Mercedes-Benz S-Class W220 Rear Left Door N/S Weatherstrip Trim Strip

Mercedes-Benz S-Class W220 Rear Left Door N/S Weatherstrip Trim Strip is a precisely fitted body component responsible for effective water drainage and protecting the interior from noise and contaminants. As part of the Door Upholstery group, it ensures proper sealing of the rear left door area, which translates into stable window operation and acoustic comfort in the cabin. This is a practical solution for users who want to restore the factory protective parameters in their Mercedes.

Specifications and technical data

• SKU: A2206900380
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2206900380
• Substitutable numbers: A2206900380, A 220 690 03 80, AS
• Location on the vehicle: Rear, Left
• Category: Door Panels

Purpose and function in the vehicle

The presented door weatherstrip trim strip is designed for installation in the rear left part of the S-Class W220 generation body. The component works in direct contact with the window and the door panel, creating a barrier against water, dust, and wind gusts. As a result, it reduces the risk of moisture in the upholstery, lowers noise levels while driving, and supports the proper operation of the window lifting mechanism.

The placement on the vehicle is factory-defined, which is why the weatherstrip is properly profiled for the geometry of the rear left side of the body. This allows for secure seating in the mounts and maintains the correct contact line with the window and the door edge.

Compatibility and fit for Mercedes-Benz

The component has been designed specifically for Mercedes-Benz S-Class W220 models, which means that its shape, length, and mounting method are consistent with the manufacturer's factory specifications. Such a fit facilitates installation and minimizes the risk of leaks resulting from the use of parts with incorrect geometry.

For Mercedes owners, maintaining the visual and functional consistency of the body is particularly important. Using a weatherstrip dedicated to a specific body version allows for maintaining a uniform appearance of the door edge and proper window adhesion, which is significant both aesthetically and functionally.

Performance characteristics and advantages of use

The rear left door weatherstrip trim strip performs several key operational functions:

• limits the ingress of water and moisture into the door interior and cabin,
• stabilizes the window movement in the guide,
• reduces wind noise at higher speeds,
• supports the protection of door upholstery against external dirt.

By maintaining proper tightness in the rear left door area, overall driving comfort is improved, and internal components – such as upholstery or electrical wiring – are less exposed to the long-term effects of moisture. This, in turn, can translate into lower susceptibility to corrosion and failures in this area.

Condition, origin, and installation aspects

The offered weatherstrip belongs to the group of used parts, which allows for economical repair while maintaining the original geometry and performance characteristics of the component. For many Mercedes users, this is a reasonable compromise between costs and maintaining the proper fit to the body.

Installing the weatherstrip in the rear left door area usually does not require interference with the body structure – the component is prepared for seating in the factory-provided mounting points. When replacing, it is worth paying attention to thoroughly cleaning the door edge and window guide so that the newly installed weatherstrip can perform its full protective function.

Expanding the door area in Mercedes-Benz

If you are planning a comprehensive repair or upgrade of the door area in your Mercedes and need other elements from the same group, such as additional weatherstrips, trim strips, or soundproofing elements, check the available parts in the Mercedes Door Upholstery category.

For drivers interested in a broader approach to optimizing service costs, including the use of used OEM components, a guide material describing the advantages of such a solution may be helpful – you can find more information in the article Smart Skoda servicing – why second-hand parts are the best choice for your wallet.