mine was replaced and I had to pay for it, anyway, I have the rain sensor as well, and they did go a little crazy, one time they were ok, and when I used high beam they sometimes didnt go down and kept blinding others, on other occasions they went all the way down so I could only see a few meters ahead, also used a temporary fix of setting them manually on top of the headlight, but then the highbeam didnt rise when I used it so in the end I decided to fix this, now the bulbs seem to be my next purchase as one of them got visibly yellow... anyway my dealer told me that if it wasnt an imported car they could do it on goodwill even if it was just after warranty, so might want to ask if your warranty expired not long ago...