Window Strip Mercedes W212 Door Trim Molding Rear Right O/S Black A2127351265

Visual condition of the part 

The product shows signs of use visible in the photos. 

Window Strip Mercedes W212 Door Trim Molding Rear Right O/S is an original body component designed for the rear right side of the vehicle, which helps maintain the door's seal and aesthetics. As a part of the Door seals group, it ensures stable door edge guidance and limits the ingress of water and contaminants into the interior. The black color of the molding allows for a consistent match with the factory finish of most Mercedes W212 body versions.

Specifications and technical data

• SKU: A2127351265-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2127351265
• Substitutable numbers: A2127351265, A 212 735 12 65
• Location on the vehicle: Rear, Right
• Color: Black
• Category: Door Seals

Purpose and technical function

The rear right door molding on the Mercedes W212 operates in the critical area where the door meets the body. It is responsible for:

• sealing the door edge in the rear right part of the vehicle,
• reducing wind noise and air drafts while driving,
• protecting against the ingress of moisture and fine contaminants,
• stabilizing the position of the door skin relative to the bodywork.

Thanks to its precise fit for the specific body generation, the molding works with factory mounting points, which facilitates installation and helps maintain the original door geometry.

Construction, color, and fitment

The element is finished in black, allowing for a neutral and aesthetic integration into the side line of the body. This color blends well with both dark and light paint finishes without disrupting the vehicle's factory character. The design of the molding has been specifically engineered for the rear right side, ensuring that the shape, length, and profile are consistent with the original door line of the Mercedes W212.

As a part from the Door seals category, the molding works in conjunction with other perimeter, sill, and pillar seals, creating a cohesive system for protecting the interior from external factors.

Performance characteristics and installation

The offered item is used, which in practice means it comes from vehicle dismantling and retains its factory geometry and mounting method. Proper fitment for the specific body model allows for installation without the need for structural modifications. In most cases, installation comes down to:

• removing the old, worn, or damaged molding,
• cleaning the contact surface on the door edge,
• seating the molding into the designated mounting points.

This solution allows for restoring proper door closure, reducing unwanted noise while driving, and improving the cabin's acoustic comfort. A used OEM part is often a favorable compromise between quality and repair cost, especially during comprehensive body and paint work.

Application in service practice

Replacing the rear right door molding is recommended in situations where the existing element is deformed, perished, cracked, or no longer provides an adequate seal. Symptoms may include increased noise at higher speeds, moisture appearing near the sill, or visible leaks at the door-to-body interface. Using an original molding dedicated to the Mercedes W212 allows for restoring factory door performance parameters without experimenting with universal replacements.

If you want to better understand how to optimize service costs while maintaining appropriate part quality, it is worth checking out our guide on the used parts market: Rising repair costs and the boom in used parts – how to save on car service?.

Expanding the door zone in your Mercedes

If you are planning a comprehensive repair or upgrade of the door zone in your Mercedes and need other elements from the same group, such as additional perimeter seals, edge moldings, or soundproofing components, check out the available parts in the Mercedes door seals category.

Summary

Window Strip Mercedes W212 Door Trim Molding Rear Right O/S is a practical solution for users who want to restore the proper seal and aesthetics of the rear right part of the body. The original design, fitment for the specific model, and neutral black color ensure that the element integrates well with the vehicle's factory finish. Choosing a used OEM molding allows for reduced repair costs while maintaining proper mounting and functional parameters.