Hi all, My passenger side head light is buzzing loudly and tonight the bulb failed to come on then after switching the headlights on and off the dipped beam bulb came on, am I right in thinking its to do with the headlight adjuster motor? the adjusters are still working fine when worked from inside the car and there is no clicking noise like its trying to adjust just a strong buzzing noise. Anyone ideas what to do to fix it? or is it buy a new unit job? Should say its on a megane 225 Cheers