My 2006 V70R with aftermarket IPD sway bars makes a booming noise in the rear (left rear, I think) when I hit a bump. Loud and hollow sounding.
Sway bar bushings seem a little worn but nothing terrible.
I took out the spare tire and trey, etc., but the noise is still there.
My 98 V70R had a rattley tailgate, but I don't think that's the problem with the '06.
Also, there's an annoying whole-car vibration that starts about 55 mph and quits about 80 mph. Lot of play in the driveshaft. Mechanic says to get a rebuilt one from Colorado Driveshaft.
At 160K miles, this car feels like it's rattling apart. Radio quit, A/C condensor shot.
Might be time to dump it, but I just love driving the car. And now I can't even turn up the radio to drown out the noise.
Please answer my questions and talk me out of buying something boring and Japanese.