Hi Guys, My wife bought a Black Audi A3 2.0 TDI 170HP Quattro with nice black \ red leather interior and 37,000 km's from 2006. We bought it far away from where we live so the drive back home was 1300m's and a lot of fun. We were racing on the autobahn and it did 220 easily and then dragged on a bit to do 230. Anyway that was a week ago. First strange thing - 3 days ago i took it to be chip tuned to 205hp & 410NM and strangely i didnt reallize any reall difference in power afterwards except that it felt like power begun later in the revs at 2500 rather than 1750. 2nd strange thing,.. 2 days ago my wife was driving and all the power of the car went away. She had to practically crawl home at 20km\h !! and the yello COIL light was on in the dashboard. This morning I started it and it appeared ok, we drove it to audi for a diagnostic and they said there was a very long list of errors linked to electronics of motor management. And instead of fixing something the twits delete all the errors and gave me back the car and said i should drive it for a while to see if the problem returns. And if it does then they can easier identify what it is. Now normally that would be fine by me, but next week we have to drive 1500km's with the car on holiday. So i find it too much of a risk to 'wait and see' what happens !! What do u guys think may be the issue? would it be the chip tuning that confused the engine and the elctronics had to be reset? Has anyone experienced this before? Really hope to hear from u.