headlight auto stay on

Good evening all new here just bought a CLK 220CDI Old 57 plate having issues with auto headlights inoperative although they always are on when I set to auto thanks to dark miserable days so they seem to active anyway I have tried a second hand unit which was advised as tested/working I have...

Hi I have a 2002 ML270 W163. I normally leave my light switch in auto. Jump out, lock the car and walk away because the lights switches off after a while. Twice now the lights decided to stay on and not switch of, luckily I would walk past and see they stayed on. Then when I go turn the...