Thread: Discovery 3 LED trailer lights

worked a treat all sorted thanks heaps to slug burner and every one else. there really is a wealth of knowledge on this site. One thing i am finding is that the resistors don't seam to be getting hot only warm and that is being generous. So even better i guess.

thanks again
and cheers.

Originally Posted by coopers1969

worked a treat all sorted thanks heaps to slug burner and every one else. there really is a wealth of knowledge on this site. One thing i am finding is that the resistors don't seam to be getting hot only warm and that is being generous. So even better i guess.

thanks again
and cheers.

The temperature the resistors get to is dependent on the how well the heatsink works, this comes down to surface area. If you have a big metal cased resistor that will be the heatsink and connecting to a metal box will help shed heat even more. There should be a wattage rating on the resistors you got.

Hi slug Burner

yeah they are the Narva ones which are 21 watts any also have an aluminium heat sink as well i think this is why they don't heat up to much.

HI,
I'm at a bit of a loss as to WHY LR have this issue in the first place? If my trailer lights are flashing (even dimly) or not working and I get pulled over who's fault is it? Mine as the operator of the vehicle or LR for selling a vehicle that doesn't work with trailers but they sell the towing gear and NO mention of issues (I just bought a new D4 after having had a D3 that never worked properly with trailers)? To be honest I am yet to connect my D4 to the trailer with LEDs.
Any one care to offer advice?
It's not like LR can't know of it and haven't had time to address it.


regards
Peter

Originally Posted by pbhawkin

HI, I'm at a bit of a loss as to WHY LR have this issue in the first place? If my trailer lights are flashing (even dimly) or not working and I get pulled over who's fault is it? Mine as the operator of the vehicle or LR for selling a vehicle that doesn't work with trailers but they sell the towing gear and NO mention of issues (I just bought a new D4 after having had a D3 that never worked properly with trailers)? To be honest I am yet to connect my D4 to the trailer with LEDs. Any one care to offer advice? It's not like LR can't know of it and haven't had time to address it. regards Peter

My Touareg was the same with led lights in 2008.
VW updated software many years ago, they told me that they did it at the service, and to put the parkers on when I tow....and what do you know.....all LEDs work on all trailers.
So yep...LR can fix the issue.

Brett....

Originally Posted by pbhawkin

HI,
I'm at a bit of a loss as to WHY LR have this issue in the first place? If my trailer lights are flashing (even dimly) or not working and I get pulled over who's fault is it? Mine as the operator of the vehicle or LR for selling a vehicle that doesn't work with trailers but they sell the towing gear and NO mention of issues (I just bought a new D4 after having had a D3 that never worked properly with trailers)? To be honest I am yet to connect my D4 to the trailer with LEDs.
Any one care to offer advice?
It's not like LR can't know of it and haven't had time to address it.


regards
Peter

What started as a feature has now been made into a PIA as a result of LED lights replacing trailer incandescent globes. A small business opportunity results from these sort of things but the window will close soon as manufacturers fix these things in order to remain competitive with the opposition.

Originally Posted by pbhawkin

HI,
I'm at a bit of a loss as to WHY LR have this issue in the first place? If my trailer lights are flashing (even dimly) or not working and I get pulled over who's fault is it? Mine as the operator of the vehicle or LR for selling a vehicle that doesn't work with trailers but they sell the towing gear and NO mention of issues (I just bought a new D4 after having had a D3 that never worked properly with trailers)? To be honest I am yet to connect my D4 to the trailer with LEDs.
Any one care to offer advice?
It's not like LR can't know of it and haven't had time to address it.


regards
Peter

The D4 has it's own LED's and I have not had a problem with trailer lights working, either globes or LED's. However if you want to the D4's automatic trailer stability program to activate, you will have to install a resistor ( or globe ) in one indicator circuit on your LED trailer as per the numerous posts on the subject.

Have just bought a D3 and had all the electrics fitted only to take it home and suffer the flickering indicator issue. Thanks to this thread I have now been able to rectify this with a very happy and cheaper outcome.

Thanks to all who provided some great commentary and circuit diagrams.

Cheers

Malc