DRL gone yellow and dim

[DigitalSushi]

These led strips also work as the indicators.

not entirely sure how they work internally but if there is a short between the drl and the indicator circuit then both bulbs may be activated by the drl circuit but only get half the power due to the short so you end up with a dim orange and dim white combining to make the dim yellowish.

just a thought, could be nonsense though

 

[Jay5959]

These led strips also work as the indicators.

not entirely sure how they work internally but if there is a short between the drl and the indicator circuit then both bulbs may be activated by the drl circuit but only get half the power due to the short so you end up with a dim orange and dim white combining to make the dim yellowish.

just a thought, could be nonsense though

Not on the preface lift models they don’t mate, only white drl. There’s a small bulb for the indicator under the strip in the middle of the unit

 

[Atanas]

 

[callliope]

Hello guys, i have almost the same problem.
But to me it seems it is not fully DRL yellow just only some part of it, as you can see in photos.
My Leon is 110k km Face-lift model, so it's going to yellow also when I use the blinker.
Maybe some short circuit ? I'm thinking to do this lights reset from Settings, maybe it will do something.
Some advices ? does it worth to buy new DRL module, or maybe the problem is from inside headlight led tube?

 

[cairus]

Completely out of the blue, but maybe the LED driver module for the TFL is defective

 

[callliope]

Completely out of the blue, but maybe the LED driver module for the TFL is defective

Led driver module for TFL?
I think there is only on module for DRL, the one above my post.
Also what tfl means ?

 

[cairus]

sorry, thought from German. TFL = Daytime Running Light... every headlight has the module for it.

5F0941476

 

[callliope]

sorry, thought from German. TFL = Daytime Running Light... every headlight has the module for it.

5F0941476

I was thinking about this, but i don't know how exactly works.
Like, is it possible only half of the DRL to be dimmed and the source of problem to be DRL module ??? My logic says no, but i repeat, i didnt check the drawings...

 

[cairus]

as they say in Lotto, "everything is possible" it was an idea of mine

 

[GlekkeMatrak]

Guys check out this video I found about this topic on an Audi A3. It clearly shows the same sort of issue and the possible causes and remedies. Has nothing to do with coding, rather just the module or the tubes. Give it a watch.

 

[Noumenon]

Most likely DRL tube burned where it connects to the DRL board with LEDs.

Posting links to MK3 replacement parts:

DRL tube - https://a.aliexpress.com/_ExKwKsu
DRL board - https://a.aliexpress.com/_Eyubq1a
Headlight glass - https://a.aliexpress.com/_EvpgTfa

 

[callliope]

So i disassembled both and found out there was burned spot on LED module, changed it and not much improvement because also the tube inside has a small burn area, i saw on some videos the guys cleaned it somehow... but the electrician which I went to was afraid to try cleaning it.
Now the burned area is not refracting the light so that's why still dim...
@Noumenon this is applicable also for face-lift modules ? i mean the headlight shell and tube inside?

 

[Noumenon]

@callliope DRL boards and tubes 100% won't fit.
Not sure about headlight shell.

You can scrape the burned end of the tube with razor and then polish it.
Or you can try to clean it with a bit of acetone on a cotton ball, it dissolves plastics.

 

[Noumenon]

@callliope I found DRL boards and headlight cover for facelift model, no luck with DRL tubes:

cover - https://a.aliexpress.com/_EJi4aC0
DRL board - https://a.aliexpress.com/_Ex16yFQ

 

[callliope]

@callliope DRL boards and tubes 100% won't fit.
Not sure about headlight shell.

You can scrape the burned end of the tube with razor and then polish it.
Or you can try to clean it with a bit of acetone on a cotton ball, it dissolves plastics.

So actually this is how it's looking on my car:
So I changed the module but still not so much improved, maybe placebo effect.