All of these post about bad bearings are freaking me out! I have 29k miles on my RS and haven't noticed any real problems. But there is this intermittent humming sound that is most noticeable at 70 mph. I always thought it was either the radiator fan, the tires, or wind noise. It's not that loud and it doesn't affect handling and since I've noticed the sound since the car was new I just got used to it and thought it was a characteristic of the car. After 29k, is it safe to assume that my bearings will be ok? I mean, if they were defective they would have failed a long time ago, right?