Hello everyone I am new to the board and I have a quick question. I have a 2006S60 Rand when we drive it in the rain and water gets into the undercarrage by the gearbox we get an ungodly hum. We took it to the nearest Volvo dealer here in England and all I got was that they couldnt find it. Has anyone else experinced this problem? And if so what was the problem?

 

If the hum changes pitch when cornering, then it could possibly be a wheel bearing starting to go bad.