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mactheknife



Member Since: 08 Jul 2016
Location: Somerset
Posts: 51
United Kingdom 2004 Defender 110 2.5 TD CSW Baltic Blue
Installing headlight relays - for the novice!
Having just had to replace a headlight switch in my TD5 as it burnt out I'm planning on adding some relays to prevent a recurrence.

Has anyone got any simple guides on how to do it?
I've had a search about and there are some guides, however I'm struggling with good points to connect into the existing loom.

Any pointers in the right direction would be appreciated.
Many thanks in advance.
Post #586271 18th Dec 2016 11:51pm
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miker



Member Since: 13 Sep 2015
Location: Surrey
Posts: 1764
United Kingdom 1999 Defender 110 Td5 CSW Rioja Red
When I get round to sorting mine, I plan to take a permanent feed from the alternator, fuse it there to 30A.

From there into the relay.
Trigger the relay using the existing wires feeding the headlight plugs.
Earths all back to a convenient bolt on the engine block.
Splice the output of the relays into the original headlight plug wiring with either heatshrink butt crimps or solder and heatshrink.

If none of that makes any sense I'll get a diagram sorted!
Post #586274 18th Dec 2016 11:59pm
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mactheknife



Member Since: 08 Jul 2016
Location: Somerset
Posts: 51
United Kingdom 2004 Defender 110 2.5 TD CSW Baltic Blue
Thanks Miker.

I'll have a look for a suitable point on the alternator to tap into
Post #586277 19th Dec 2016 12:27am
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miker



Member Since: 13 Sep 2015
Location: Surrey
Posts: 1764
United Kingdom 1999 Defender 110 Td5 CSW Rioja Red
The output terminal is from memory an m8 stud. Has two wires coming off it, one from the battery, one to the starter!
Post #586278 19th Dec 2016 12:45am
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mactheknife



Member Since: 08 Jul 2016
Location: Somerset
Posts: 51
United Kingdom 2004 Defender 110 2.5 TD CSW Baltic Blue
Ah that was the bit I was missing!
Post #586279 19th Dec 2016 12:52am
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RoddyK05



Member Since: 08 Apr 2015
Location: Inverclyde
Posts: 633
Scotland 2004 Defender 90 Td5 SW Yellow
I've just received a kit from LandReiziger to do this, it's plug and play. I used to make looms etc for my older cars, but buying quality off the shelf items now is so much easier and in most cases tidier. You should have a look for them.
Post #586291 19th Dec 2016 6:50am
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mactheknife



Member Since: 08 Jul 2016
Location: Somerset
Posts: 51
United Kingdom 2004 Defender 110 2.5 TD CSW Baltic Blue
Thanks Roddy, just been having a look on their site
Post #586440 19th Dec 2016 9:47pm
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Bluest



Member Since: 23 Apr 2016
Location: Lancashire
Posts: 4218
United Kingdom 2007 Defender 110 Puma 2.4 XS CSW Java Black
Just make sure you disconnect the battery before going anywhere near that stud on the alternator. I speak from experience Thumbs Up 2007 110 TDCi Station Wagon XS
Post #586442 19th Dec 2016 9:51pm
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mactheknife



Member Since: 08 Jul 2016
Location: Somerset
Posts: 51
United Kingdom 2004 Defender 110 2.5 TD CSW Baltic Blue
Hahaha, noted!
Post #586443 19th Dec 2016 9:54pm
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Scrawf



Member Since: 24 Jul 2016
Location: Matlock
Posts: 25
United Kingdom 2010 Defender 90 Puma 2.4 XS CSW Tamar Blue

Click image to enlarge
Post #586444 19th Dec 2016 10:00pm
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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
By "Gegio" from defendertricks.com


Click image to enlarge
https://defendertricks.com/2012/03/01/solu...che-fonde/


and youtube video :




 Marco

Defender 110 "SW" SE Galway Green MY 2009
Ex Defender 90 "SW" S Santorini Black MY 2010
Post #586457 19th Dec 2016 11:27pm
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mactheknife



Member Since: 08 Jul 2016
Location: Somerset
Posts: 51
United Kingdom 2004 Defender 110 2.5 TD CSW Baltic Blue
Thank you Marco.
Post #586458 19th Dec 2016 11:35pm
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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
mactheknife wrote:


Thank you Marco.



Wink Marco

Defender 110 "SW" SE Galway Green MY 2009
Ex Defender 90 "SW" S Santorini Black MY 2010
Post #586462 19th Dec 2016 11:50pm
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