An abnormal vibration maybe noted due to a worn upper and/or right front engine mount. Replacing all worn mounts may be necessary to correct this concern.Google+
Car Problem Reports
Volvo V70 XC Upper/Right Front Engine Mounts May Wear out Prematurely
Volvo V70 XC Problem
Model Year Affected: 1998
Engine Affected: 2.4L 5 Cylinder Turbo
Average Mileage: 164,333 mi (150,000 mi - 186,000 mi)
All the mounts needed replacement but bottom mount gone entirely.
Visitor, 1998 Volvo V70 XC, 2.4L 5 Cylinder Turbo, 157,000 mi
Front e.m. Wore out. Hand it fixed.