04 545i Rear view mirror replacement
#1
Members
Thread Starter
![Default](https://5series.net/forums/images/icons/icon1.gif)
Has anyone had there rear view mirror glass change into a what looks like blob? Can the glass on these mirror be changed out or would I have to buy awhole new unit? see attached pic. Posted this on Bimmerfest but no response so far...
#2
Senior Members
Join Date: Aug 2010
Location: Ct
Posts: 948
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: 04' 545i, Sport Package, Black, Active Xenon, ARS, Aux Input
'10 Tahoe, Black on Black, leather, Nav/XM, 20" tires, full body kit, power 2nd row, loaded
'93 Jeep Wrangler, lifted 4.5", 33" meats, Rampage Recovery Bumper w/Tire Swing, etc
25' Aquasport Osprey, Center Console,2012 200 HO Etec
![Default](https://5series.net/forums/images/icons/icon1.gif)
What the hell happened to it?????
Look at Realoem.com for a replacement - it may show you glass and/or full unit...
The other forum mentioned is kind of dead by comparison.
Look at Realoem.com for a replacement - it may show you glass and/or full unit...
The other forum mentioned is kind of dead by comparison.
#3
Members
Thread Starter
![Default](https://5series.net/forums/images/icons/icon1.gif)
From what I can tell its something that is common on the cars with the auto-dimming mirrors. Now just need to find a replacement...wonder if I can find one without auto-dimming....or even without Homelink since I think that is tied into the car security.
#4
Members
Join Date: Jul 2009
Location: The Great PNW
Posts: 124
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: 2005 545i, Silber-grau/grau. Vanilla flavored except for cold WX pkg.
![Default](https://5series.net/forums/images/icons/icon1.gif)
Do these mirrors dim by mechanically tilting the glass or electrically altering the reflectivity?
#5
Members
Thread Starter
![Default](https://5series.net/forums/images/icons/icon1.gif)
Some kind of electrochemical....I heard they cam sometimes leak out. I was giving two options, 1) have an Glass shop cut out a glass to fit over it so I don't loose the homelink/security or buy a replacement (cheapest so far is $300+). The Dealers have it for...well...we know that song.
#6
![Default](https://5series.net/forums/images/icons/icon1.gif)
Looks like the mirror has had 12v though it. The Auto-dimming is known as electro-chromatic (EC). Sensors front and back compare light levels and apply 1.2v across the front and rear surfaces of the glass element causing the liquid in the sandwich to change colour. 12v is enough to boil the fluid, turning it into what looks like a black lava lamp.
You will neeed to find the source of the 12v or it will happen again to any replacement. If you have auto dimming outside mirrors too, this could be the likely source of the 12v as the 1.2v used to dim them is supplied from the interior mirror. If you've repolaced a mirror glass recently, check the connections.
Good luck
You will neeed to find the source of the 12v or it will happen again to any replacement. If you have auto dimming outside mirrors too, this could be the likely source of the 12v as the 1.2v used to dim them is supplied from the interior mirror. If you've repolaced a mirror glass recently, check the connections.
Good luck
Thread
Thread Starter
Forum
Replies
Last Post
socale39
Complete Car Sales
9
09-05-2023 08:30 AM