Heated door mirror

Alpine · Oct 12th, 2018, 20:55

I'm referring to the demist/de-ice on the door mirror, when you put the rear screen demist on. Does not work on the driver's side.

Is there a most likely problem? I see you can get new mirror glass on ebay, is that a likely cause? If its likely a wiring problem I will probably just live with it.

rogerb · Oct 13th, 2018, 00:06

It could be a broken heater or cables.
You could try measuring if you have volts across the terminals on the mirror.
I would get a spare first any way in case you damage the one on the car removing it to test it.

Luxobarge · Oct 13th, 2018, 08:55

Favourite suspects are either the heating element in the mirror, or a broken wire in the harness as it passes from the body to the door - it flexes here every time you open the door, and thus driver's side is most common.

You need to test it all out with a meter and see what's what.

ASt85 · Oct 13th, 2018, 09:38

First thing to do is to remove the mirror and make sure the heating element is present - not all generic replacement mirrors will have the element included so the "fitter" needs to remove the original heater and bond it on to the new mirror.

It frequently means that when mirrors are broken and replaced the element doesn't get re-fitted.

Alpine · Oct 16th, 2018, 21:55

thanks all. I will have a good look at the mirror to start with

Oct 12th, 2018, 20:55	#1
Alpine Senior Member Last Online: Apr 13th, 2024 08:14 Join Date: Jan 2012 Location: Leeds	Heated door mirror I'm referring to the demist/de-ice on the door mirror, when you put the rear screen demist on. Does not work on the driver's side. Is there a most likely problem? I see you can get new mirror glass on ebay, is that a likely cause? If its likely a wiring problem I will probably just live with it. __________________ Phil '98 V70 2.5T (manual '99MY)

Oct 13th, 2018, 08:55	#3
Luxobarge Premier Member Last Online: Today 15:28 Join Date: Jan 2011 Location: Horne (Nr. Horley)	Favourite suspects are either the heating element in the mirror, or a broken wire in the harness as it passes from the body to the door - it flexes here every time you open the door, and thus driver's side is most common. You need to test it all out with a meter and see what's what. __________________ Some people are like Slinkies, they serve no useful purpose but they still bring a smile to your face when you push them downstairs.

Oct 13th, 2018, 09:38	#4
ASt85 Premier Member Last Online: Today 14:11 Join Date: Aug 2010 Location: Walderslade....Kent	First thing to do is to remove the mirror and make sure the heating element is present - not all generic replacement mirrors will have the element included so the "fitter" needs to remove the original heater and bond it on to the new mirror. It frequently means that when mirrors are broken and replaced the element doesn't get re-fitted. __________________ The saddest moment is when the one who gave you the best memories....becomes a MEMORY V70 SE 2004 2.3L T5 Geartronic, C70 2005 2.0T Automatic, Sold 2.4l 20 Valve Automatic Torslander Sold 854 GLT 20v Auto

Oct 16th, 2018, 21:55	#5
Alpine Senior Member Last Online: Apr 13th, 2024 08:14 Join Date: Jan 2012 Location: Leeds	thanks all. I will have a good look at the mirror to start with __________________ Phil '98 V70 2.5T (manual '99MY)

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Oct 13th, 2018, 00:06	#2
rogerb Lets take it to bits Last Online: Apr 23rd, 2023 09:01 Join Date: Dec 2004 Location: Near Wellingborough	It could be a broken heater or cables. You could try measuring if you have volts across the terminals on the mirror. I would get a spare first any way in case you damage the one on the car removing it to test it.

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