Steve17
Member Since: 08 May 2016
Location: Essex
Posts: 422
  
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Good afternoon all I am looking for some help if possible. I am looking to change the front of my discovery 3 to a pre 2014 discovery 4 I have been offered a pair of discovery 4 headlights but they are the halogen ones. Can anyone please tell me have they fitted led bulbs in the dipped beam and will they set off the canbus warning. Also do they have the led fairy lights cheers steve
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 23rd Feb 2022 4:35 pm |
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Hardware
Member Since: 28 Jun 2016
Location: Hiding under the M60
Posts: 13041
  
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they won't have the fairy lights 
In terms of "will they fit" then LEDs should fit and I suspect all on offer will address the CANBus issue. Certainly, one's I've looked at stated they did.
As for MoT ... I was meant to ask my local MoT place if they would fail LEDs when they can't actually see them behind the projector lens ... but ended up someone else picked the D4 up for me so wasn't able to ask. .
Dean
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2011 D4 XS - OBD port protection, RLD spare wheel protector, All LED interiors lights, Timed Climate enabled, iiD tool paired.
2011 D4 Landmark - Stolen from same dealer before I paid for it
2011 D4 GS - Stolen whilst at dealer ... All LED interiors lights, DRLs, Spare Wheel protector.
1996 300Tdi - Eaten by tin worms
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| 23rd Feb 2022 7:23 pm |
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N5Fav
Member Since: 28 Jan 2021
Location: LEICESTER
Posts: 134
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The problem with the LED headlamp bulbs that I have seen,
The dipped beam has no pattern, and as such fails the MOT, I then looked and could see the bulbs were LEDs.
The problem is the headlamps are designed to operate with incandescent bulbs that have a specific 'focal point'. The light radiates from this focal point, the reflector (& lens on some lamps) then reflect this light in specific pattern to ideally give good lighting, without dazzling oncoming traffic.
The LED bulbs I have seen do not have a small focal point, and so cannot give a good beam pattern.
So even if the MOT tester can't see the bulb, if the beam pattern isn't correct, it should still fail it's MOT on that. 1994 Defender 300tdi 110 commercial
2007 Disco 2.7 XS Buckingham Blue
1959 Standard 10 Coffe & Cream
1974 Vauxhall Magnum 1800 estate Olivine Starfire Green
1994 Renault 19 Cabrio
1995 Kawasaki GPz 1100
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| 24th Feb 2022 1:01 pm |
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Steve17
Member Since: 08 May 2016
Location: Essex
Posts: 422
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After some searches I have found a pair of the Xeon lights so hopefully these will work as good as the ones in my d3 at the moment and also have the fairy lights
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| 25th Feb 2022 11:22 pm |
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