Mercedes W205 Rear Bumper Ventilation Flap Air Vent Left Right N/O/S A2058301201

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W205 Rear Bumper Ventilation Flap Air Vent Left Right is an original body component designed for installation in the rear section of the vehicle. It ensures proper air circulation within the wheel arch and fender area while maintaining the factory body lines characteristic of a premium Mercedes class vehicle. This is a practical solution for users looking to restore proper functionality and a cohesive look to the side body area.

Specifications and technical data

• SKU: A2058301201-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2058301201
• Substitutable numbers: A2058301201, A 205 830 12 01
• Location on the vehicle: Rear, Right, Left
• Category: Bumpers & Reinforcements

Purpose and function of the ventilation flap

The presented ventilation flap operates in the rear fender area, where it is responsible for controlled airflow and the drainage of moisture and debris from the wheel arch space. A properly selected component of this type:

• stabilizes airflow in the rear part of the body,
• reduces the accumulation of dirt and moisture in the fender area,
• supports the maintenance of proper operating conditions for wheel arch components,
• helps maintain the factory aerodynamics of the side of the vehicle.

Thanks to its fitment for the specific W205 family model, the flap works in harmony with the fender line and bumper, creating a cohesive, aesthetic, and technically correct system.

Construction and body fitment

The component has been designed for installation on both the left and right sides of the rear of the vehicle, which facilitates the selection of the appropriate solution for post-collision repairs or the replacement of worn components. The flap's construction is adapted to factory mounting points, which allows for:

• precise fitment with the fender edge,
• stable seating without additional modifications,
• maintaining tightness within the wheel arch,
• preserving the original geometry of the rear bumper and fender zone.

Such fitment is particularly important in Mercedes vehicles, where body geometry affects both ride comfort and interior acoustics.

Scope of application in the vehicle

The ventilation flap operates in the rear part of the body, in the fender area on the left or right side. Its placement in this zone means the component is exposed to water, mud, and small stones, which is why its proper condition is important for:

• protecting the interior of the wheel arch from excessive dirt,
• limiting the ingress of moisture into the body structure,
• maintaining proper ventilation of the space behind the bumper,
• the stability of components mounted in the rear of the vehicle.

Replacing a worn or damaged flap with a functional component allows for the restoration of proper operating conditions in this zone and reduces the risk of accelerated corrosion of sheet metal parts.

Characteristics of the used component

The offered flap comes from dismantling, which means it is a used part that retains functionality consistent with its intended purpose. This type of solution is often chosen by users who want to combine reasonable repair costs with maintaining the original body structure. A used component from this group allows you to:

• recreate the factory fitment within the rear fender,
• maintain a cohesive look for the side of the vehicle,
• maintain compatibility with other wheel arch components,
• reduce costs compared to purchasing a new part.

For many owners of premium class vehicles, this is a reasonable compromise between quality and the budget allocated for repairs.

Application in the Bumpers and reinforcements system

The rear fender ventilation flap works with components from the Bumpers and reinforcements group, creating a complete protective system for the rear of the body. A properly selected and installed component of this type affects:

• the stability of the bumper mounting in the rear zone of the vehicle,
• control of airflow around reinforcements and mounts,
• limiting the ingress of contaminants into the interior of the structure,
• maintaining proper operating conditions for components mounted near the fender.

This is a technical solution that supports long-term body operation without unnecessary interference with its structure.

If you are planning a comprehensive repair or upgrade of the rear bumper and fender zone in your Mercedes and need other components from the same group, such as reinforcements, beams, or additional covers, check the available parts in the Mercedes Bumpers and reinforcements category.

For drivers who are simultaneously diagnosing disturbing noises from the chassis and want to optimize service costs, a practical guide describing the causes of knocking and the possibilities of using parts from dismantling may be helpful – more information can be found in the article Knocking in the suspension? Discover a clever way to restore factory handling precision without spending a fortune at the service center.