There was a strange clanking sound at the rear end of my car almost 7-8 months back and when I went to a shop that works on beamers they told me it was the rear wheel bearings and quoted me $600 so obviously i didn't do it, instead my wife took the care to a local automotive shop who found that it was a loose part making the sound when it was banging against the body. Now when I went today to the same bmw shop who had quoted me 600 they ask me to change the rear wheel bearing as the tires may come out while driving and it can be dangerous.
so my question is I got 147K miles on the car and do not want to spend the 600 bucks so will the tires really come out? is the shop just milking money out of me? as I don't have that clanking sound now. I read some posts about the humming sound if bearings are bad is it very distinctive? I don't feel a difference when driving but how do I make out if the shop is really telling the truth?
Thanks for any help and advise