Audi A4 B7 Rear Wheel Arch Liner Splash Guard Left N/S 8E0810171C

Audi A4 B7 Rear Wheel Arch Liner Splash Guard Left N/S is a factory-original body component from the Mud Flaps category, designed to protect the rear left wheel arch area from water, mud, and minor mechanical damage. A properly selected guard stabilizes the flow of debris within the wheel arch, reduces corrosion, and improves the durability of suspension components and side body panels.

Specifications and technical data

• SKU: 8E0810171C
• Mark: Audi
• Condition: Used
• OEM Part Number: 8E0810171C
• Substitutable numbers: 8E0810171C, 8E0 810 171 C
• Location on the vehicle: Rear, Left
• Category: Splash Guards & Mud Flaps

Purpose and function of the wheel arch liner

The presented guard has been designed specifically for the rear left side of the Audi A4 B7 generation body. As a wheel arch liner component, it is responsible for:

• protecting the inner part of the fender from water, salt, and gravel thrown up by the wheel,
• reducing the accumulation of mud and moisture in critical areas of the body,
• stabilizing the flow of air and debris around the wheel,
• increasing the corrosion resistance of metal components in the rear axle zone.

Thanks to its tailored geometry, the wheel arch liner works with factory mounting points, which facilitates installation and ensures proper fitment to the body structure.

Construction and fitment for Audi

The wheel arch liner has been manufactured according to the manufacturer's standards, using material selected for its resistance to stone chips, temperature changes, and road chemicals. Precise fitment for Audi allows for maintaining the original body lines and correct edge alignment relative to the fender and bumper.

The component is intended for installation in the rear – left side of the vehicle position, which eliminates the risk of error when selecting parts. The design of the wheel arch liner accounts for the mounting holes and profiles characteristic of this A4 generation, so no additional modifications are required after installation.

Benefits of using an original guard

Using the correct wheel arch liner in an Audi A4 B7 provides measurable operational benefits:

• Better body protection – reducing contact between moisture and debris with metal elements in the rear axle zone.
• Stable mounting – matching factory mounting points reduces the risk of looseness and unwanted vibrations.
• Visual consistency – maintaining the original appearance of the wheel well and proper fitment with other body components.
• Support for suspension durability – less exposure of components to mud and road salt translates into a longer service life.

This solution is particularly recommended for post-accident repairs, body restoration, or replacing a damaged guard after years of use.

Operational characteristics and installation

As an element from the Mud Flaps group, the wheel arch liner works in the immediate vicinity of the wheel, which is why its correct installation is important for protecting the entire rear zone. A properly secured guard:

• limits the splashing of water and mud onto the inner surfaces of the body,
• makes it easier to keep the wheel well area clean,
• provides stable support for trim elements in this part of the body.

When replacing, it is recommended to check the condition of clips and fasteners – using functional mounting elements allows you to fully utilize the properties of the guard and avoid unwanted looseness.

Integration with other Audi wheel arch components

The guard works with other rear body components, creating a cohesive system of protection against debris. Replacing a worn or damaged wheel arch liner is an important stage in bodywork and painting, especially when the goal is to restore the vehicle's factory functionality and aesthetics.

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 additional guards, protective profiles, or supplementary mud shields, check the available parts in the Audi Mud Flaps category.