Bi-Xenon Headlamp Beam Height.

[Schtum]

I have a problem with the low beam height in my 2106 Yeti with Bi-Xenons,   It started when the rear ride height sensor device broke.  I had it replaced with an aftermarket part.  This required recalibration and my local VAG specialist performed this on ODIS, I believe.

 

All was well until 20 miles later the ride height sensor stopped working on speed hump and the lights went back to oscillating up and down as they had when the original component broke.   The same VAG indy fitted an OEM unit.  This was recalibrated today but the dip beam is too low and 

I'm not sure that the lights are performing their usual functions.  They are however doing their little dance on engine start.

 

Anyone with experience of this issue?  I know that you can physically adjust the height of the headlamp but I suspect this also alters the halogen main beam lamps and they're pretty much correct where they are.  

[Austin 7]

Hi

 

Raising or lowering the dipped beam by a fraction of a degree makes a big difference to the distance at which the dipped beam top cutoff intersects with the road.  The same change to the main beam is much less noticeable.  I suggest you go back to the VAG indy and get them to reset the dipped beams nearer to the upper tolerance limit of the beam setter.  I have my beams set at about -0.7% which with headlamps 780 mm above the ground places the cutoff on a level road about 100 m away.  With this setting it always passes its MOT but I very occasionally get flashed by someone.

 

The headlamps do also have manual allen key adjustments, in case the NS and OS beam heights are not quite the same. 

[idleness]

Any adjustments will have to be done in conjunction with VCDS or similar, otherwise the headlights go into safe mode over to the left and down.

 

[Schtum]

1 hour ago, idleness said:

Any adjustments will have to be done in conjunction with VCDS or similar, otherwise the headlights go into safe mode over to the left and down.

 

 

Yes, I've seen the VCDS procedure here... https://www.audizine.com/forum/showthread.php/578065-How-to-Properly-Re-Calibrate-and-Adjust-Adaptive-Bi-Xenon-Headlights.  

That's one option where I'd need to recover my VCDS cable from the neighbour who has borrowed it and carry out that procedure.  

However, I'd have thought that calibration using ODIS would produce similar results.  

[MikeTheThinker]

12 hours ago, Schtum said:

 

Yes, I've seen the VCDS procedure here... https://www.audizine.com/forum/showthread.php/578065-How-to-Properly-Re-Calibrate-and-Adjust-Adaptive-Bi-Xenon-Headlights.  

That's one option where I'd need to recover my VCDS cable from the neighbour who has borrowed it and carry out that procedure.  

However, I'd have thought that calibration using ODIS would produce similar results.  

Excellent link; many thanks!