Driving along the M3 today at speeds of 100mph plus, luckily this guy in a vectra pulls up next to me while in traffic and tells me none of my brake lights ain't working. HELP!! checked them out and the bulbs are fine, anyone have any idea why they aren't working? even the 3rd brake light doesn't work. my rear lights come on when i switch the headlights on though. Audi A3 1.8T thanks.