Mercedes-Benz S W221 Rear Left N/S Door Window Frame Trim Cover A2217350371

Visual condition of the part 

The product shows signs of use visible in the photos. 

Mercedes-Benz S W221 Rear Left N/S Door Window Frame Trim Cover is a precisely fitted body component from the Doors and door panels group, designed for installation in the rear left section of the vehicle. The black window frame stabilizes the glass pane, improves sealing, and enhances the aesthetics of the side body area, ensuring a consistent look with other body components. It is a practical solution for users who want to restore the factory appearance of the door after a collision, corrosion, or window replacement.

Specifications and technical data

• SKU: A2217350371
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2217350371
• Substitutable numbers: A2217350371, A 221 735 03 71, EM
• Location on the vehicle: Rear, Left
• Color: Black
• Category: Doors & Door Skins

Purpose and function of the component

The rear left door window frame cover is responsible for the proper guidance and support of the window, as well as for the aesthetic finishing of the window opening edge. Its placement in the rear zone, on the driver's side, requires maintaining the correct geometry so that the window can operate freely in the guides and close properly against the seals.

The black color of the frame allows for a neutral match with most paint and trim configurations, making the component blend well with both light and dark body shades. This type of component is particularly important for post-accident repairs, replacing corroded door sections, or reconstructing the complete door structure.

Construction, fitment, and installation

The frame has been designed specifically for the W221 series, which translates into proper fitment with the door structure, window line, and adjacent seals. Dedicated vehicle placement reduces the risk of installation issues, and the correct shape makes it easier to maintain factory gaps and body lines.

The component, as a part from the Doors and door panels group, works in conjunction with the window lifting mechanism, inner lining, and outer door sheet metal. During installation, it is worth paying attention to:

• correct alignment of the frame relative to the window guides,
• checking the window operation after initial assembly of the components,
• verifying the seal tightness at the contact point with the gaskets after final installation.

Visual and functional characteristics

The black surface of the frame provides a consistent, understated look that fits well with the styling of a luxury sedan. Neutral color finishing allows the component to be used in vehicles with both classic and more dynamic visual characters.

A properly selected window frame cover reduces air turbulence around the window edge, which can translate into more comfortable acoustics inside the cabin. Additionally, proper adhesion to the seals helps maintain tightness against water and contaminants, which is important for daily vehicle use.

Condition and benefits of using a pre-owned component

The product is offered as a used part, which represents a reasonable compromise between repair costs and maintaining an appropriate level of quality. In the case of body components such as window frames, using a pre-owned component often allows for achieving factory fitment at lower financial outlays than purchasing a new replacement.

Choosing an original used frame can be particularly beneficial when repairing older vehicles, where it is crucial to maintain the visual and structural integrity of the entire door zone without excessively increasing service costs.

Expanding repairs within the door area

If you are planning a comprehensive repair or upgrade of the door zone in your Mercedes and need other components from the same group, such as panels, reinforcements, or additional profiles, check out the available parts in the Mercedes Doors and door panels category.