tae111

I have a 2011 A4 premium plus with 59000 miles. I just started hearing a faint buzzing sound almost like a faint mid pitch drone from the drivetrain. It corresponds to the speed of the car and not the rpm's of the engine. The pitch increases as the speed builds. It's hard to pin point the exact location but it seems to be coming from under the driver seat. I am planning to take it to the dealer next week. I will add I have Blizzak winter tires but this is the 3rd. winter on them and never had tire noise from them before. Just looking for some input before the dealer sees it. It is a CPO car so it may be covered under warranty.

tae111

Just found out the CPO warranty has expired so this could be interesting.

tae111

Dealer drove it and he thinks it's a bad wheel bearing. Will find out tomorrow when he gets it on the lift. $$

tae111

Turned out to be a bad right wheel bearing. $839.00