Audi A4 B9 Wheel Arch Rear Left N/S Housing Cover Splash Guard 8W0810171F

Audi A4 B9 Wheel Arch Rear Left N/S Housing Cover Splash Guard is an original body component from the Mud Flaps category, designed specifically for Audi A4 B9 generation models. This rear wheel arch cover, mounted on the left side of the vehicle, provides effective protection for the wheel arch, suspension components, and wheel well against water, mud, and road debris. Using an OEM component allows you to maintain the factory body geometry and a consistent look for the entire wheel area.

Specifications and technical data

• SKU: 8W0810171F
• Mark: Audi
• Condition: Used
• OEM Part Number: 8W0810171F
• Substitutable numbers: 8W0810171F, 8W0 810 171 F
• Location on the vehicle: Rear, Right
• Category: Splash Guards & Mud Flaps

Purpose and technical function

The presented wheel arch cover is dedicated to installation in the rear part of the vehicle, on the left side, in the Audi A4 B9 model. Its purpose is to:

• limit contact of water, salt, and stones with body and suspension components,
• stabilize airflow within the wheel well,
• protect the paint and body structure against accelerated corrosion,
• reduce noise generated by wheels and debris hitting the bodywork.

Thanks to its fitment for the specific Audi body version, the cover works with factory mounting points, which facilitates installation and ensures proper adhesion to the wheel arch edge.

Construction and fitment for Audi A4 B9

Audi A4 B9 Wheel Arch Rear Left N/S Housing Cover Splash Guard has been designed as a component structurally compliant with Audi's factory standards. This means:

• maintaining the original wheel arch line and wheel well shape,
• compatibility with factory mounts and clips,
• appropriate material stiffness and flexibility, enabling safe installation and removal during service.

Such fitment allows avoiding stress on the bodywork and unwanted gaps that could cause rattling or vibrations while driving.

Benefits of using an original wheel arch cover

Using an original, used wheel arch cover in an Audi A4 B9 brings a number of practical operational benefits:

• Anti-corrosion protection – limiting the direct impact of moisture and salt on metal elements in the rear suspension zone.
• Stable handling – proper shaping of the wheel arch promotes predictable vehicle behavior at higher speeds.
• Consistent body aesthetics – no gaps in the wheel arch area, which is important both visually and for potential vehicle resale.
• The possibility of economical repair after mechanical damage or collision, without the need to resort to replacements with uncertain fitment.

Component condition and service application

The offered wheel arch cover is a used part, which allows for a beneficial combination of functionality and an attractive purchase price. This type of component is particularly useful for:

• post-accident repairs in the rear part of the vehicle,
• removing the effects of mechanical damage caused by, for example, stone impacts or packed snow,
• comprehensive renovation of the wheel arch zone in an Audi A4 B9 when the existing cover is cracked, deformed, or missing fragments.

Choosing an original element from this group allows you to maintain compliance with service documentation and manufacturer standards, which is important for both safety and the durability of the repair.

Modernization expansion – Audi Mud Flaps

If you are planning a comprehensive repair or modernization of the wheel arch and wheel protection zone in your Audi and need other elements from the same group, such as additional covers, protective profiles, or elements protecting the lower parts of the body, check the available parts in the Audi Mud Flaps category.

For drivers also considering used components in other VAG group brands, practical tips on selection and installation can be found in the article: Volkswagen – solidity and reliability. Why are used VW parts a reasonable choice?.