Audi A8 D4 Front Axle Wishbone Control Arm Front Left N/S 4H0407155A

Audi A8 D4 Front Axle Wishbone Control Arm Front Left N/S is an original component from the Control arms and ball joints group, designed for precise wheel guidance and suspension stabilization. Thanks to its factory geometry and perfect fit for the Audi A8 D4 design, this component allows for restoring the proper operation of the running gear, improving handling, comfort, and the vehicle's predictable response.

Specifications and technical data

• SKU: 4H0407155A
• Mark: Audi
• Condition: Used
• OEM Part Number: 4H0407155A
• Substitutable numbers: 4H0407155A, 4H0 407 155 A, 4H0 407 151 B, 4H0407151B
• Location on the vehicle: Front, Left
• Category: Control Arms, Ball Joints & Assemblies

Purpose and vehicle placement

The offered control arm is dedicated for installation on the front axle on the left side, which is crucial for maintaining the correct suspension geometry in the Audi A8 D4. The element works with other system components, such as ball joints, shock absorbers, and the stabilizer, and is responsible for:

• maintaining the correct position of the wheel relative to the body,
• stable vehicle handling during braking and acceleration,
• controlling body roll in corners,
• reducing unwanted play and vibrations in the steering system.

Technical and functional characteristics

The front left control arm for the Audi A8 D4 has been designed as a structural element that transfers loads from the wheel to the body while ensuring appropriate suspension flexibility. The use of a ball joint and properly selected mounting points allows for:

• precise wheel guidance throughout the entire suspension travel range,
• maintaining factory camber and toe angles,
• reducing tire wear resulting from incorrect geometry,
• increasing vehicle stability at higher speeds.

Thanks to a design consistent with solutions used by Audi, the control arm works with factory mounting points without the need for modifications, which facilitates installation and subsequent geometry adjustment.

Condition of the item and benefits of using a used part

The presented control arm is a used item, which allows for an economical suspension repair while maintaining original manufacturing quality. Choosing a dismantled part is a beneficial solution for users who:

• want to maintain the consistency of suspension components with Audi's factory specifications,
• are looking for a compromise between repair cost and component durability,
• prefer parts originating from original production rather than replacements of unknown origin.

A properly selected, used control arm can effectively restore proper vehicle handling, reduce knocking and play in the suspension, and improve driving comfort without the need to invest in a completely new set.

Importance for safety and driving comfort

A functional front left control arm in the Audi A8 D4 has a direct impact on driving safety. Wear or damage to this element can result in unstable handling, the car pulling to one side, accelerated tire wear, or impaired braking efficiency. Replacing it with a functional component allows you to:

• increase the predictability of the car's behavior in emergency situations,
• reduce vibrations transmitted to the steering wheel,
• achieve smoother handling of road irregularities,
• maintain the comfort characteristic of the premium segment to which the Audi A8 belongs.

To better understand the role of such elements in the entire running gear system, it is worth reading educational material describing the operation of the suspension, shock absorbers, control arms, and stabilizers – details can be found in the article Suspension system – a comprehensive guide to shock absorbers, control arms, and stabilizers.

Expansion and modernization of the Audi suspension system

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

Summary

The Audi A8 D4 Front Axle Wishbone Control Arm Front Left N/S is a technically matched, original element from the Control arms and ball joints group, which allows for restoring proper suspension geometry and handling stability. The use of this component is particularly recommended in cases of noticeable play in the running gear, uneven tire wear, or a decrease in driving comfort. By choosing an original Audi control arm, you are investing in the structural consistency of the suspension and maintaining the driving characteristics intended by the manufacturer.