Have recently bought a C5 2.0 HDi Sallon
I have noticed that when drivng with the headlights on (auto) the headlights seem to dim just for an instant before returning to normal. The best way I can describe it is like a momentary "switching" of the lights. This happens once every few minutes... Is this normal or should it be cause for concern that the electrics are about to pack in? Thanks
Chris