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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Mon, Feb-10-2014, 03:02:26 PM   #1
Axol
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Default Auto-Dim Side Mirror retrofit from E9X

Hello,

Has anyone been able to retrofit the auto-dim driver's side mirror from the E9X?

http://www.ebay.com/itm/OEM-BMW-1-3-...item1c3b94c784
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Old Mon, Feb-10-2014, 03:13:40 PM   #2
kokgo20
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Default Re: Auto-Dim Side Mirror retrofit from E9X

If i'm not mistaken all it needs is power for the auto dim to work, but the question is, will it fit inside our mirror covers and snap on the motor?
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Old Mon, Feb-10-2014, 04:05:38 PM   #3
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Default Re: Auto-Dim Side Mirror retrofit from E9X

I don't see the sensor so I assumed that it would be triggered from the Rear View mirror inside the car but you could be right.
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Old Mon, Feb-10-2014, 04:07:51 PM   #4
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Default Re: Auto-Dim Side Mirror retrofit from E9X

Yes it can be done. You have to run wires to your mirror since that's how he e9x triggers the side mirror tint. Uses same sensor for the main interior mirror
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Old Mon, Feb-10-2014, 04:46:34 PM   #5
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Default Re: Auto-Dim Side Mirror retrofit from E9X

Interesting. Next time I need to replace the side mirrors glass I'll try these.
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Old Mon, Feb-10-2014, 06:45:48 PM   #6
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Default Re: Auto-Dim Side Mirror retrofit from E9X

Terraphantm has done this. E90 non-M prefacelift mirrors are what you need.

http://www.m3forum.net/m3forum/showp...4&postcount=18
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Old Mon, Feb-10-2014, 07:17:44 PM   #7
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Default Re: Auto-Dim Side Mirror retrofit from E9X

Quote:
Originally Posted by TheGenius46M View Post
Terraphantm has done this. E90 non-M prefacelift mirrors are what you need.

http://www.m3forum.net/m3forum/showp...4&postcount=18
Thanks, I know about the mirror being a direct fit but I'm specifically interested in the auto-dim feature.

In particular, which wire from the RearView mirror will need to be tapped into to trigger the side mirror dimming function.
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Old Tue, Feb-11-2014, 05:01:54 AM   #8
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Default Re: Auto-Dim Side Mirror retrofit from E9X

I haven't done the autodim mirror function. My original plan was to do just that, but after driving a BMW with the autodimming side mirrors, I realized that I don't like them since they're linked to the rear view mirror rather than having their own sensors. They're actually quite dangerous if you have tint (had to disable them on my dad's E60).

That said, the retrofit shouldn't be too difficult. My strategy was going to be to use the autodimming harness from a Z4 or X3, both of which have electronics similar enough to the E46 for the mirrors to retrofit with no drama. On the E9x+ the dimming modules are liniked to the CAS and it's just a mess to deal with.

I don't think the mirrors take straight 12v. I tried applying 12v to a set of E39 M5 mirrors I had, and they just bubbled immediately.
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Old Tue, Feb-11-2014, 05:54:52 AM   #9
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Default Re: Auto-Dim Side Mirror retrofit from E9X

I think they were knocked down to 5 V or something.. I remember at one point I did have the wiring diagrams for the E9X and it all made sense. I'll try to look into it again if I have time at work.
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Old Tue, Dec-26-2017, 07:23:10 PM   #10
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Default Re: Auto-Dim Side Mirror retrofit from E9X

Quote:
Originally Posted by terraphantm View Post
I haven't done the autodim mirror function. My original plan was to do just that, but after driving a BMW with the autodimming side mirrors, I realized that I don't like them since they're linked to the rear view mirror rather than having their own sensors. They're actually quite dangerous if you have tint (had to disable them on my dad's E60).

That said, the retrofit shouldn't be too difficult. My strategy was going to be to use the autodimming harness from a Z4 or X3, both of which have electronics similar enough to the E46 for the mirrors to retrofit with no drama. On the E9x+ the dimming modules are liniked to the CAS and it's just a mess to deal with.

I don't think the mirrors take straight 12v. I tried applying 12v to a set of E39 M5 mirrors I had, and they just bubbled immediately.
Quote:
Originally Posted by Tchleung View Post
I think they were knocked down to 5 V or something.. I remember at one point I did have the wiring diagrams for the E9X and it all made sense. I'll try to look into it again if I have time at work.


I just finished this on my car though i had another twist.. i have NON M zibbon cable BUS mirror motors retrofitted into m3 mirror housings but my mirror motors still have 4 ears to accept m3 glass or the E90 pre LCI Glass.



i took apart my m3 oval mirror and wired in external leads so now my mirror has 2 wire harness coming out. I made a split y cable so 2 wires can go to the driver side and passenger side.


the voltage for auto dim is 0 - 1.5 volts. when fully DIM, it outputs 1.5 volts (tested with multi-meter)

e90 pre LCI glass has 4 wires.

Red = heater +
Brown = heater -
Purple = auto dim +
Black = auto dim -


you need to test the voltage coming off your heater wires. they are not flipable.. if reversed it will read - 12 volts when activated..




the auto dimming is very welcome. im always being blinded by someone behind me and its so annoying. even with the BLUE e46 glass, it didnt help and I had to hold my hand over the glass to block light. now that doesnt happen.

I was pretty happy with this wiring job. I made all wiring independent so its completely reversible and each piece has its own harness. driver side and passenger side mirrors have their own harness which terminate in the door with the stock ribbin cable harness then a new harness goes from there through the door (I hijacked 2 empty pins in the door harness plug and used that for a factory fit and finish) I ran the harness up each pillar and into the headliner and the new output lead from the M3 mirror has its own plug which splits out into 2 plugs for a Y connection to each side.


this is why i go the junk yard to harvest stock connectors and wiring plugs/pins . it helps to have it all on hand.

IMG_20171221_010536 by Shawn Robertson, on Flickr
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video if the auto dim. its much more apparent when there is light showing in the actual glass like headlights etc... it gets a dark dark blue

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Discussing Auto-Dim Side Mirror retrofit from E9X in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)