Just joined this forum to share my experience on a similar problem I've been experiencing in hopes to help and find the solution. If you want to read the "long" version, here's a link (
http://www.myturbodiesel.com/forum/f19/2010-golf-tdi-60-75-mph-vibration-shaking-14546/)
My car is a 2010 Golf TDi with about 22k on the clock, I also bought the car used about 2 months ago. In short, I've tried 4 different sets of wheels (the stock 17"'s, a set of VMR 18"'s, stock 04' A4 16"'s, and the 18"'s BBS CH's off my old S4), the left front axle has been changed under warranty and an alignment performed. The dealer had three people drive it on the interstate and all reported no issues. If there's something I don't want to hear from any dealership, ever again, is "we checked it out, you're all set". I've had Porsche's, Audi's and now a VW and anytime you hear that, it's about as useful as hearing "we did some random things that might have fixed it but we're in such a rush we can't really find the root cause so see you next time". OK, end rant
There are issues. This weekend I found out that two of the rims that came with the car were bent. I'm OCD, so I measured them with a dial indicator (see video's in link to other forum), there's is no refuting that they are bent, but I don't even want to bother trying to get the dealership to pay for it. In their eyes I'm probably taking the car to run in hill climbs and other off road adventures.
Similar to dasVW.com's other post, I have the same hummmm pause hummmm, pause type of sound going on. You can absolutely hear it on some of the new fresh pavement sections I drive on daily. The steering wheel shakes and I'm tired of enduring it for 1.5 hours a day
There are certainly speeds above 60mph where the problem is worse, and hitting the throttle amplify's it.
These folks at the dealership have been very friendly, however at this point they don't seem to have the skills to nail down the issue. So, similar to what JTMK6 decided, I'm going to slap new bearings on myself and see how it goes.