A question for the forum. I'm considering upgrading the front of my 2012 D4 which has Xenon headlamps to the later D4.5 Xenon with the nice DRLs.
I've checked the pinout for the connectors and the only additional wire needed is to power the DRL input. How do I do this on my vehicle? Is it a case of building a circuit with a relay that provides an ignition feed to the lights and switches off when the side lights are turned on? Or is the wire already present in the harness? Do I need to populate the connector for this pin or can it all be done inside the light?
Thanks in advance.1972 Range Rover Classic 2 door V8
2013 Land Rover Discovery 4 HSE - SCRAPPED
2016 Land Rover Discovery 4 Landmark
2022 Volvo XC40 T5 PHEV 282HP FWD 3 cylinder!
25th Aug 2017 9:35 am
dgardel
Member Since: 03 Nov 2009
Location: Greater Venice
Posts: 2025
But you'll loose the "surplus" high beam......Discovery 5 tdv6 HSE Corris Gray Outback Engineering Limited Edition IID Pro MV License
I've got some RIGID Industries LED Driving lights to fit, so I'm not worried in that respect, but it's a good point.1972 Range Rover Classic 2 door V8
2013 Land Rover Discovery 4 HSE - SCRAPPED
2016 Land Rover Discovery 4 Landmark
2022 Volvo XC40 T5 PHEV 282HP FWD 3 cylinder!
25th Aug 2017 11:41 am
Philip1972
Member Since: 10 Mar 2017
Location: Gloucestershire
Posts: 1072
I did the same and they are plug and play.
All you need to do is enable them in the CCF with an IID tool.
Caveat-the flash wont work without your headlamps on and I havent bothered do the mod to make this work.
A kind sole did send me the "how to", but even with that it was way beyond my capabilities
25th Aug 2017 1:03 pm
CFB
Member Since: 02 Dec 2005
Location: Bradford, West Yorkshire
Posts: 6100
Isn't headlight flash a mandatory requirement for MOT etc?2020 BMW X1 18d XDrive X-Line Auto
25th Aug 2017 2:11 pm
Famousfive
Member Since: 12 Aug 2014
Location: Southampton
Posts: 1806
never heard of the flash not working when you upgrade to these lamps - any intel on what mod you read up on Philip1972 Stolen - D4 Loire Blue
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25th Aug 2017 2:38 pm
Philip1972
Member Since: 10 Mar 2017
Location: Gloucestershire
Posts: 1072
This is what I was sent:
"Basically you need to run power from the battery, to the lamps via a relay. The relay will be triggered from the high beam wire. Here's a simple diagram. Ignore the other feed to my spots. The other diagram shows the PIN numbers and wire colours on the plug you tap into. Really easy to do"
25th Aug 2017 4:47 pm
Philip1972
Member Since: 10 Mar 2017
Location: Gloucestershire
Posts: 1072
Like I said, gobbledy gook to me lol
25th Aug 2017 4:48 pm
Philip1972
Member Since: 10 Mar 2017
Location: Gloucestershire
Posts: 1072
CFB wrote:
Isn't headlight flash a mandatory requirement for MOT etc?
I don't think it is, I know they check main beam alignment, but not spot lamp alignment. You don't need to have main beam enabled, but I think the Xenons will flash anyway. If not, you can simply turn the lights on if you need to flash someone.1972 Range Rover Classic 2 door V8
2013 Land Rover Discovery 4 HSE - SCRAPPED
2016 Land Rover Discovery 4 Landmark
2022 Volvo XC40 T5 PHEV 282HP FWD 3 cylinder!
25th Aug 2017 4:52 pm
Philip1972
Member Since: 10 Mar 2017
Location: Gloucestershire
Posts: 1072
25th Aug 2017 4:59 pm
dgardel
Member Since: 03 Nov 2009
Location: Greater Venice
Posts: 2025
Famousfive wrote:
never heard of the flash not working when you upgrade to these lamps - any intel on what mod you read up on Philip1972
on MY2009-2013 you have the Bi-Xenon (low/high beam) AND the H7 highlamp (on each headlamp)
I'm not so worried about main beam, I think that's fixable, it's the issue with pin 8 on the new lamps for the 24 LEDs on the DRL.1972 Range Rover Classic 2 door V8
2013 Land Rover Discovery 4 HSE - SCRAPPED
2016 Land Rover Discovery 4 Landmark
2022 Volvo XC40 T5 PHEV 282HP FWD 3 cylinder!
25th Aug 2017 5:43 pm
spikekellyrm
Member Since: 23 Jul 2015
Location: Manchester
Posts: 662
Those are my diagrams Phillip
Just enable 'DRL Standard' using the iid tool and the DRLs will work.
As for high beam, you shouldn't fail an MOT as the lights are turned on when they flash them. They will however need to have a simple modification to allow the bulbs to light up when flashing main beams whilst dipped are turned off.
I spent weeks researching through this site and even offered to pay some professional to do it for me. They wanted an extortionate amount of money and couldn't achieve what I wanted. So off I went with my research and solved it myself. I asked them if they'd follow the diagram and carry out the job for me. They told me it's the Same price! I told them to stuff it and I'd attempt it myself. They then emailed me asking for the diagrams, pretty cheeky. Anyway, it's a simple fix, you can teach yourself using YouTube easily enough.D4.5 Facelift, Lazer ST4, Prospeed underbody and rack, IID BT, Compomotive/BFG KO2, Series MFlaps, RAI, Dog Gd+XBB, Alive Tuned, T-Max/YellowTop, RemoteFBH, GlassesMod, WheelWinchMod, Jack Mod, LED Mods, Seized Crank Mod....
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