.00] 2024 BMW G26 i4 M50 ... [0.00] 2009 730dA [10.00]	Auto dim mirror sensitivity Hi! My auto dim mirror on my F11 LCI seems like it has low sensitivity. The car has OEM tinted windows. None of the mirrors dims, but if I take the flash on my iPhone on the sensor, it dims. Does anyone know if its possible to adjust the sensitivity on the sensor or something? It works perfect on my i3S, and this has also tinted windows. __________________ OEM+ customization is the way to go!
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10-21-2020, 07:23 PM	#2
mashpotato Private 29 Rep 79 Posts Drives: '11 F10 N55 Join Date: Mar 2017 Location: Toronto iTrader: (0)	JBBF 3080 isp heckscheibe There is a post on bimmerfest about it. Also talk about side mirrors. Later cars might have the settings in a different module.
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10-22-2020, 05:00 AM	#3
BMW-ALPINA Freude am Fahren 486 Rep 367 Posts Drives: G26 i4 M50, F11 M550d, E70 X5 Join Date: Oct 2005 Location: Oslo, Norway iTrader: (0) Garage List 2011 BMW E70 X5 xDr ... [0.00] 2015 BMW F11 M550d ... [10.00] 2024 BMW G26 i4 M50 ... [0.00] 2009 730dA [10.00]	Yes, I saw the post on bimmerpost, and JBBF 3080 isp heckscheibe is already on "DUNKEL". I tried to change it til HELL, but nothing different. Any other ideas? __________________ OEM+ customization is the way to go!
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10-22-2020, 09:59 AM	#4
Qsilver7 Major General 4465 Rep 7,505 Posts Drives: F06 650ix GC / F15 X5 50i Join Date: Oct 2016 Location: Indiana, USA iTrader: (0)	Do you have anything obstructing the rear side of the mirror that faces the windshield? Only asking because the dimming process takes in data from TWO different sensors. You have the sensor on the front side that receives data from vehicles driving behind you...but you also have an "ambient light" photosensor on the rear side of the mirror that facilitates adjusting the degree of the mirror's dimming function. (see #3 in the illustration below) On a dark unlit road...the ambient light photosensor will cause the mirror to react differently than when you're driving at night in an urban/city area that is well lit with street lamps. If you have something hanging from your mirror...it could be blocking that sensor...or if you have something applied to the upper portion of your windshield (strip of tint)...this could also affect the ambient light sensor. Attached Images __________________ 2015 F06 650ix Gran Coupe`(Moonstone/Cohiba Brown)\| 2014 F15 X5 50i MSport (Space Gray/Mocha) Become a BMW CCA member! Click HERE to join and feel free to use my BMW CCA member #191509 as a referral. Last edited by Qsilver7; 10-22-2020 at 10:06 AM..
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10-23-2020, 01:32 PM	#5
BMW-ALPINA Freude am Fahren 486 Rep 367 Posts Drives: G26 i4 M50, F11 M550d, E70 X5 Join Date: Oct 2005 Location: Oslo, Norway iTrader: (0) Garage List 2011 BMW E70 X5 xDr ... [0.00] 2015 BMW F11 M550d ... [10.00] 2024 BMW G26 i4 M50 ... [0.00] 2009 730dA [10.00]	Thanks for input. I tried with an G20 interior mirror today, and it worked perfect. It seems like the mirror from G20 er smart, since it was dimming whole different than the OEM F1x mirror. So now, everything works perfect, even when the glass are tinted and I have rollo/sunshade. I think the sensor in the F1x mirror are less sensitive or the sensor are broken. __________________ OEM+ customization is the way to go!
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10-25-2020, 08:25 PM	#6
mashpotato Private 29 Rep 79 Posts Drives: '11 F10 N55 Join Date: Mar 2017 Location: Toronto iTrader: (0)	Don't know if it applies to you as I don't have tinted rear window. I have the issue of insensitivity, headlights are constantly glaring. I put a piece of electrical tape in front sensor, covers it half way. I think this gives the setup an impression that it's darker outside, now the rear mirror reacts properly to my preference.
	Appreciate 0 Quote

10-28-2020, 11:19 AM	#7
hufington Major 3122 Rep 1,354 Posts Drives: 2022 X5 m50i Join Date: Mar 2010 Location: North East iTrader: (0) Garage List 2018 Mercedes-Benz ... [0.00]	In my 550, I had the same issue and coud never solve it! __________________ 2022 BMW X5 m50i 2024 MB S63 on order '18 X5 50i / '16 BMW F10 550xi / '13 BMW F10 535i / '07 BMW E64 630i / '03 BMW E65 745i / '95 BMW E34 540i / '89 BMW E30 M3
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10-30-2020, 05:29 PM	#11
BMW-ALPINA Freude am Fahren 486 Rep 367 Posts Drives: G26 i4 M50, F11 M550d, E70 X5 Join Date: Oct 2005 Location: Oslo, Norway iTrader: (0) Garage List 2011 BMW E70 X5 xDr ... [0.00] 2015 BMW F11 M550d ... [10.00] 2024 BMW G26 i4 M50 ... [0.00] 2009 730dA [10.00]	Here it is! __________________ OEM+ customization is the way to go!
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10-31-2020, 05:32 AM	#13
BMW-ALPINA Freude am Fahren 486 Rep 367 Posts Drives: G26 i4 M50, F11 M550d, E70 X5 Join Date: Oct 2005 Location: Oslo, Norway iTrader: (0) Garage List 2011 BMW E70 X5 xDr ... [0.00] 2015 BMW F11 M550d ... [10.00] 2024 BMW G26 i4 M50 ... [0.00] 2009 730dA [10.00]	Its easy, but it won't fit cars before (regards to ISTA) 07/2011, since they have changed the mirror mount to the windscreen. __________________ OEM+ customization is the way to go!
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04-07-2021, 12:40 AM	#16
Unspec Colonel 1303 Rep 2,591 Posts Drives: 2015 BMW 535xi Join Date: Apr 2019 Location: DMV iTrader: (1)	Do you have a part number for this? __________________ 2015 BMW 535xi Bootmod3 Stage 2 \| ER charge pipe \| ER Catted DP \| Remus Exhaust \| Gplus FMIC \| KW V3 \| Turner Monoball thrust arm bushings \| Wallet regrets ISTA VM Setup/Tutorial
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