I just took it as part of owning a VW, I think nearly every Golf, Jetta, Scirocco and Polo I've had have needed wheel bearings done. Don't tend to last too long comapred to other marques too, regardless of how they were fitted, who fitted them, front or rear and regardless of manufacturer. I have noticed that VW bearings do tend to be the best, but at about 3x the price I'd want 3x the life out of it, which I couldn't answer as I don't think I've owned the same car long enough! hahaha