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Morepower



Member Since: 08 Jan 2013
Location: Fife, Scotland
Posts: 630
New Zealand 
Heated Mirror Wiring
Hi Guy's, Iv'e bought some heated mirror elements and have mounted them up and drilled the doors and run wiring through to the engine bay etc...
However, I'm undecided about the best way to power them... Do I piggy back of the screen wiring (so they come on with the heated screen)... Do I mount a secondary switch with a separate power feed etc etc...
Anyway... If any body has any pictures and wiring diagrams that would be much appreciated as I'm looking for any suggestions...


Cheers

Tim It doesn't matter how bad it is, It can always get worse...

2013 Bowler 110 (Sold)
2016 Bowler 90 Rally Spec (Sold)
Post #450740 31st Aug 2015 7:40am
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Mike_B



Member Since: 23 Jan 2011
Location: Moray
Posts: 550
United Kingdom 2006 Defender 110 Td5 USW Java Black
Most common way is to wire them separately from a relay (usually in the seat box ner the battery. The activation pin on the relay is fed from a splice from the windscreen wiring. That way you're only using the windscreen wiring to provide a relatively low current to the relay, which provides an independent fused supply to the mirrors.

Generally wiring it to the window switch makes sense as you want the mirror heaters on when you need the window heated. Otherwise it'd be another switch taking up space on your dash!

Make sure you protect the cable when it passed through and sheet metal, and when it's near the doors, so it doesnt chafe and short out.
Post #450788 31st Aug 2015 10:03am
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Rosco



Member Since: 03 Dec 2010
Location: Burntwood
Posts: 1833
United Kingdom 2015 Defender 110 Puma 2.2 XS CSW Montalcino Red
Tim, you'll probably find this of interest

http://defender90xs.blogspot.co.uk/2014/10...ation.html 2007 - Stornoway Grey 90 XS SW - Gone
2002 - Black Discovery II - Gone
2014 - Montalcino Red 110 XS SW
Post #450794 31st Aug 2015 10:22am
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leeds



Member Since: 28 Dec 2009
Location: West Yorkshire
Posts: 8581
United Kingdom 
Another set of photographs show installation HERE and slightly more info here


Brtendan
Post #450800 31st Aug 2015 10:40am
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boode



Member Since: 11 Apr 2012
Location: Devon
Posts: 429
England 2003 Defender 90 Td5 HT Rutland Red
Have a separate switch (and relay) for the heated mirrors
I find that in the rain/mist/drizzle the heat will keep the mirrors clearer from water and you would not want the heated screen on
Post #450802 31st Aug 2015 10:45am
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Theater



Member Since: 27 Sep 2010
Location: Pisa Italy
Posts: 514
Italy 2009 Defender 110 Puma 2.4 SW Galway Green
Installing Mirror Heating to a Land Rover Defender by Espen S. Johnsen :

http://la7dja.org/defender/mirror-heating/ Marco

Defender 110 "SW" SE Galway Green MY 2009
Ex Defender 90 "SW" S Santorini Black MY 2010
Post #451191 1st Sep 2015 7:57pm
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ken



Member Since: 18 Aug 2009
Location: Banging Birds with my bitches !!
Posts: 4328
United Kingdom 
Not once have I bothered with a separate switch I always used the heated screen switch with absolutely no issues Thumbs Up The draw is well within the switch and wiring tolerances

As always your motor your choice Thumbs Up
Post #451264 2nd Sep 2015 5:47am
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ken



Member Since: 18 Aug 2009
Location: Banging Birds with my bitches !!
Posts: 4328
United Kingdom 
Oh its 1.55 amp per side
Post #452394 5th Sep 2015 7:38am
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Lops



Member Since: 17 Jun 2019
Location: Worcestershire
Posts: 7
England 2007 Defender 110 Puma 2.4 CSW Scotia Grey
ken wrote:
Not once have I bothered with a separate switch I always used the heated screen switch with absolutely no issues Thumbs Up The draw is well within the switch and wiring tolerances

As always your motor your choice Thumbs Up



so do you wire directly into the switch or off the relay? sorry electrical noob
Post #801220 7th Nov 2019 3:34pm
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ZeDefender



Member Since: 15 Sep 2011
Location: Munich
Posts: 4731
Germany 2011 Defender 110 Puma 2.4 SW Baltic Blue
Mine come straight off the screen wiring, as I always want them all on at once - haven't had a problem since I fitted them (8 years). Tell someone you love them today because life is short.
But shout it at them in German because life is also terrifying and confusing...
Post #801412 8th Nov 2019 9:48pm
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