The front control arm bushings wear out, resulting in alignment issues and squeaking and/or knocking noises from the front end. Worn bushings will require replacement.
Car Problem Reports
Volvo S60 Front Control Arm Bushings May Wear Out
Volvo S60 Problem
Average Mileage: 119,000 mi (90,000 mi - 165,000 mi)
Visitor, 2004 Volvo S60, 100,000 mi
"Clunking" noise prominent in front right side, control arm worn and needs replacement
Visitor, 2002 Volvo S60, 90,000 mi
knocking on front left side, replaced front arm bushings
I was in a car shop to have my tire rods replaced, outer on one front side and inner end on the other side. Incidentally, the repair guys also found out that BUSHINGS are worn out as well and needs replacement. I have to only opt for the tire rods work and hold off on having the bushings replaced. It is not really of a safety issues I was advised. However, they said I might need to check on my tires for uneven wearing of the tread, and by that it means I need to rotate my tires diligently as necessary meantime I still haven't gotten new bushings in place.
f/r lower control arm