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thanks for that
the problem does go if you switch off then re-start. all 3 times that it's happened over the past 2 days has been when the car is at around 3000 rpm - however it isn't happening all the time.
an Audi dealer suggested that it could be:
MAF - or
turbo over boosting - or
water temp sensor on the engine - i.e. it's over reading and assumes temp is way too high hence shuts down the turbo - but I havn't noticed temp going over 90deg C on the dash dial
I tried un-plugging the MAF lead and the engine felt strangled and you couldn't feel the turbo - plugged it back in and all was fine again. So I doubt very much if it's the MAF.
I'll pursue what you said anyway. I have twice had problems of a pipe coming off on one of the the valves at bulkhead and this produced the same effect, however re-connecting solved the problem.
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Ive had that the past couple of days aswell mate.I also have a TDi.
I was having the same porblem though through last summer and it turned out to be the MAF.
Or so i thought,everything had been great but through this winter my car just hasnt been responding the same as it did.I have a new MAF so i dont have a clue what it is now.
Same with me though,get to about 70mph then you feel something go and it goes into limp mode.Really annoying me my car just now.So many things have went wrong on mine in such a short time. /ubbthreads/images/graemlins/swear.gif