Audi A4 B9 A5 F5 Control Arm Wishbone Rear Left Right N/S 8W0505361E

Audi A4 B9 A5 F5 Control Arm Wishbone Rear Left Right N/S is a component from the Control arms and ball joints category, designed for operation in the vehicle's rear axle. Engineered for installation on either the left or right side at the rear, it ensures stable wheel tracking and precise maintenance of suspension geometry in Audi A4 B9 and A5 F5 models. This is a solution for users who expect a robust construction and improved handling characteristics without interfering with the factory suspension design.

Specifications and technical data

• SKU: 8W0505361E
• Mark: Audi
• Condition: Used
• OEM Part Number: 8W0505361E
• Substitutable numbers: 8W0505361E, 8W0 505 361 E
• Location on the vehicle: Rear, Right, Left
• Category: Control Arms, Ball Joints & Assemblies

Purpose and function in the suspension system

The presented control arm operates in the rear suspension, where it is responsible for maintaining the correct position of the wheel relative to the body and controlling geometry angles during driving and braking. Its placement on the vehicle covers the rear axle on the left or right side, allowing for flexible application depending on service requirements.

Thanks to the properly selected geometry of the control arm, the suspension system maintains predictable behavior in corners, and the body filters road irregularities more effectively. This is particularly important in Audi A4 B9 and A5 F5 class cars, where comfort combined with confident handling is expected.

Benefits of using an original Audi control arm

The control arm comes from the Audi brand offer, which means maintaining factory suspension performance parameters and full compatibility with the rear axle construction. The original solution ensures:

• proper fitment with other suspension and body components,
• maintenance of the handling characteristics designed by the manufacturer,
• no need for mounting modifications or additional adapters.

For the user, this means predictable vehicle behavior after repair, easier geometry adjustment, and a lower risk of unwanted play or noise in the rear of the vehicle.

Installation characteristics and application

The placement on the vehicle covering the rear on the right or left side facilitates the selection of the component for one-sided repairs or when replacing a pair of control arms. The construction is prepared to work with the standard mounting points in the Audi A4 B9 and A5 F5, which promotes efficient installation in workshop conditions.

In practice, replacing a worn control arm with the presented component helps to reduce phenomena such as rear axle instability, vehicle pulling, accelerated tire wear, or incorrect reactions to road irregularities. After installation, it is recommended to perform a geometry adjustment to fully utilize the potential of the newly installed component.

Importance for safety and driving comfort

A functional control arm has a direct impact on safety, as it is responsible for maintaining constant tire contact with the road surface and vehicle stability during load changes. In Audi A4 B9 and A5 F5 models, where the suspension system is tuned for dynamic yet comfortable driving, the proper condition of components from the Control arms and ball joints group is crucial for maintaining the car's factory character.

Regular inspection of play and the condition of connections in the rear axle, and if necessary, replacing the control arm with the appropriate component, allows for the reduction of vibrations, knocking, and uncertain handling, which translates into more comfortable and predictable vehicle operation.

Technical support and additional materials

To better understand the role of control arms in the entire running gear system and the relationships between shock absorbers, control arms, and stabilizers, it is worth referring to our guide material. Practical tips regarding suspension diagnostics and operation can be found in the article Suspension system – a comprehensive guide to shock absorbers, control arms, and stabilizers, which discusses typical signs of wear and good service practices.

If you are planning a comprehensive repair or upgrade of the rear suspension zone in your Audi and need other components from the same group, such as additional arms, ball joints, or mounting brackets, check the available parts in the Audi control arms and ball joints category.