On my 200te soon as I turn on the lights the bulb failure light comes on,I have checked and changed some of the bulbs on the car as they were going black,but now there is no faulty bulbs,could it be the unit itself?are they reliable?The car is fitted with a towbar but as far as I can tell it is a original dealer fit Euro type,so I doubt that is part of the problem.By the way Andy I will get over too you soon!!THANKS for any help...