Hiya i drive a 2001 model A3 and it is starting rough in these cold mornings. The car is fitted with 3 glow plugs with heater which heat the water before you start the car. I have phoned my local audi dealership in Liverpool and they said they should be ok even with the car approaching 60.000 miles. They have not replaced these in any other car but if i wanted them tested they would relieve me of a lot of money. Has anyone else got this setup or know if they should be replaced? The cost is approx £50 for three. Hope to here from you all soon!!!