Mercedes S212 Rear Bumper Ventilation Flap Grille Air Vent Left N/S A2128300142

Mercedes S212 Rear Bumper Ventilation Flap Grille Air Vent Left N/S is an original body ventilation system component designed for installation in the rear left section of the vehicle. Thanks to its factory design, it ensures proper air extraction from the cabin and pressure stabilization inside the body, which contributes to user comfort and the durability of seals. This solution is dedicated to Mercedes models, allowing for technical consistency with other body components.

Specifications and technical data

• SKU: A2128300142
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2128300142
• Substitutable numbers: A2128300142, A 212 830 01 42
• Location on the vehicle: Rear, Left
• Category: Hoses, Lines & Pipes

Purpose and function in the body system

The rear air vent in the form of a ventilation grille plays a key role in the controlled airflow between the vehicle interior and the surroundings. Located in the rear left part of the body, it works with the ventilation system and air ducts, enabling:

• extraction of excess air from the cabin when closing doors or the tailgate,
• stabilization of pressure inside the vehicle,
• reduction of window fogging by improving air circulation,
• reduction of unwanted aerodynamic noise compared to non-factory solutions.

Precise fitment to the Mercedes S212 body allows for maintaining tightness and proper airflow guidance without interfering with the body structure.

Construction and fitment for Mercedes S212

The component has been designed specifically for the S212 platform, which translates into an exact fit with factory mounting holes and compatibility with original seals. The air vent works with the side paneling and trunk components, without interfering with other parts in the rear of the vehicle.

The placement on the rear left side ensures proper airflow distribution in the estate (wagon) body type, while also facilitating service and potential replacement during bodywork or ventilation system repairs.

Benefits of using the original air vent

Using the factory ventilation grille in the Mercedes S212 brings a number of practical operational benefits:

• Compatibility with the body structure – no need for modifications, drilling, or fitting non-factory elements.
• Maintaining the airflow path designed by the manufacturer, which promotes stable operation of the ventilation and heating system.
• Better protection of the interior against moisture and air turbulence compared to random replacements.
• Material and visual consistency with other Mercedes body components.

For users who pay attention to the proper operation of the ventilation, acoustic comfort, and the durability of door and tailgate seals, installing the original air vent is a technically justified solution.

Component condition and service application

The offered air vent is in used condition, making it an attractive option for accident repairs, restorations, or replacing damaged elements in the rear of the body. It is particularly useful where maintaining the original vehicle construction while optimizing service costs is important.

The component can be used both for local bodywork repairs in the rear left corner area and for comprehensive trunk zone reconstruction when it is necessary to replace several ventilation system components.

If you are planning a comprehensive repair or upgrade of the rear body zone in your Mercedes and need other elements from the same group, such as flexible hose sections, connectors, or ventilation system drain tubes, check the available parts in the Mercedes hoses, lines and pipes category.

To compare design solutions used in different brands and segments, including sports models, you can read the analysis of engine, brake, and chassis construction in the article Audi RS vs other models – what is hidden under the hood and chassis?, which also discusses the selection of spare parts in the context of demanding applications.