Front and/or rear sway bar end links may wear out prematurely, causing a knocking noise from the front or rear of the vehicle when driving on bumpy roads. Our technicians recommend inspecting the links at each service, they should be replaced if any looseness is found.
Knocking Noise Over Bumps Due to Worn Sway Bar Links on Volvo V70 XC
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Purchased this car 6 months ago. Notice loud clunk when pulling into driveway, going over bumps, potholes etc. Took to Volvo shop, mech confirmed sway link needed replaced. Replaced links and had all wheel alignment. 10k miles later still no problem.
Replaced lower control arms, and front ball joints, as well as inner tie rods. Got all the parts from fcpgroton and paid a local mechanic $65/hour to install. 3 hours labor. Car handles wonderful!