There is a note on my Audi A8 V8 2.4 (Adaptive Light Defective)

What dose it means and how can I solve it?

Also the right xenon light goes to right side and some times not working !!

 

It means the leveling/aiming motor is likely shot.
An Auto-Scan will tell you for sure, and is the best diagnostic route.

Probably need to replace the headlight, but I've heard of people doing transplants.
Will need to be calibrated after replacement.

 

I have a similar problem. The drivers side main headlight is stuck pointing to the upper right side. I get no error messages. Can this be repaired or do I need a new assembly? New one costs $1200-1500 plus labor
Any help will be appreciated.