Mercedes-Benz S W221 Front Right O/S Upper Control Arm Wishbone A2213309007

The Mercedes W221 Front Right Control Arm is a component from the Control Arms and Ball Joints category, designed for the front right suspension. It is responsible for precise wheel guidance, driving stability, and predictable vehicle behavior during braking and cornering. This is a solution for users seeking a proven, technically matched component for their Mercedes suspension.

Specifications and technical data

• SKU: A2213309007
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2213309007
• Substitutable numbers: A2213309007, A 221 330 90 07, BG
• Location on the vehicle: Front, Right
• Category: Control Arms, Ball Joints & Assemblies

Purpose and Function in Suspension

The front right control arm in the Mercedes W221 model operates at a critical point in the drivetrain. It connects the steering knuckle to the body, transferring vertical and lateral loads while maintaining proper wheel geometry. A correctly selected component ensures:

• stable vehicle handling at higher speeds,
• even tire wear,
• precise steering response,
• better vehicle control during sudden maneuvers.

Thanks to its dedicated placement on the vehicle (front, right side), the control arm is structurally adapted to the specific suspension of the Mercedes S-Class W221 generation.

Compatibility and Identification Parameters

The offered control arm is a part intended for Mercedes vehicles, consistent with the factory suspension concept of this model. The component has an OEM part number and assigned replacement numbers, which facilitates unambiguous identification and selection for a specific vehicle version. This allows for verification against the manufacturer's catalog and avoidance of installation issues.

The product is marked with an individual SKU, which allows for quick retrieval in the store's system and linking to the appropriate technical specification. This information is particularly important for workshops and service centers that operate based on documentation and parts catalogs.

Performance Characteristics and Installation

The front right control arm for the Mercedes W221 is designed to work with the factory mounting points in the body and steering knuckle. The appropriate arm geometry and the correct positioning of the ball joint and metal-rubber bushings allow for maintaining the parameters specified by the vehicle manufacturer. In practice, this means:

• installation in place of the worn component without structural modifications,
• maintaining correct toe-in after proper geometry alignment,
• consistent operation with other front axle suspension components.

The used condition allows for economical replacement of the component while maintaining functionality, which is particularly beneficial for comprehensive suspension repairs where multiple components are replaced simultaneously.

Benefits of Using a Dedicated Mercedes W221 Control Arm

Using the correct control arm on the front axle directly impacts driving safety and comfort. For the Mercedes W221, where the suspension operates under heavy loads, a properly selected component helps maintain:

• body stability during braking and acceleration,
• confident handling over uneven surfaces,
• reduced vibration transfer to the cabin.

For users who want to better understand the role of control arms in the entire drivetrain, the guide article: Suspension System – A Comprehensive Guide to Shock Absorbers, Control Arms, and Stabilizers will be helpful. It allows for viewing control arm replacement not just as a single repair, but as part of a broader suspension diagnosis.

How to Care for a Used Control Arm and the Entire Suspension

To maximize the potential of a used component, it is worth ensuring regular checks of the condition of bushings, ball joints, and other suspension components. Proper tightening of bolts with the suspension loaded and subsequent wheel alignment are also crucial. Additional tips on the operation and maintenance of used suspension components can be found in the guide: How to Extend the Lifespan of Used Car Parts?.

If you are looking for other components from the Control Arms and Ball Joints category for this brand, check out the Mercedes Control Arms and Ball Joints available in our store to select a complete solution for the entire suspension system.