Ok, I have an A3 on a 52 plate, 1.8 turbo. So basically, I have had the car since september and been a nightmare, the engine management light came on and a week later I was driving, approaching a round about and power cut out, it quickly came back but on approaching the next round about it did it again and juddered then stopped completely, got diagnostic plugged in and said engine is running too rich, got told to bleed the fuel and clean air filtwt, did that then the same thing happened 2 weeks later, same code reading, got told by RAC to give it a good boot to clear it and it will be fine, did that and was ok for a couple of weeks and then the same again. Its happened about 5 times now, car dying, light coming on and always reading the engine is running too rich, ive had a full service, the injectors cleaned and mechanic said its not running rich? The car is quiet, smooth to drive, just keeps getting the light come on and dies on me, ive read about lambad sensor? Disconnecting the battery? Thermostat? I've spent so much and just want to know whats wrong. Please help.