Mercedes-Benz S500 right front control arm rubber mount cracked and grinding sub-frame, requires replacement of both control arms and additional components on Mercedes-Benz S500

Submitted by DaveBMoore · Jun 23, 2025
Published by RepairPal

Problem overview

Some Mercedes-Benz S500 owners report experiencing significant issues with the right front control arm rubber mount, including cracks that lead to grinding against the sub-frame. This condition often necessitates the replacement of control arm bushings and the front right strut, with repair costs potentially reaching $1,950. Additionally, some owners receive service estimates around $2,800 for changing both control arms. The breakdown of the rubber center in the inboard lower control arm can cause lateral movement, resulting in squeaking or grinding noises, indicating that the arm or rubber fitting needs replacement. Furthermore, wear in the lower ball joints may lead to play between the lower control arm and wheel spindle assembly, necessitating their replacement as well. Prompt attention to these issues is crucial for maintaining the suspension system's proper functioning and ensuring the vehicle's overall safety.

1 person reported this problem
1 comment
Schedule Repair

Mercedes-Benz S500 vehicles with this problem

1 model year affected
Average mileage: 120,000 miles
(120,000 - 120,000)

Search for another problem

RepairPal Car Genius

Ask our experts about your Mercedes-Benz.

RepairPal Car Genius™ is a free resource for vehicle owners seeking advice on maintenance, auto repair, shop inquiries, estimates, and finding a trustworthy repair shop in your area.

 Auto Repair Expert Auto Repair Expert

Call us at 877-913-1554

Available 9am – 6pm ET Monday through Friday

Call Our Experts