Audi Q5 FY A6 C8 A7 4K A8 D5 Rear Control Arm Wishbone Right O/S 4N0505398A

Audi Q5 FY A6 C8 A7 4K A8 D5 Rear Control Arm Wishbone Right O/S for Q5 FY, A6 C8, A7 4K, and A8 D5 models is an original suspension component designed for precise wheel guidance and stable axle operation. Thanks to factory geometry and precise fitment for the specific axle and side of the vehicle, this component ensures consistent vehicle behavior during acceleration, braking, and cornering, while also facilitating proper wheel alignment. This is a solution for users who expect reliable handling and predictable suspension performance in modern premium Audi models.

Specifications and technical data

• SKU: 4N0505398A
• Mark: Audi
• Condition: Used
• OEM Part Number: 4N0505398A
• Substitutable numbers: 4N0505398A, 4N0 505 398 A
• Location on the vehicle: Rear, Right
• Part type: Control Arm & Ball Joint Assembly
• Category: Control Arms, Ball Joints & Assemblies

Purpose and compatibility with Audi models

The presented control arm belongs to the rear axle suspension group, mounted on the right side of the vehicle. It has been designed specifically for the platforms used in the Audi Q5 (FY generation), A6 C8, A7 4K, and A8 D5, which ensures correct positioning of mounting points, appropriate arm length, and kinematics in accordance with the manufacturer's specifications. Such fitment reduces the risk of incorrect installation and simplifies service work when replacing worn suspension components.

Design and functional characteristics

As a component in the Control arms and ball joints category, the wishbone is responsible for maintaining a constant wheel position relative to the body and transferring loads from the road surface to the chassis. The applied arm design and integrated mounting points allow for:

• stable wheel guidance in both horizontal and vertical planes,
• suspension geometry control during load changes,
• effective interaction with other system components, such as shock absorbers and springs.

As a result, the rear suspension maintains predictable operating characteristics, which affects driving comfort, traction, and the effectiveness of the vehicle's safety systems.

Benefits of using an original rear right control arm

Choosing an original rear right control arm for an Audi brings a number of practical advantages, important for both private users and workshops specializing in the brand:

• Factory fitment – compatibility with the suspension design of specific Audi models reduces the need for modifications and speeds up installation.
• Consistent suspension geometry – maintaining correct wheel alignment angles facilitates subsequent adjustment on a measuring stand.
• Stable rear axle handling – proper control arm operation supports the performance of assistance systems such as ABS or ESP.
• Cost-effective choice – a used component allows for lower repair costs while maintaining the original design specifications.

Component condition and service application

The offered control arm is a used component, making it an attractive solution for post-accident repairs, replacing individual suspension elements, or restoring the performance of a high-mileage vehicle. This type of part is particularly suitable where it is crucial to maintain the original suspension design while optimizing service costs. Replacing the rear right control arm is a standard workshop procedure and should be combined with an inspection of other rear axle suspension components.

Technical support and additional information

In case of doubts regarding the selection of the correct control arm for a specific engine version or equipment level of an Audi, it is worth verifying part compatibility with the vehicle's VIN and consulting with a brand-specialized service center. Proper component fitment has a direct impact on driving safety and the durability of other suspension components.

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

To better understand the role of control arms in the entire suspension system and the relationships between shock absorbers, control arms, and stabilizers, read the guide Suspension system – a comprehensive guide to shock absorbers, control arms, and stabilizers, which discusses key service issues in an accessible way.

If you are interested in how using original, used components helps maintain the handling characteristics and specific properties of this brand's models, it is also worth reading the article Audi and pure emotion. How do used parts help maintain the brand's DNA?, which describes a practical approach to selecting parts for Audi vehicles.