Mercedes CLS W218 Window Strip Rear Door Right O/S Trim Moulding A2187300424

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes CLS W218 Window Strip Rear Door Right O/S Trim Moulding is a precision body component from the Window seals and trims category, designed specifically for Mercedes models. It is responsible for effectively draining water from the window and ensuring stable guidance within the track, which translates into quiet operation of the mechanism and protection of the door interior against moisture. Thanks to its factory-fit design for the rear right side of the body, it ensures visual and technical consistency with other body components.

Specifications and technical data

• SKU: A2187300424
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2187300424
• Substitutable numbers: A2187300424, A 218 730 04 24
• Location on the vehicle: Rear, Right
• Category: Window Seals, Gaskets & Trims

Purpose and function in the bodywork

The rear right window strip in the Mercedes CLS W218 works in direct contact with the side window, creating a flexible barrier between the glass and the door panel. Its tasks include:

• draining water and debris from the window surface during raising and lowering,
• limiting moisture penetration into the door interior,
• reducing wind noise in the window area,
• stabilizing the window movement within the track.

Thanks to its proper profile, the strip supports the correct operation of the window lifting mechanism, which is important for both user comfort and the durability of the entire system.

Fitment for Mercedes CLS W218

The offered strip is intended for installation on the rear, right side of the body, which eliminates the problem of universality and the need for "forced" fitting. The design corresponds to the factory specifications for the Mercedes CLS W218, ensuring that:

• the strip line aligns perfectly with the edge of the window and door,
• visual continuity with other seals is maintained,
• installation does not require any alterations or modifications to the bodywork.

Such a fit is particularly important in premium-class cars, where the precision of component alignment influences the overall impression of body quality.

Characteristics of the used component

The strip comes from the used Mercedes parts segment, which allows for maintaining the original geometry and operating characteristics of the seal while optimizing repair costs. This type of component is a good choice in situations where:

• the original strip is mechanically damaged (cracks, deformations),
• the wiping edge has worn out and leaks have appeared,
• there is unwanted wind noise in the area of the rear window.

Using an original window strip from the secondary market allows you to maintain the factory operation of the window and avoid problems typical of aftermarket replacements with different profiles or material hardness.

Benefits of replacing the window strip

Replacing a worn-out window strip with a functional component brings measurable operational benefits:

• reduced window fogging due to better moisture control inside the door,
• reduced risk of corrosion for internal door components,
• smoother operation of the window lifting mechanism,
• improved acoustic comfort inside the vehicle.

For Mercedes CLS W218 users, this is a simple way to restore the proper functioning of the side window without interfering with the door structure.

Expanding upgrades within seals and trims

If you are planning a comprehensive repair or upgrade of the side window sealing zone in your Mercedes and need other elements from the same group, such as external window trims, internal guide seals, or additional wiping profiles, check out the available parts in the Mercedes window seals and trims category.

For drivers interested in a broader perspective on the selection and modernization of body and maintenance components, an article describing the evolution of design in popular sports models may be helpful – you can find it here: Hot-hatch legend: the evolution of the VW Golf GTI from Mk1 to Mk8 – design changes and VW car parts.