"L. D. Mormino" <
lmor...@earthlink.net> wrote in message
news:7jePh.18207$tD2....@newsread1.news.pas.earthlink.net...
> The headlights on 99 A6 Avant have turned yellow. Is there any way to make
> them clear again? other than replacing the assembly? Larry
>
they must be plastic rather than glass.
if so its due to UV light and pretty much nothing you can do other than
replace the units.