Audi A3 8Y Wheel Housing Arch Liner Splash Guard Rear Right O/S 8Y0810172A

Audi A3 8Y Wheel Housing Arch Liner Splash Guard Rear Right O/S is a body component from the Splash Guards group, specifically designed to protect the rear right wheel arch area in the Audi A3 8Y generation model. Its precisely matched shape and mounting points allow for stable installation in the bodywork, which translates into effective protection of the wheel zone against dirt and external factors.

Specifications and technical data

• SKU: 8Y0810172A
• Mark: Audi
• Condition: Used
• OEM Part Number: 8Y0810172A
• Substitutable numbers: 8Y0810172A, 8Y0 810 172 A
• Location on the vehicle: Rear, Right
• Category: Splash Guards & Mud Flaps

Purpose and function of the wheel arch liner

The rear right wheel arch liner in the Audi A3 8Y is responsible for shielding the inner part of the bodywork in the wheel area, limiting the ingress of water, mud, road salt, and small stones into the wheel well. As a result, this component helps protect the sheet metal, electrical harnesses, and adjacent suspension components from accelerated corrosion and mechanical damage.

Its placement on the vehicle in the Rear, Right zone means the liner operates in demanding conditions – particularly exposed to surface contaminants. A properly selected component allows for maintaining the factory geometry of the shield and ensures proper drainage of water and dirt from the wheel well.

Benefits of using an original Audi wheel arch liner

Using a wheel arch liner dedicated to the Audi A3 8Y ensures:

• precise fit to the body shape and factory mounting points,
• stable retention while driving, without unwanted play or vibrations,
• consistent edge alignment with other wheel well components,
• preservation of the manufacturer-designed anti-corrosion protection in this zone.

Choosing a used component from the same construction group allows for an economical repair while maintaining proper geometry and compatibility with the bodywork. This is a practical solution when replacing a damaged wheel arch liner due to a collision, local corrosion, or mechanical cracking.

Installation characteristics

The rear right wheel arch liner for the Audi A3 8Y is prepared for installation at factory mounting points, which facilitates work both in a professional service center and in a specialized body and paint shop. Properly formed edges and mounting holes allow for correct alignment with the outer fender panel, bumper, and internal wheel well components.

During replacement, it is recommended to check the condition of fasteners, clips, and screws to maintain full connection rigidity. A correctly installed wheel arch liner minimizes the risk of dirt accumulation in hard-to-reach places and facilitates subsequent service operations within the suspension and braking system.

Application in the body protection system

This component works in conjunction with other shields in the rear body area, creating a coherent system of protection against external factors. This limits moisture penetration into structural spaces, which is significant for the long-term durability of the vehicle. A properly selected wheel arch liner also helps maintain the aesthetics of the wheel well, which is important during technical inspections and when reselling the car.

If you are planning a comprehensive repair or upgrade of the wheel arch zone in your Audi and need other elements from the same group, such as covers, splash guards, or additional protective panels, check the available parts in the Audi Splash Guards category.

Additional technical support

When working on the body and suspension, there is often a need to verify the condition of the vehicle's steering system. If you want to better understand the relationship between body components and steering precision, it is worth reading our guide: Steering system and power steering – how it works and what goes wrong?. This will allow you to better plan the scope of service work and select the appropriate components.