My first Audi and first post, so Hi and that I recently bought an A3, which is under extended warranty until next year. I've also bought myself VAG-COM + cable to read off faults. Last week it pulled off the following :-17705 - Pressure Drop between Turbo and Throttle Valve (check D.V.!) P1297 - 35-10 - - - Intermittent Now it was due to go into a main dealer the following week for some other work. So I made a printout of the error, cleared it to ensure it wasn't old and asked the dealer to take a look while it was in. The evening before it was due in I ran an auto-scan again and noticed it had reappeared. I figured this was good as it confirmed it was a current fault and saved us some diagnostics time. I left the fault in memory. Upon dropping it off at the dealer I explained that a local specialist had noted the error, provided me a copy and cleared it. They grimmaced, saying that it shouldn't have been cleared but they would see if it had been relogged (which I knew it had). Fair enough. Later on the other work had been completed and my car was ready to collect. However they couldn't find any logged faults and thus couldn't investigate it further at the moment. Though they invoiced me £25 labour for connecting it up to look at the memory. When I got home later, I ran a VAG-COM auto-scan again and voila, this time no faults. How strange. So I'm left with a few questions.. 1) Does my warranty stand at risk from using VAG-COM to read off fault codes myself? How do those of you using dealerships and VAG-COM approach it - be honest, or make up a bit of guff? 2) Where do I stand with getting this resolved (especially while it's in warranty)? And am I to assume that the dealership noticed the error but just cleared it, or could there be a more innocent explanation? Although I have saved and dated logs of the scans, I realise that it's pretty much their word against mine and I'm not interested in arguing over it. Being a new car I can't be sure whether it's affecting the performance or health. But obviously a fault is a fault - a bad thing. Perhaps I should just take it to another dealer. Which seems a pity, as otherwise the service was good and efficient. Thanks in advance.