Mercedes-Benz W221 W216 Front Upper Control Arm - Used Original Parts

Diagnosis and Common Symptoms

Working on heavy luxury chassis like the W221 S-Class and W216 CL-Class, I frequently see accelerated wear on front suspension components. When the front upper control arm bushings degrade or the ball joint develops excessive play, the most prominent symptom is a distinct metallic clunking, popping, or creaking noise when driving over uneven pavement or speed bumps. Drivers will also notice a vague, wandering steering feel, steering wheel vibrations at highway speeds, and rapid, uneven inner tire wear. While this is a mechanical failure that does not directly throw OBD2 fault codes, a severely collapsed upper arm can alter the geometry enough to disrupt the ride height sensor linkage. This disruption can trigger AIRMATIC or Active Body Control (ABC) malfunction warnings on the dashboard, such as a "Vehicle Too Low" or "Suspension Fault" message.

Introduction

Restoring the refined, floating ride quality of your flagship chassis demands components built to exacting factory specifications. This is a Genuine Used front upper control arm, meticulously inspected and tested for structural integrity, ball joint tension, and bushing health. Unlike aftermarket alternatives that often feature inferior rubber compounds and suffer from premature failure, this tested factory unit guarantees the precise suspension geometry your vehicle was engineered to maintain. Every unit is physically verified in our facility to ensure it is fully functional and ready for immediate, reliable installation.

Product Details

• Brand: Mercedes-Benz
• Model Compatibility: W221 (S-Class) / W216 (CL-Class)
• Part Name: Front Upper Control Arm
• Condition: Genuine Used (Tested Working)
• Notes: Inspected by a Senior Technician for ball joint play and bushing tearing. Please confirm specific left (driver) or right (passenger) side orientation and verify your exact part number prior to installation, as AIRMATIC and ABC suspension setups may have slight chassis variations.