Defiiinnnnaaaattttlllly get the Genuine Vag-Com, from
http://www.Ross-Tech.com I just spent the last two days chasing Vacume leaks, Gloplugs, Gloplug Harness, Tore out the EGR replaced with Race pipe and block off and muffellerectomy, all due to my new Vag-Com, WOW awesome piece of equipment, I had suffered with a regular ODBII scanner to clear codes and diagnose for a couple years and I finnaly said the heck with it and bought One. I documented 17 fault codes that I didnt know were even in the ECU, and repaired a ton of little stuff, and all I can say is WOW. The car has never run this well. The real live data feed Vag-Tach almost killed me though. If you drive with yer lap top and try to watch it,,,, you wont be watching the road. Enough Said. LOL,,, There is so much info the system gives you and is really pretty easy to use. I even found out I had heated mirrors on my car, I had no idea until I found the fault code, I replaced one $10.00 part cleared the code, and now they both have steam coming off them in the mornings. I'm 200 miles from the nearest Trustworth Dealer, and I dont trust to many folks with my baby diesel, so I made the splurge.. again I say its very well worth it.