Bi-xenon issues

[wind]

Hi
Polo GTI 12.5 bi xenons seem to have a dark area where beams overlap - sort of a "v" shape - causing some problems on country roads at night. Anyone having similar issues? This is my first experience of bi xenons so not sure if it's a problem or just how they work.
Thanks

Yeah, got the same 'problem' with my Passat's bi-xenons . . . with high-beams there seems to be a 'dark' zone right in front of you in the distance where your eyes naturally go to when travelling at highway speeds. With normal high beams the second beam fills this space, but with bi-xenons one beam is all you get. On low beams it is OK for me.

They light up everywhere else beautifully but leave a dark patch right in front of you in the distance . . . annoying.

When I get to the first service (unless I get annoyed enough beforehand to do something about it) I will have them point the lights a little inwards so that you get bright spot overlap in the far distance on high beam - you get enough side spread that a couple of degrees inwards will not make a difference to the sides.


edit/update: did a long night drive recently . . . think the buggers at the factory did not alight the lights properly as I have a very bright spot about 20 degrees to the right (and a dark spot right in front of the car on high beam!) - will have to adjust them and see if that fixes my problem!

[Missy63]

My issue is when using low beam - on high beam I have no problem. As I live in the country and share my roads with a variety of wildlife I think I'll have to get it adjusted before the first service.

[mr gee]

there is a certain algorithm to the bi-xenons working.

First there is the self test on start up where they dip and then level up.

turning lights work at speeds 0 to 18 kmh.

works that way on my car.

[T Go]

turning lights work at speeds 0 to 18 kmh.

I'm sure it they work at higher speeds

[XTC838]

The lights only turn above around 20km/h. Below that and when stopped, they point straight.

[SChan]

The lights only turn above around 20km/h. Below that and when stopped, they point straight.

R u sure about this?

I think they do turn below 20 kmph & when stopped as well - will test again tonight!

Cheers,

[XTC838]

R u sure about this?

I think they do turn below 20 kmph & when stopped as well - will test again tonight!

Cheers,

Positive they only turn above 20km/h

[mr gee]

Further to this discussion, I found the parameters in the Self Study program 335
http://www.volkspage.net/technik/ssp/ssp/SSP_335.pdf

[SChan]

Further to this discussion, I found the parameters in the Self Study program 335
http://www.volkspage.net/technik/ssp/ssp/SSP_335.pdf

Nice read.
Thanks mr gee