MHP
Member Since: 31 Dec 2011
Location: lydd
Posts: 2776
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that sounds about right, but someone with more knowledge will be able to give you more information 
Mark
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 18th Mar 2013 7:27 pm |
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Russell
Member Since: 24 Aug 2007
Location: Kent
Posts: 10564
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swansty wrote:Does anyone have a wiring diagram for spotlights? on previous cars i have taken a feed from the main beam +ve to a trigger a relay which has its own fused feed from the battery and installed a switch in the cabin. Is it the same on a D4 or is it a more complicated install?
Thanks
That is how a number of us have done it using a diode protected realy to stop spikes. MY17 D5 1st Edition Namib Orange
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| 18th Mar 2013 7:29 pm |
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swansty
Member Since: 21 Sep 2008
Location: Northern Ireland
Posts: 918
  
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Where do you put the diode? Ive never used one before?
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| 18th Mar 2013 7:46 pm |
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Nimrod
Member Since: 16 May 2012
Location: Warwickshire
Posts: 71
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The diode is in the relay, make sure it goes in the right way round.. the diode stops back EMF.. 
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| 18th Mar 2013 8:08 pm |
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swansty
Member Since: 21 Sep 2008
Location: Northern Ireland
Posts: 918
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So between the battery and the relay?
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| 18th Mar 2013 8:24 pm |
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cold_n_wet
Member Since: 05 May 2009
Location: Bergen
Posts: 1509
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Yep, Id be interested, also a picture of the wiring would be nice too
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| 18th Mar 2013 11:05 pm |
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Martin
Site Admin and Owner
Member Since: 06 Nov 2004
Location: Hook Norton
Posts: 18454
 
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Diode goes across the relay coil terminals to prevent the back EMF generated by the collapsing magnetic field affecting the system the coil is connected to.
It must be fitted with reversed polarity under normal operation, so anode to negative, cathode to positive. 06 D3 SE / 15 LR D90 XS SW / 88 LR 90 Td5 / 68 BMW 2000 ti
Any issues with the site let me know!
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| 18th Mar 2013 11:29 pm |
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swansty
Member Since: 21 Sep 2008
Location: Northern Ireland
Posts: 918
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Thanks for the info Martin. Do you or anyone have a diagram? Out of interest, why is a disco more susceptible to this emf issue than other cars?
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| 18th Mar 2013 11:54 pm |
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Martin
Site Admin and Owner
Member Since: 06 Nov 2004
Location: Hook Norton
Posts: 18454
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They're not, it's just good practice. 06 D3 SE / 15 LR D90 XS SW / 88 LR 90 Td5 / 68 BMW 2000 ti
Any issues with the site let me know!
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| 18th Mar 2013 11:59 pm |
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Blacknsilver3
Member Since: 21 May 2012
Location: Conwy North Wales
Posts: 441
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Love the look of the D3 and D3 with spots. Would the bracket fit the D3? Is there any bounce with them on? Could the bracket take bigger spots? LFs Xgt 240?
Mark With a few Mods.
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| 19th Mar 2013 3:58 am |
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DiscoDunc
Member Since: 08 May 2006
Location: Bristol
Posts: 16390
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I have made a bracket to take 4 spots, and its absolutely solid, made from 3mm steel bar. no vibration at all Duncan
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| 19th Mar 2013 8:18 am |
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Dave T
Member Since: 03 Jul 2009
Location: Glasgow
Posts: 6902
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Do you have a picture of your car with 4 spots on Dunc, what spots did you get? Joined the BMWX5 45e group
1994 Defender 90
2015 RRS Corris Grey/Black roof
2016 D4 Graphite Santorini Black
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2005 D3 S Maya Gold
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| 19th Mar 2013 12:36 pm |
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swansty
Member Since: 21 Sep 2008
Location: Northern Ireland
Posts: 918
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Does anyone have a pic of the diode fitted to the relay? Or a link to a supressed relay? I can't seem to find one online
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| 19th Mar 2013 9:42 pm |
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swansty
Member Since: 21 Sep 2008
Location: Northern Ireland
Posts: 918
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thanks martin, appreciate it
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| 19th Mar 2013 11:14 pm |
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