The upper engine mount may wear prematurely. Symptoms may include a harsh feeling when the transmission is shifting and roughness when the engine is idling. Worn engine mounts should be replaced as necessary.Google+
Car Problem Reports
Volvo XC70 Upper Engine Mount May Wear Prematurely
Volvo XC70 Problem
Average Mileage: 98,800 mi (85,000 mi - 121,000 mi)
Visitor, 2008 Volvo XC70, 93,000 mi
93,000 miles and we hear a harsh grinding noise from the front right side. Took it to the shop. Replaced the upper torque mount and lower engine motor mount bushing. Still the same noise. Put it on the rack again and they found the upper right engine mount broken as well. Frustrating issue for a newer car.
Visitor, 2004 Volvo XC70, 101,000 mi
Just had that mount replace.