Discovery 3 LED trailer lights

Ranger still run the resistive cable. At least all the new ones on site do.

The issue is there is no standard for lighting that is followed. If you run LED indicators you can draw significantly different currents depending on how many emitters and what type. Then running the industry standard filament bulb adds another level of complexity.

The VW update has formed a work around - which isn't a bad idea, by loading up using Parker circuit to provide a reference draw from the vehicle and trailer. Clever mod. But if you forget to turn the lights on (many just run auto) you have no functionality either.

Note: The anti-sway function remains intact without the trailer detected.

I certainly don't see the current setup as an "issue".

When I have my garden trailer (with LED lights) hooked up -

The reversing beeper goes off when I am in reverse (so what, I don't spend that much time in reverse anyway), and

My trailer light indicators on the dash don't illuminate. I always check that my trailer lights are all working when I hook up anyway, so this is hardly a concern.

As Tombie has said, the anti-sway function works regardless of whether a trailer electrical circuit is detected or not, so no problem there either.

And I'm not that old yet that I'll drive down the road and forget that I've got a trailer attached if I haven got a light on the dash to remind me it's there. :p:p:p

Just checking... So does a MY15 D4 still need to use the pulse buster? I have one from my 2010 D4. I was just hoping to be able to ditch it when i went to a newer model?

Peter

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Originally Posted by RoverLander

Just checking... So does a MY15 D4 still need to use the pulse buster? I have one from my 2010 D4. I was just hoping to be able to ditch it when i went to a newer model?

Peter

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I'd hold onto it :)

Thanks for the great info in this thread.

I need to add Relays & resistors to my 2007 Disco3 V8, as doing 1st towing trip with my dad's new Bushlapa offroad caravan that has LED's fitted as standard, to Etosha in last week of April.

I could only find 18 Ohm 10w aluminium encapsulated resistors locally, but will use 2x in parallel to get 9 Ohm & 20w per relay. Ebay nowadays takes over 40 days to Namibia, so can't wait that long for the LR12 resistors.

I see most recommend 25w, so will have to see. Worse case I will have to add another for 3x in parallel.

Guys I have a MY14 D4 and can confirm after towing out LED caravan that this is still an issue.

However after travelling a distance with the van I've realised I don't care, just like others who have posted. When I put it in reverse I just turn the sensors off, big deal.

And the indicators don't illuminate on the dash? Who cares. Check your trailer lights when connecting.

Go and spend the money on some better mods for your Disco or trailer instead I reckon.

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Originally Posted by ScottD4

Guys I have a MY14 D4 and can confirm after towing out LED caravan that this is still an issue.

However after travelling a distance with the van I've realised I don't care, just like others who have posted. When I put it in reverse I just turn the sensors off, big deal.

And the indicators don't illuminate on the dash? Who cares. Check your trailer lights when connecting.

Go and spend the money on some better mods for your Disco or trailer instead I reckon.

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I suppose the only thing that stands out in this whole debate is: "If Land Rover are so cutting edge.. why is this an issue.. LEDs are pretty much the standard for trailers, vans etc. and have been for a few years." I'd probably rate this on a par with their crap navigation system.

After using my D4 for towing 1 tonne loads last weekend and today,I see there is an important reason for the D4 to know it has a trailer onboard.The gearbox changes its shift points to keep the engine in its peak torque band.
Makes it quite spirited!!!!
If you select off-road it tells you the height wont automatically rise.
Andrew

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Originally Posted by ScottD4

Guys I have a MY14 D4 and can confirm after towing out LED caravan that this is still an issue.

However after travelling a distance with the van I've realised I don't care, just like others who have posted. When I put it in reverse I just turn the sensors off, big deal.

And the indicators don't illuminate on the dash? Who cares. Check your trailer lights when connecting.

Go and spend the money on some better mods for your Disco or trailer instead I reckon.

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Get someone to follow you as you drive along. I have seen trucks that continuously flash their trailer lights as they test for the presence of the bulbs/trailer. Hopefully your vehicle is not doing the same thing.

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Originally Posted by Boggs

I suppose the only thing that stands out in this whole debate is: "If Land Rover are so cutting edge.. why is this an issue.. LEDs are pretty much the standard for trailers, vans etc. and have been for a few years." I'd probably rate this on a par with their crap navigation system.

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It is NOT "An Issue", It is a minor inconvenience.:angel:
All the European manufacturers have the same issue (BMW, Porsch'e, Mercedes Benz, Audi, VW, Ford) Its all to do with vehicle checks & monitoring of the electrical system. The only downside is if you tow a Van with LED's.
Simple fix, fit a resistive load or buy a ready made unit from many of the people before mentioned in other posts.

It is also a good idea to fit either as the vehicle will have all its electronic trickery working correctly,
Yes you can ignore the reverse sensors, ignore the Tell Tale when using the indicators, But would definitely want it working correctly for the Trailer Assist program.

Cheers