Road Noise.. Worn / Bad Wheel Bearing or Worn Tires?
First off let me just say my tires are actually worn and should be replaced soon so the noise I'm hearing could actually be just the worn tires.
A friend of mine who had the same tires was also experiencing a noise which he also thought was just the tires but after he got his car serviced, he found out he had a worn/bad wheel bearing which was actually causing the noise he was hearing. So that why I'm thinking maybe the noise I'm hearing is also a bad wheel bearing.
After thinking about it for awhile I figured that if the noise I was hearing was just worn tires that the sound would change as I drive over different surfaces (IE: Driving down a highway and crossing over from concrete to pavement) but the noise I'm hearing seems to stay the same which make me thing its the wheel bearing. Now I'm not tire or wheel bearing expert but this seems to be a logical conclusion.
I just picked up my car from Audi due to a failed water pump (thank you CPO warranty and I did get the timing belt service done while they were in there) and had asked them to check the wheel bearings. The techs report basically said it was just the worn tires. Now I don't know what the tech actually did to test this . As far as I know he might have just did a low speed drive around the parking lot and since the tires are actually worn, pointed the finger at the most likely suspect without even doing further testing.
What do you guys think? Does my logic hold up related to the noise not changing when changing driving surfaces or do I just need to buy new tires and worry about something else?
Sorry about that. I'm not sure how to really describe it. Its more noticeable at 45-65 MPH. It's not a constant sound, it has an oscillation to it. It's not really a low rumble or grinding sound. It seems to get quitter with an upward bounce over a bump. It does not seem to change when taking a turn.