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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 02-20-2013, 05:11 PM   #1
Registered User
Join Date: Dec 2012
Location: California
Posts: 7
My Ride: M3
2004 M3 Autodim Mirror Retrofit: Not the thread you think it is.

I have an 04 M3 with the SOS mirror...I have now gone through two homelink/dimming/clown-nose mirrors...The initial mirror came off and the first mirror went on and no problem. The plug from the car to the mirror works perfectly. The clown nose strobes. Homelink works.

Everything works....Until night.

At night, the mirror dimmed like it was supposed to.
I got into the car, the morning after the night-drive and the mirror had burnt out (bubbles/brown spots) on the glass.

I chalked it up to a defective mirror (because everything else worked and it initially dimmed).

Bought the second mirror. Installed it. Drove it at night (last night, as it happens). This morning? It's burnt out.

I've seen the thread on the retrofit wiring harness but am not sure I need it? I've ordered my third mirror (all were used) and am awaiting for it to come.

Can someone tell me WTH is going on?
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Old 02-20-2013, 11:10 PM   #2
Registered User
Join Date: Feb 2013
Location: Virginia, US
Posts: 6
My Ride: 04 E46 325i
Same thing happened to me. First mirror leaked inside itself, so I bought another OEM one. Second one cooked like an oven halfway through a drive back to the university. Bubbled up and blacked out, started smelling like burnt bread. I ripped it off and threw it in a bag I keep handy. Luckily an autozone was nearby so I pulled in and macGyvered a mirror out of the old frame, a cheapo clipon mirror, and some gorilla glue. I think it was my fault though. I connected the new mirror midday. I accidentally flipped on the highbeams halfway through my install job and didnt notice. Then I flipped them off after I passed under a bridge five minutes before it roasted. In any case I bought a manual flip OEM one and Im much happier. Smaller, looks cleaner, and I prefer manual things anyways. I actually wish my car had turn handle windows and knob adjusted rearviews.
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Old 02-20-2013, 11:17 PM   #3
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Join Date: Dec 2012
Location: California
Posts: 7
My Ride: M3
I know my issue is a pin/wiring issue...At least I think it is....I just can't figure out the problem itself....Anyone?
eucalifornia is offline   Reply With Quote

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