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wonky Bi-xenin headlight ?

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I have a 2015 Octavia Scout with bi-xenons that follow the steering.

even though we a re RHD in Australia the RH headlight steers to the right at low speeds ( ~ <60 KM/h ).  At least one other owner with RHD has the same problem. 

It occurs to us that this might be correct behaviour in LHD countries where using the RH headlight to light the road edge could be an advantage. 

But here in Australia it just shines into the eye of the oncoming traffic.

If it is default behaviour I suspect that it applies to other models with steering biXenon headlights

Anybody seen an adaptation or coding that controls this behaviour and that could be modified to work on the left?

I

 

Trevor

Mirboo

Australia

It'll probably be part of the coding or an adaption channel in the xenon controller.

 

Can you post a full autoscan from VCDS or similar and an adaption map of the xenon controller? That should let us compare to other cars for any obvious mistakes :)

  • Author

OK, will do a scan tomorrow and send.

 

Trev

Folks - I had this with my Bi-Xenon headlights on my 2016 Octavia Scout.  Seriously nightmare - and the ONLY way I could get the lights to play nicely - was to drive fast.  In essence, the steerable headlights originally came from the VRS range of cars, and they got put directly into the other Octavia's without any mods.   The headlights are designed to follow your direction of travel and the faster you move, the 'straighter the beam becomes'. Its madning, because you end up with one headlight pointing in one direction and the other in a different direction.  Not ideal for the dark nights of Scotand!!!!  Therefore, my only solution was to switch off the auto-ness part of the headlights and manually switch them on/off and onto main-beam at the switch....if you do that, you essentially disable the steering mechanism for the headlights. 

 

I saw a tech-note from Skoda UK that this behavour was quite 'normal'.  I begged to differ.  I would suggest to get your vehicle ODBEleven Scanned, and then look at the latest firmware updates for the car, because you may find there is a firmware for the lighting controller which fixes this problem....and no - Skoda dealers don't do updates, because it costs them money.

  • 2 weeks later...

So I've just checked the info I have in German about the AFL (Advanced Front Lighting) which obviously relates to LHD vehicles. AFL on LHD turns the left hand side headlight to the left and down.

 

So it seems normal if your RHD is turning the right hand headlight.

 

I think you would probably need to disable the AFL altogether. 

  • Author

Hey thanks for that Phil. 

I wonder at the logic of turning a headlight towards oncoming traffic, even if it is lowered slightly...  Especially since you cannot see anything in that direction if there is oncoming traffic.  You do not need to see in that direction because you can see the lights of oncoming traffic.  You generally use the road edge to position the car on the road so better to be able to see that than the middle of the road. 

I also wonder if I could insert the LHD coding so the nearside headlight turns to illuminate the verge and raodside at town speeds?

 

thanks again

 

trevor

22 hours ago, trevh said:

Hey thanks for that Phil. 

I wonder at the logic of turning a headlight towards oncoming traffic, even if it is lowered slightly...  Especially since you cannot see anything in that direction if there is oncoming traffic.  You do not need to see in that direction because you can see the lights of oncoming traffic.  You generally use the road edge to position the car on the road so better to be able to see that than the middle of the road. 

I also wonder if I could insert the LHD coding so the nearside headlight turns to illuminate the verge and raodside at town speeds?

 

thanks again

 

trevor

If you're looking for logic...

Driving at town speeds it's logical to presume that you don't need to see a hundred yards ahead of you if traveling at 30mph or thereabouts, but it's more relevant to see the road at the drivers side towards the pavement so that you have a better chance of seeing someone stepping off the pavement and wandering into your path. The near side (passenger side) already points to that side by default, so not necessary.

Once up to motorway speeds you're more likely to need to see further up the road due to the speed you're traveling, and in this situation the headlights aim further in front rather than to the side.

I know, I had the same issue with the Octavia I had and it doesn't seem like a good idea in practice, in fact it annoyed me to the point I never used the lights in Auto function, mainly due to living in the country and hardly ever driving at night in town. But fact remains there's a reasonable explanation for the lights behaviour.

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