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Heated Mirror Issue

Discussion in 'A6/S6/Allroad forum (C5 Chassis)' started by TwistedMind, Oct 20, 2012.

  1. TwistedMind
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    TwistedMind Long Live The A6

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    [Oct 20, 2012]
    Morning All

    Heated mirror issue this time. Driver one works fine. Passenger one has no voltage at the terminals.

    Are the on the same circuit ?

    Where do i start fault finding?

    Cheers.

    Mind
    #1
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  3. murran
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    murran Active Member

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    [Oct 20, 2012]
    broken wire in the rubber boot to the door in the a post?
    #2
  4. TwistedMind
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    TwistedMind Long Live The A6

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    [Oct 20, 2012]
    Murran, hope not. Just had broken wires in the boot fixed. will the colour codes be the same in the kick panel ?

    I was thinking of testing there first to see if the power is present in the kick panel.

    The soldering iron is coming out way to much LOL.
    #3
  5. TwistedMind
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    TwistedMind Long Live The A6

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    [Oct 21, 2012]
    Bit strange now. Have the mirror fully apart. When i now put the ignition on i have constant 12V on the wires ?

    Are the heated mirrors always powered ?
    #4
  6. elan2s
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    elan2s Member

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    [Oct 22, 2012]
    I believe so, but it may be build date dependent. Audi certainly went through a period of permanently powering the mirrors. I had a '97 A4 that must have gone through at least 3 sets of mirror glasses because they were permanently powered leading to the wires in the glass burning out. Can't recall definitely, but I think both my '00 and '03 A6s were the same, although I did not have the mirror burn out issues
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  7. TwistedMind
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    TwistedMind Long Live The A6

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    [Oct 22, 2012]
    Mine is a 2000, doing some googling they are 12v all the time. the mirror has an integral thermostat. Only active below 12 deg'

    What a stupid idea.

    Cheap heated mirror from ebay time. Lets see how long that lasts.
    #6
  8. amimmortal
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    amimmortal Member

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    [Oct 23, 2012]
    I just noticed that my driver side mirror is only clearing half of the glass - how easy is it to remove the trim and get into the gubbinz?

    It does seem a bit daft that the mirrors are constantly heated, especially in summer...
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  9. TwistedMind
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    TwistedMind Long Live The A6

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    [Oct 23, 2012]
    2 Screws under the mirror, pop off the bottom trim. put your han inside then pop the glass out. Disconnect the 2 wires on the glass and replace.

    Take it easy with the 2 screws. The heads break off easy
    #8
  10. TwistedMind
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    TwistedMind Long Live The A6

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    [Oct 28, 2012]
    Update,

    Purchased a mirror from ebay for a tenna. What a mistake. Just a peice of cut class with a electronic heat pad on the back. No thermostat

    No wonder they burn out quick. Time to shell out and get a OEM from audi.
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  11. amimmortal
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    amimmortal Member

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    [Jan 20, 2013]
    Hi all,

    I never got round to fixing my mirror, and with the recent cold snap, the mirror has now cracked. There is also a small burn mark on the mirror housing, just next to the start of the crack.

    So would I be right in saying that the wires have now properly burnt out? Incidentally, one half of the mirror is still heated. It's possible the crack was caused because of this.

    I had a go at removing the housing to have a look, but although I managed to remove the screws no problem, it was proving difficult to remove the lower trim. So rather than forcing it, I just left it.

    Would anyone happen to know how much it might cost to get the wiring sorted and a new mirror fitted?

    Thanks!

    A.
    #10
  12. evomaster3000
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    evomaster3000 Member

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    [Jan 24, 2013]
    I was considering re-wiring the rear window de-mister switch to the mirrors (like Renault do on a 2002 Laguna for example) via this link:

    AudiWorld Tech Articles

    Ancidently how much is a genuine OEM mirror from Audi? I think maybe an eBay one may work well with the re-wiring to the rear window switch, lets face it in the UK how often does the temperature go above 12 degrees C? I may try this mod when I get my A6 back on the road in a few weeks.
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  13. TwistedMind
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    TwistedMind Long Live The A6

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    [Jan 28, 2013]
    Amimm, you don't have to replace all of the wiring. Just cut off about 2 inch of the wire. Normally there is a lot of carbon buld up on the insite of the cables. And get rid of the rubbish spade connectors. Directly solder the mirror to the cables.
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