Got the van going in for it's first MOT next week and I thought I'd better check a few things whilst I've still got time. Anyway, I've found that I can't flash my head lights! side lights, dipped and full beam all work fine but if the lights are off or just on the side lights nothing happens. I'm guessing that they should flash, and I'm hoping it's just a simple relay issue, but does anyone know if it's an MOT failure?