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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > DIY Guides > DIY: Installing Power Folding Mirrors with Autodimming feature



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      08-11-2018, 11:10 AM   #111
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Mirror folding retrofit: all problems solved and mirrors fold perfect!

Hi all,

I could fix the problems myself.

It looks like the problem was with the mirrors. One of the mirror's folding motor gear was stuck. Sprayed WD-40 followed by grease and the folding part worked. I didn't have to open the motor casing as there is a tiny hole that gives access to the gear housing. Then one of the mirror glass's motor mechanism (up/down, left/right) didn't work and I had to disassemble to fix it. If interested, please look at my DIY (https://www.e90post.com/forums/showthread.php?t=1524591)

I had a PC oscilloscope, so I could see that the mirrors were getting LIN bus signal and the pulse width was changing when I was operating the driver cluster switch. This way I knew that the wiring and programming part is most probably alright.

So finally, everything works thanks to this thread/DIY and the various other youtube videos. The mirror tilt function while reversing is a really nice bonus!
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      08-15-2018, 05:13 AM   #112
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i want this mod.

Quote:
Originally Posted by Jose_JN View Post
You have to add $313 to your VO (or $430 if they are auto dimming) and recode the FRM module. After that, the auto tilt function should work like shown in the video

You can do it with NCS of course.

Regards.
Is there anyone in or around London who can do this on my E92. i do not have memory seats.

Also what other cool mods do people recommend we get on these cars?
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      08-20-2018, 11:00 PM   #113
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Quote:
Originally Posted by Musti85 View Post
Is there anyone in or around London who can do this on my E92. i do not have memory seats.

Also what other cool mods do people recommend we get on these cars?
this forum is all about mods check my signature
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      09-07-2018, 09:49 PM   #114
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Just picked a pair of folding mirrors from E90 LCI to retrofit on my E90 LCI.
And just received my BimmerGeeks Protool bluetooth OBDII and also bought their Protool app.

I really hope I can do the coding part using the Protool.
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      09-09-2018, 02:06 AM   #115
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Happy to say it worked. I did break my right mirror, but luckly I had the replacement from the one I picked up, which is heated and autodimming.

The biggest struggle was getting the left mirror out, since now I was a bit scared that I might break it, and it was pain to get the driver side door panel out.
It took about 3 hours, maybe more with help from my brother. Wanted to take my time and do it properly. But ended breaking the first/right mirror

Coded it with Protool and made it so once I lock via fob/key in door (I don't have CA) it would instantly fold.
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      03-05-2019, 04:47 AM   #116
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Retrofit for Auto-fold Side Mirrors

My e92 M3 has manual folding side mirrors. I wish to make it auto-folding via door switch or via remote key fob (coded). I have electric memory seats, auto-dip mirror function.

I already bought the driver side window/door switch panel with button for side mirror. I also have Carly and coded the auto fold function but message shows that the mirrors should have LIN-bus to make them fold.

Have searched thru various forums and most suggested to buy a pair of side mirrors with auto-fold/auto-dip function (PN# 51168053711 & -712) which now cost $1100-1200/pair brand new. Even used part outs cost at least $400+ per piece.

Instead of buying the whole side mirror assembly, will it work if I just buy the LIN-bus parts (PN# 67137191398) and side mirror wiring assembly (PN# 67136972536 & -537) and just plug & play these into my existing side mirrors? Of course, I will also replace the window door switch panel with button. Cost of LIN-bus and wiring is only $250 per side or half the price for a brand new pair of side mirrors.

Will this work? Are the side mirror wiring assembly even necessary given that I already have electric power seats and auto-dip function?
Appreciate any comments/advice.

Sam
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      03-05-2019, 12:25 PM   #117
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no, you need mirror assembly because motorized have different design
do you have rhd or lhd car ?
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      03-05-2019, 09:29 PM   #118
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Quote:
Originally Posted by ptpending View Post
no, you need mirror assembly because motorized have different design
do you have rhd or lhd car ?
@ptpending : LHD
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      03-06-2019, 04:17 AM   #119
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Quote:
Originally Posted by uncle_sam View Post
@ptpending : LHD
LHD M3 mirrors cost much money
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      03-26-2019, 02:57 PM   #120
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I got too excited with this DIY and ordered on ebay the autodimming mirrors (only the glass). I already had power folding mirrors, auto-dip and memory seats. I thought it was just a question of replacing the mirrors with the autodimming ones and do some coding. When I removed the original mirror, it only had two wires that connect to two pins on the mirror (heating probably). The autodimming mirror that I got has a plug with four pins inside. What are my options now? Get a new harness?

Last edited by r77; 03-28-2019 at 01:14 PM.. Reason: clarification
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      03-28-2019, 01:11 PM   #121
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Quote:
Originally Posted by r77 View Post
I got too excited with this DIY and ordered on ebay the autodimming mirrors. I already had power folding mirrors, auto-dip and memory seats. I thought it was just a question of replacing the mirrors with the autodimming ones and do some coding. When I removed the original mirror, it only had two wires that connect to two pins on the mirror (heating probably). The autodimming mirror that I got has a plug with four pins inside. What are my options now? Get a new harness?
Maybe I just need this harness?

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      03-29-2019, 04:23 PM   #122
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When I did the retrofit, my car didn't have auto dimming side mirrors.

When I got the electric folding mirrors I noticed the same thing you have. The set I picked up had the right mirror glass but not the left one.

I didn't realize it was for heated and auto dim.
So when I took off the left mirror from my original one and tried to place it; I noticed the same thing you did.

So now my mirror is in place but not hooked yp. Since it's only a heated mirror.

I need to find a cheap heated and auto dim mirror. These things are expensive!
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      07-17-2019, 10:21 AM   #123
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Quote:
Originally Posted by r77 View Post
I got too excited with this DIY and ordered on ebay the autodimming mirrors (only the glass). I already had power folding mirrors, auto-dip and memory seats. I thought it was just a question of replacing the mirrors with the autodimming ones and do some coding. When I removed the original mirror, it only had two wires that connect to two pins on the mirror (heating probably). The autodimming mirror that I got has a plug with four pins inside. What are my options now? Get a new harness?
To the ones who have done this DIY and remember the harness they used, do I just need to do change this harness ( wich I think is the one I have - see quote above):




with this one?


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      08-12-2019, 07:28 AM   #124
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Quote:
Originally Posted by r77 View Post
I got too excited with this DIY and ordered on ebay the autodimming mirrors (only the glass). I already had power folding mirrors, auto-dip and memory seats. I thought it was just a question of replacing the mirrors with the autodimming ones and do some coding. When I removed the original mirror, it only had two wires that connect to two pins on the mirror (heating probably). The autodimming mirror that I got has a plug with four pins inside. What are my options now? Get a new harness?
Hi,

If you already have folding feature and you have bought the dimming glass, you also need to repace the wiring harness in both mirrors.
The harness is also a LIN Controller. It is not easy to find them in ebay so your best option is to order them at your local dealer or maybe find a broken mirror and remove the harness.

I did it with my friend's car. To install them I had to cut the floding wires (yellow and white) and solder them in the new LIN controller because I did not find the way to unplug the folding motor without remove the spring and folding axle.

Best regards!
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