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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 12-12-2012, 03:13 PM   #1
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Join Date: Jan 2011
Location: Savannah, GA
Posts: 1,212
My Ride: R1100GS E46 E53
Couple questions.

Is it possible to switch the light control switch modual from the manual lights to the automatic head light contol unit and hav it work properly? And to follow up with that, I also want to switch the mirror from the standard 323 mirror to the M3 mirror with the rain sensor and auto dim. Will those functions work as well? I noticed that there was a spare un used wire plug up in the sun roof area. I would apreciate any input!
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Old 12-12-2012, 03:19 PM   #2
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I believe this is a coding question..

bulletproof one piece at a time
full listing of BMW Performance parts for the E46
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Old 12-12-2012, 03:20 PM   #3
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It might work, but not with those wheels. You should probably just send those to me

But really, it would probably depend on where the sensors are. if the mirror has the sensor built in then it should be fine as long as it has power while driving. as for the headlights, I'm not sure where the sensor is but I'm guessing it would most likely require support from the ECU for that function to work.

Last edited by Ruthlessone3k; 12-12-2012 at 03:21 PM.
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Old 12-12-2012, 03:34 PM   #4
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My Ride: R1100GS E46 E53
Damn... I thought the wheels would be an issue. Better switch back to stock

I was always under the impression that the control unit for both the rain sensor and the auto headlights was in the fancy Mirror itself. Ill have to dig a little on that one. Ill probably use the Mirror out of the E53 as well, I'm not a huge fan of the oval.
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lights, mirror, swap

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