Thanks for replying Lexter, can imagine the frustration you have with the Audi dealers.
I too think I will be looking at a different car, as Audi dealers have put me right off the Audi as there so called experts and machines can't give you the answers you want, its all just guess work.
Mine has gone worse and starts to cut out every 20 mins instead of 40 mins. weird thing is if I stop and turn ignition off for a minute or so the car runs fine again for another 20 mins
Been told by Audi to change fuel pump, but then another machanic has said I am wasting my money and that the FSI engine is c@@p
Apart from this problem, I absolutley love this car and just wish I could be given an answer to exactly what is wrong with it.
I am hoping someone reads this before I get rid of my car and saves the day with some advice that sorts this out.
Hope you get your car sorted Lexter, and if you decide to sell your next one is less stressful than this one.