door mirrors....heated?

peter2704

Member
ok ,so the cold mornings have alerted me to a possible issue on the z4.Do these come with heated mirrors,if so, how are they turned on ?
my passenger side seemed to clear quicker than the drivers,so if they are heated what could be the issue,and how hard is it to removed the heated glass?
 
peter2704 said:
ok ,so the cold mornings have alerted me to a possible issue on the z4.Do these come with heated mirrors,if so, how are they turned on ?
my passenger side seemed to clear quicker than the drivers,so if they are heated what could be the issue,and how hard is it to removed the heated glass?

You could have heated mirrors, you could have anti glare mirrors..tip your vin into a decoder and it will tell you..if you have a defective mirror glass they are really really expensive
 
There is no switch for them, they turn on and of by some sort of electronic trickery (while it works)!

No point buying a heated glass if your car doesn't have heated mirrors though, so a quick VIN check to find out could still potentially save you £13.
 
peter2704 said:
searched ebay for heated e89 mirror glass,came up at £13 ??

Until you know what you’ve got you won’t know which mirror to buy..different pin outs on different combos of mirror glass…

If you find a heated E89 mirror glass that matches the original for £15 I’ll send you a cadburys cream egg :thumbsup:
 
My cars were heated, neither seem to work now.
Must be fuse gone i assume.
Thought might be temperature related, double check next time it's cold.

Glass both sides nearly fell out, not sure if that did something when i glued them back in.
 
They might just have burnt out. I just replaced both mirrors on my non Zed. Working now.
 
I’m sure passenger side is working , are they easy to pop off and check for wiring to heater element , will check the state of them tomorrow at 5am see if they demist /clear
 
B21 said:
peter2704 said:
searched ebay for heated e89 mirror glass,came up at £13 ??

Until you know what you’ve got you won’t know which mirror to buy..different pin outs on different combos of mirror glass…

If you find a heated E89 mirror glass that matches the original for £15 I’ll send you a cadburys cream egg :thumbsup:
Offer accepted 😆
 
peter2704 said:
Do these come with heated mirrors

If you get a USB-powered hair dryer and point it at your cold mirrors, they become heated. Yeah, yeah, you're welcome.
:P
 
What i don't understand is the switch next to heating element.

Wonder if there is temperature sensor in the mirror to switch the current.

I need to check that 30A fuse.
 
Well yes, of course, that would be it.
I thought perhaps the outside temp. sensor might send signal to switch them.
Reason for the data lines.
Switch might have been thermal cut out.
 
I always thought the heated up (incredibly slowly) when you put the rear window heater on…. Who knew they were on all the time.

Never understood them though as on my e46’s they actually worked really well to clear frost and misting in just a couple of minutes. From E90 onwards - including related E89, it seems like they work super slow and are dependent on outside temperature to turn on or something. I always have a cloth to wipe them. In the early 90s when I had a Ford and a couple of Rovers, the mirrors worked perfectly. You could see steam coming off them when it was cold and I never had a broken glass either.
 
Well guys, it's a bit more complicated as always with our cars. :oops:

There exist 2 different mirror solutions:
  • Heated and anti glare LIN bus foldable mirrors
  • Heated Non-LIN bus mirrors
Ugh, what is a LIN bus? Well, that's a single wire data bus to transmit data frames from one modul to another. The sender is the Junction Box Electronics JBE, the receiver is an electronic modul placed INTO the mirror housing.

Both types of mirror heaters are supported by the junction box electronics and operate depending on the vehicle's front temperature sensor. There is no way to manually heat the mirrors. This is JBE magic!
  • LIN bus mirrors are connected by a 6-pole plug in the window triangle, which only keeps 3 wires: +12V, GND, LIN.
  • NON-LIN bus mirrors are connected by the same 6-pole plug in the window triangle, which keeps 5 wires(!) from the JBE.

The installed mirror version can be checked by pulling off the mirror triangle with the tiny speaker on the inner side of the doors, unplug the 6-pole connector and count the number of pins comming in from the mirror! Quite simple, no tool is required.



This autumn I had a problem with foggy mirror glasses in a chain of several 3km tunnels in the north of Italy. No way to get the mirror heating to do their job, I had paid for! That was the initial kickup for another project of mine:
SHiIT: Mirror (German: Spiegel) Heating in Italian Tunnels.

SHiIT has been successfully finished some days ago with some interesting findings on the mirror heatings. :rofl:

Just have a look:
In German: https://www.zroadster.com/forum/threads/projekt-spiegelheizung-in-italienischen-tunneln-shiit-erfolgreich-abgeschlossen.149170/
or Translated by Google
 
RobbiZ4 said:
Well guys, it's a bit more complicated as always with our cars. :oops:

There exist 2 different mirror solutions:
  • Heated and anti glare LIN bus foldable mirrors
  • Heated Non-LIN bus mirrors
Ugh, what is a LIN bus? Well, that's a single wire data bus to transmit data frames from one modul to another. The sender is the Junction Box Electronics JBE, the receiver is an electronic modul placed INTO the mirror housing.

Both types of mirror heaters are supported by the junction box electronics and operate depending on the vehicle's front temperature sensor. There is no way to manually heat the mirrors. This is JBE magic!
  • LIN bus mirrors are connected by a 6-pole plug in the window triangle, which only keeps 3 wires: +12V, GND, LIN.
  • NON-LIN bus mirrors are connected by the same 6-pole plug in the window triangle, which keeps 5 wires(!) from the JBE.

The installed mirror version can be checked by pulling off the mirror triangle with the tiny speaker on the inner side of the doors, unplug the 6-pole connector and count the number of pins comming in from the mirror! Quite simple, no tool is required.



This autumn I had a problem with foggy mirror glasses in a chain of several 3km tunnels in the north of Italy. No way to get the mirror heating to do their job, I had paid for! That was the initial kickup for another project of mine:
SHiIT: Mirror (German: Spiegel) Heating in Italian Tunnels.

SHiIT has been successfully finished some days ago with some interesting findings on the mirror heatings. :rofl:

Just have a look:
In German: https://www.zroadster.com/forum/threads/projekt-spiegelheizung-in-italienischen-tunneln-shiit-erfolgreich-abgeschlossen.149170/
or Translated by Google

My offer still stands..


Until you know what you’ve got you won’t know which mirror to buy..different pin outs on different combos of mirror glass…

If you find a heated E89 mirror glass that matches the original for £15 I’ll send you a cadburys cream egg :thumbsup:
 
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