Wheel Arch Cover BMW E90 E91 M Sport Lower Bottom Left N/S Housing Trim 8040101

Wheel Arch Cover BMW E90 E91 M Sport Lower Bottom Left N/S Housing Trim is a body component designed to protect the lower part of the wheel arch on the driver's side. Thanks to its precise fit to the body lines of the BMW 3 Series E90/E91 generation in the M Sport version, it ensures stable mounting and effective protection of the wheel arch area against dirt and mechanical damage. This is a practical solution for users who want to keep their chassis structure in good technical condition.

Specifications and technical data

• SKU: 8040101-4
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8040101
• Substitutable numbers: 8040101, 51718040101, 51714789191, 4789191, EM
• Location on the vehicle: Left
• Category: Splash Guards & Mud Flaps

Purpose and function of the component

The presented wheel arch cover is dedicated to installation on the left side of the vehicle in BMW 3 Series E90/E91 models with the M Sport package. Its task is to limit direct contact of suspension components, sills, and the lower part of the body with water, mud, road salt, and small stones. As a result, it reduces the risk of accelerated corrosion and mechanical damage in the wheel arch area.

The element belongs to the body group related to the protection of wheels and lower parts of the bodywork, which is important for both the durability of the structure and maintaining proper aerodynamics in this part of the vehicle.

Construction and fitment for BMW E90/E91 M Sport

The cover has been designed as a component compatible with the factory geometry of the BMW E90/E91 wheel arch in the M Sport version. Properly profiled edges allow for installation at original mounting points, which facilitates service and limits the need for additional modifications. Such a solution allows for maintaining the structural integrity of the body and proper wheel guidance in the wheel arch zone.

Thanks to the use of a dedicated shape, the element works well with other M Sport package components, such as the bumper, wheel arches, and sills, which translates into an aesthetic appearance and proper drainage of contaminants from under the wheel.

Benefits of installing the wheel arch cover

Using this cover in a BMW E90/E91 M Sport brings a number of practical operational benefits:

• protection of the lower part of the wheel arch and adjacent suspension elements against water, mud, and road salt,
• reduction of dirt accumulation in hard-to-reach areas of the structure,
• support for maintaining the stability of elements mounted in the wheel arch zone,
• maintaining the consistent look of the M Sport package on the driver's side.

This solution is particularly useful in cars used all year round, where protection of the body against external factors has a direct impact on the long-term durability of the vehicle.

Condition, origin, and compatibility verification

The offered wheel arch cover comes from a BMW vehicle and is a secondary market component. Such components are often chosen for post-accident repairs, replacing damaged covers, or restoring the completeness of the M Sport package on the driver's side. It is worth comparing the shape and placement on the vehicle with the currently installed element before purchase to confirm full compatibility.

If you want to deepen your knowledge on selecting parts by factory numbers and avoid mistakes when shopping online, use our practical guide: Risk-free online parts shopping – 5 proven ways to verify component compatibility.

Extending wheel arch protection in BMW

If you are planning a comprehensive repair or upgrade of the wheel arch area in your BMW and need other elements from the same group, such as additional covers, extensions, or lower panels, check out the available parts in the BMW Mudflaps category.