Hello, on my Superb II MY2014, I've recently been tampering with the Light Sensor Correction value via VCDS, but even after quite extensive googling and trying various values, I cannot seem to make much sense of it. My latest experiment was setting the value to "2", but contrary to what some people claim to have achieved, my headlights turn on kinda randomly during normal/overcast daylight and it actually seems to work even worse than at default settings.

 

The factory value was 48% I think. Is there actually any way to make lights turn only when it's darker, or is this so finicky that it's no use adjusting and I'm better off just ignoring the "Auto" position altogether to avoid cutting the lifespan of my xenon bulbs because of the frequency and capriciousness with which the car turns them on?

7 hours ago, Pride4u said:

I'm better off just ignoring the "Auto" position

Quite possibly. My sister's car has "auto lights", and is quite capable of turning them on when going through a railway bridge and then leaving them on for the rest of the trip even though the light level only dipped briefly under the bridge.

Are there not two different settings? One relates to the type of glass fitted to the car so adjusts for whether it's a green coloured or the special reflective glass. This setting should be left alone really.

 

There is then another which alters how early or late (i.e. how dark or light it should be) that the lights turn on and off.

 

I think I have mine set to the next setting up from the basic/middle setting. Never have any problems of them not coming on when I'd want or them staying on too long.

 

Going through a tunnel or long bridge on the motorway they will turn on and then back off again when I come out the other end.

 

Also if you have the AFS xenon's then the adaptive features only work if the light switch is set to auto I believe.

Don't forget when in auto the lights will come on when it's raining, regardless of how dark it is.

5 hours ago, Phil-E said:

Are there not two different settings? One relates to the type of glass fitted to the car so adjusts for whether it's a green coloured or the special reflective glass. This setting should be left alone really.

 

There is then another which alters how early or late (i.e. how dark or light it should be) that the lights turn on and off.

 

I think I have mine set to the next setting up from the basic/middle setting. Never have any problems of them not coming on when I'd want or them staying on too long.

 

Going through a tunnel or long bridge on the motorway they will turn on and then back off again when I come out the other end.

 

Also if you have the AFS xenon's then the adaptive features only work if the light switch is set to auto I believe.

There is no way to change the sensor threshold to make the lighta turn on later. Currently, I have it set on "normal" and the rest of the options only allow you to set it to several values of "earlier" with an increment of 20%, meaning I already have it at the least sensitive value, which seems to be the default one, by the way.

 

Therefore, I have nothing else but the Light Sensor Correction value to work with.

4 hours ago, softscoop said:

Don't forget when in auto the lights will come on when it's raining, regardless of how dark it is.

Not necessarily, you can turn the Rain Light function off via VCDS and control that yourself, which is exactly what I did.

14 hours ago, softscoop said:

Don't forget when in auto the lights will come on when it's raining, regardless of how dark it is.

 

And when you go over 125.  Or is it 140?

Don't think so - if you mean Highway Lights, this is a feature that, when you go over 140 kph, narrows down the cone of light coming from the headlights to minimize dazzling oncoming traffic and to concentrate the light to make it shine into greater distance.

19 hours ago, Pride4u said:

Don't think so - if you mean Highway Lights, this is a feature that, when you go over 140 kph, narrows down the cone of light coming from the headlights to minimize dazzling oncoming traffic and to concentrate the light to make it shine into greater distance.

 

Yep that one:

Ah, thanks for the clarification, apparently I got wrong information. In that case, that might probably be the reason why my headlights would turn on in broad dayilight even with the Light sensor correction modified. Will report back once I have tried it with Highway Lights off.