I bought a 307 last weekend and started to have problems the very next day. Firstly the passenger airbag light came on as I was driving, but only briefly. Later that day all the dash instruments failed; revs, temp, fuel and speed. At the same time I had multiple warning lights; STOP, abs, airbag, passenger airbag, esp. I was able to carry on driving and after a few minutes all went back to normal. Drove a few times since then without problems until yesterday when I noticed the dash illumination was dimming and then brightening repeatedly. Soon after that I had the warning lights and failed instruments. Now today I can't start the car. It turns over and fires up, but just stalls straightaway.