Audi A4 B6 S4 B7 Rear Axle Control Arm Wishbone Upper Right O/S 8E0505324M

Audi A4 B6 S4 B7 Rear Axle Control Arm Wishbone Upper Right O/S is a component from the Control arms and ball joints category, designed for the rear right side of the suspension. This is a factory-engineered Audi solution that allows for the restoration of proper axle geometry, handling stability, and predictable vehicle behavior in corners.

Specifications and technical data

• SKU: 8E0505324M
• Mark: Audi
• Condition: Used
• OEM Part Number: 8E0505324M
• Substitutable numbers: 8E0505324M, 8E0 505 324 M
• Location on the vehicle: Rear, Right
• Part type: Control Arm & Ball Joint Assembly
• Category: Control Arms, Ball Joints & Assemblies

Purpose and function in the suspension

The presented control arm is designed for installation in the rear right part of the suspension, where it is responsible for precise wheel guidance and maintaining specified camber and toe angles. As a component operating within a multi-link system, it works in conjunction with other arms and ball joints, limiting unwanted wheel movement during acceleration, braking, and traversing uneven surfaces.

Thanks to its properly selected geometry and structural rigidity, the control arm helps maintain driving stability, even tire wear, and predictable vehicle reactions to steering inputs. This is particularly important in high-performance models, such as the S4 versions, where the suspension operates under higher dynamic loads.

Benefits of using an original control arm

Using an original solution from the Control arms and ball joints category ensures proper fitment to the mounting points on the body and steering knuckle, without the need for modifications. The appropriate operating characteristics of the ball joints and bushings translate into:

• maintaining the factory vehicle handling characteristics,
• better control over the car during sudden maneuvers,
• reduction of suspension play and knocking sounds coming from the rear axle,
• more even load distribution on other suspension system components.

For the user, this means more confident handling, predictable car behavior, and the ability to correctly set the geometry after replacing the component.

Vehicle placement and installation aspects

The control arm is intended for installation on the rear right side of the vehicle. Such clear placement specification facilitates the selection of the correct component and minimizes the risk of error when ordering. During replacement, it is recommended to:

• check the condition of cooperating ball joints and bushings in other control arms,
• apply appropriate tightening torques in accordance with service documentation,
• perform a measurement and adjustment of the rear axle geometry after completing the installation.

This approach allows you to fully utilize the potential of the newly installed component and limit premature wear of tires and other suspension sub-assemblies.

Condition of the component and practical application

The offered control arm is a used part, which in practice represents a reasonable compromise between repair costs and maintaining the original Audi suspension design. This solution is particularly attractive when servicing older vehicles, where both technical compatibility and operational economy are important.

If you are planning more extensive work on the suspension, it is worth familiarizing yourself with advice on diagnostics and system operation. Practical tips can be found in the article Suspension system – a comprehensive guide to shock absorbers, control arms, and stabilizers, which discusses, among other things, symptoms of wear and good service practices.

Expanding the repair and selecting other components

If you are planning a comprehensive repair or upgrade of the rear axle suspension area in your Audi and need other elements from the same group, such as additional control arms, ball joints, or related guide arms, check the available parts in the Audi control arms and ball joints category.

When repairing older models, where the availability of new components can be limited, a guide describing the use of salvaged parts may also be helpful – more information can be found in the material No parts at the dealership? How to handle the repair of older models using salvaged parts.