I was out last night and it was a bit foggy.

I noticed that when I switched to main beam, allthough it seemed that the headlights did what they were supposed to I.e. Lit up the road further away, there seemed to be a second smaller beam, on the offside pointing further out at about 30 degrees, and upwards at about 45 degrees.

This second beam isn't' the cornering light as far as I can tell as I was going forward in a straight tine.

Any thoughts?

Thanks

What headlights do you have. I believe that if you have halogen low beam you also have halogen high beam giving four separate light beams in total. But if you have xenon it's a bit different as the outer xenons do both low and high beam, plus the inner halogen headlights do high beam only but at the same time as the out xenon lights.

So potentially with all halogen set up you have four beams total, but with xenons you have six beams to compare (xenon low beam/xenon high beam + halogen high). Added to this the reflector has many combinations as to where the light is reflected. If you haven't noticed any problems previously I suspect there isn't one, just that you haven't noticed where the beam goes without the fog to show you. Also if you have adaptive xenons the beam pattern will move according to the vehicle speed.  

I've often noticed in fog myself the beams don't shine where I thought they should but apart from that under normal use they are fine.

Thanks for the input

Sorry I don't know what lights I have.

Driving on country roads at night has never been a problem

I was more concered that I might be dazzling oncoming traffic.

I'll mention it at the next service

I'm sure if you were dazzling oncoming traffic on a regular basis they'd let you know.

In misty/foggy conditions you will see stray light coming from headlight/highbeams. As light is angled well away from oncoming traffic it does not usually cause dazzle for other vehicles.   

When your lights come on at night do they do a little 'dance' by moving up, down, then in and out? If so you have Xenons. I had an issue with my high beam which turned out being a poorly fitted (by me) high beam halogen bulb. Access is tricky and seating them correctly is hit and miss.

Yes I must have Xenons as they do the dance.

So this stray beam must be a problem which I will mention at the next service.

Yes I must have Xenons as they do the dance.

So this stray beam must be a problem which I will mention at the next service.

 

Were you going at under 30mph? If so it might be the 'city mode' of the AFS lighting that is included with xenons.

Yes I was going quite slowly due to the conditions

That will probably be it then ;)

 

As explained on page 62 of this manual http://ws.skoda-auto.com/OwnersManualService/Data/en/Superb_3T/05-2011/Manual/Superb/B6_Superb_OwnersManual.pdf

 

Mode city

In the mode “city”, the dispersion of the cone of light in front of the vehicle is wider and the width of illumination is shorter. It has as an aim to illuminate the adjacent footpaths, crossings, pedestrian crossings etc. The mode is active at speeds of 15 - 50 km/h.

 

Basically the offside headlight will drop slightly and swing out to the right. It looks strange as you'll see the cutoff __/‾‾‾ pointing off but it should be low enough to avoid glare to oncoming traffic.

 

It's most noticeable when you stop in low speed traffic as it'll centre after you stop :)

Thanks... But my stray beam is pointing upwards at - about 45 degrees which doesn't seem much use.

At this point it might be worth a drive with a passenger who can take a photo, assuming it's reproducible of course.