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Model specific boards => Golf mk4 => Topic started by: Mr_Orange on 17 October 2010, 16:48

Title: Heated mirror fault
Post by: Mr_Orange on 17 October 2010, 16:48
Back in the summer a Vagcom scan showed up faults for both the heated mirrors;
00943 - Heated Exterior Mirror: Driver Side (Z4)
00944 - Heated Exterior Mirror: Passenger Side (Z5)

I got round to looking at them today.....

After some fun getting the casings off (thanks Bentley manual), both were still plugged in, however with a multimeter there was no voltage at either mirror?

Mirror selector is at 0
The rear screen de-mister works fine
They share the same fuse yes?

Help
Title: Re: Heated mirror fault
Post by: richw911 on 17 October 2010, 16:59
Yes same fuse  :undecided:

Has the door card been off recently could be a plug undone in the door?
Title: Re: Heated mirror fault
Post by: oliver07 on 17 October 2010, 20:21
the elements go on these!
 was there power if you take  the wiring off the mirror ?
 if so you will need 2 new mirror glasses
 :wink:
Title: Re: Heated mirror fault
Post by: tech1889 on 17 October 2010, 20:29
yes as above check the wiring minus the mirror.. if you got power then the heater element has died.. they are a common propblem on all cars.. my drivers side one has gone ive got no codes but i no its the element..
Title: Re: Heated mirror fault
Post by: houston on 17 October 2010, 22:31
what about the switch for moving the mirrors on the door card? do these not make any faults? i know it stops the mirrors working if its not centred, could be a fault there?

does vagcom register as the elements not working if its not centred?
Title: Re: Heated mirror fault
Post by: T_J_G on 18 October 2010, 15:21
You're more than  welcome to try a glass from mine. (not that i know either works)

New glass is about 35 notes a side from VW.
Title: Re: Heated mirror fault
Post by: tech1889 on 18 October 2010, 15:38
tjg would you recomend buying the glass form vw or will a ebay seller surfice as its not a crucial part ??
Title: Re: Heated mirror fault
Post by: T_J_G on 18 October 2010, 15:41
tjg would you recomend buying the glass form vw or will a ebay seller surfice as its not a crucial part ??

The last two i've bought, i've bought s/h genuine glass from eBay for about 12 notes a go. You're taking a risk though but TBH I never really use the heated mirrors. REmeber they're blue tinted as well.
Title: Re: Heated mirror fault
Post by: tech1889 on 18 October 2010, 15:42
yer i no its a risk but like you said i probably wont replace as i dont use the heated mirrors much..
Title: Re: Heated mirror fault
Post by: T_J_G on 18 October 2010, 15:43
My mirrors seem to take a beating where I live. So not too bothered. Going to get some new casing and spray them matt black as then I can just rub down everytime they get a mark on them (very common for me)

Title: Re: Heated mirror fault
Post by: tech1889 on 18 October 2010, 15:44
thats a point i had a brush with a panel van and rubbed paint down to plastc on my mirror  :grin:
Title: Re: Heated mirror fault
Post by: T_J_G on 18 October 2010, 15:44
My wing mirrors get put in bushes all day long going up and down these lanes!
Title: Re: Heated mirror fault
Post by: tech1889 on 18 October 2010, 15:46
yer but you cant beat lane driving !
Title: Re: Heated mirror fault
Post by: T_J_G on 18 October 2010, 15:49
Yes you can, most people round here tend to drive on my side of the road :liprsealed: anyway we're taking this off topic!
Title: Re: Heated mirror fault
Post by: Mr_Orange on 19 October 2010, 12:17
If there's no voltage at the mirrors I'm doubtful another set of glass will work, but I'm willing to give it a go.  Will PM you Mr Tim!
Title: Re: Heated mirror fault
Post by: Mr_Orange on 20 October 2010, 12:29
Mirror faults cleared, mirrors still donn't work  :undecided:

Has someone with heated mirrors (that work) got a picture of their mirror switch?  I just spotted some switches on ebay that look different?  Ours is L - 0 - R  These others have a little mirror symbol between the L and R ?

A new switch is next on the agenda.
Title: Re: Heated mirror fault
Post by: tech1889 on 20 October 2010, 13:48
mine work and mine is l-0-r .... is it the switch thats at fault then ??
Title: Re: Heated mirror fault
Post by: T_J_G on 20 October 2010, 14:39
Worth trying a glass that you know works first. :liprsealed:

Also look into the passat mirror switch 'mod'
Title: Re: Heated mirror fault
Post by: tech1889 on 20 October 2010, 14:41
passat mirror switch mod ??

Just looked at the paasat mod if mine ever goes i will do this as looks nice  :smiley:
Title: Re: Heated mirror fault
Post by: Mr_Orange on 20 October 2010, 16:32
mine work and mine is l-0-r .... is it the switch thats at fault then ??

Cool mate, thanks.  I can rule that one out.  Must be a heated mirror symbol on later ones or something?

Worth trying a glass that you know works first. :liprsealed:

Also look into the passat mirror switch 'mod'

Maybe when it aint pi55ing it down next?!

What's this Passat mod pre-tel?
Title: Re: Heated mirror fault
Post by: Rhyso on 20 October 2010, 16:34
Mine had a heated mirror symbol on it

51 plate so an MY02 build  :nerd:
Title: Re: Heated mirror fault
Post by: Mr_Orange on 20 October 2010, 16:35
Mine had a heated mirror symbol on it

51 plate so an MY02 build  :nerd:

Cheers matey  :wink:  What's this Passat mod?
Title: Re: Heated mirror fault
Post by: Rhyso on 20 October 2010, 16:37
Mine had a heated mirror symbol on it

51 plate so an MY02 build  :nerd:

Cheers matey  :wink:  What's this Passat mod?

Different switch - its more of a push-type than a rotary know affair; that's if its the one i'm thinking of  :undecided:
Title: Re: Heated mirror fault
Post by: tech1889 on 20 October 2010, 16:45
http://uk-mkivs.net/forums/t/380627.aspx  :wink: i got links on tap too  :evil:
Title: Re: Heated mirror fault
Post by: Mr_Orange on 20 October 2010, 16:54
http://uk-mkivs.net/forums/t/380627.aspx  :wink: i got links on tap too  :evil:

Me like!   :cool:  I'll price it up.

Only likely if changing the glass doesn't work.
Title: Re: Heated mirror fault
Post by: Mr_Orange on 19 December 2010, 12:33
http://uk-mkivs.net/forums/t/380627.aspx  :wink: i got links on tap too  :evil:

Me like!   :cool:  I'll price it up.

Only likely if changing the glass doesn't work.

Quick update just to close this thread:

In the end it was the glass.  I have now replaced both sides and heated mirrors work fine.

The lack of voltage at the cables was a red-herring, still don't understand that....  :undecided: