My wonderful 2004 V70R wagon which I paid a fortune for, has a problem when driving in rain and/or on wet pavement. When driving through these conditions only, there is a violent shudder which only alleviates when I decelerate. It's then followed by a sound akin to a metallic grinding or feedback from a sound system. I've had the tires checked, the DSTC is fine, and new brake pads. It's at the dealership for the 3rd time and they're puzzled. Any similar problems out there?