Ok so I have a 99 a4 quattro 1.8t. I noticed a loud humming sound going around left turns. It seems to me the left (driver side) wheel bearing would b bad since it has the weight of the car leaning that way. Am I right? Also my car has the 75mm bearing correct? Thanks in advance guys!

 

When I make right turns at high speeds I have no humming sounds at all! That's what I want when I turn to the left as well! Lol

 

If I remember correctly when my driver's side bearing was bad the humming would stop when I turned left... I think your passenger side bearing might be bad.

 

Ok cool. Thank you!