I am really confused. My headlights have been intermittently failing to ignite so I took the car in. They said a rubber piece was missing but it is now fixed. Anyway, now the passenger side light is yellow, like any other car. Is it possible that they replaced it with a bulb of the wrong temperature or even more F'd up...a standard incandescent light? The service ticket said the headlight assembly was replaced. The adaptive feature that moves the light right and left on curves still works.
Thanks, Steve

 

They can't replace it with a halogen.

They may have replaced only one bulb and the temps change with amount of life left in them.

 

Do bulbs get more blue with age? Or maybe less blue (if they used some random old bulb)? I know these are really dumb questions...