View Full Version : quick possible diagnosis - humming from rear driver's side wheel

09-29-2005, 07:46 PM
Here's the story. I might be buying a co-worker's 1998 A4 1.8tq, however, I took it for a drive and noticed a humming noise coming from the rear driver's side wheel area. It sounds mechanical, not tire related. It is a tiptronic quattro and it has been lowered. In my limited experience, I thought that it might be a bearing. He was going to take it to a local Audi dealer but they want to charge him $130 just to look at it. Any help would be appreciated.

09-29-2005, 07:51 PM
does the sounds change when you turn from side to side? If so, might just be a wheel bearing. Happened to me.

09-29-2005, 07:59 PM
Yes, that's exactly what it does. What did it run you to fix if you don't mind me asking? I was told that when you lower the car, if the camber and/or toe is not adjusted properly, that would cause the bearing to go bad.

09-30-2005, 07:26 AM
Hub bearings should be simple enough to be done at any competent shop and could possibly be done on your own (not sure cause I've never looked at it). Most likely what happened was he lowered his car and didn't get it aligned. This can cause the bearings to go faster than normal.

09-30-2005, 09:16 AM
thanks for the info Komp & buck.

09-30-2005, 03:06 PM
wheel bearings are shot buddy

09-30-2005, 09:48 PM
Most likely a bearing. Not that bad to replace. I replaced on on my A4 and the dealer replaced one under warranty on the s4.

10-02-2005, 07:07 PM
Its definately a bearing.

A new rear wheel bearin will run you about $65 for the part, if you can get the housing out, and take that to a shop, you should be able to get the new one pressed in for around $45. If they charge more than $50 go someplace else.

Should take you 30 mins to pull it apart (Depending on what is rusted) and another 30 to put it back together.

Don't forget to have the alignment checked after...

I've done both rears, and one of my fronts. I think my other front is on its way out...

10-03-2005, 06:08 AM
I paid $65 for the part from the dealer and $100 for install on the rear wheel bearing. The dealership told me they charge $220 installed. That's exactly what my car did also. If you hear the noise turn the steering wheel and if it goes away or gets worse then that is your problem.

10-03-2005, 09:11 AM
Yeah thats the wheel bearing, mine was doing that, i got the rear wheel bearing kit from ecstuning for $60.