Knocking Noise Over Bumps Due to Worn Sway Bar Link Joints on Mercedes-Benz C320 4MATIC

The sway bar end link joints may wear and cause a knocking noise over bumps. Loose or warn links should be replaced to correct this type of noise.

RepairPal Verified
Average mileage: 133,000 (122,000–144,000)
3 model years affected: 2003, 2004, 2005
5 people reported this problem
Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
Viewing 1 - 2 of 2 problem details
Loud knocking noise over driver's side when hitting a bump in the road, knock not present at higher speeds. Replacing the sway bar end links solved the problem, car is whisper quiet now. Price was $486.60 for both sides at an independent shop.