Mercedes-Benz S W220 1 Seal Sealing Rail Left Right N/O/S Rear Door A2207300724

The Mercedes S W220 Rear Door Rail Seal is a precisely fitted component from the Doors and Door Panels group, designed for the rear section of the luxury S-Class body. It ensures a tight seal for the window and stable mounting of the rail within the door, contributing to smooth operation of the window regulator and reduced cabin noise. Thanks to its factory profile, the seal maintains the correct door geometry and enhances the interior's acoustic comfort.

Specifications and technical data

• SKU: A2207300724-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2207300724
• Substitutable numbers: A2207300724, A 220 730 07 24
• Location on the vehicle: Rear, Right, Left
• Category: Doors & Door Skins

Vehicle Application and Placement

The seal is designed for installation in the rear section of the vehicle body, suitable for both the right and left sides. This solution simplifies selecting the correct part during door servicing, especially when seals on both sides of the car need replacement. Its placement in the window guide area directly impacts the operational smoothness of the window regulator and protects the interior of the door from moisture.

Technical Function and Installation Benefits

The rear door rail seal is responsible for:

• maintaining a stable position of the window guide rail within the door,
• reducing operational play that can cause knocking and vibrations during driving,
• sealing the window regulator's working space against excessive moisture ingress,
• preserving the correct vertical window operation geometry.

By maintaining appropriate pressure and flexibility, a correctly chosen seal helps minimize the risk of window jamming and unwanted noises originating from inside the door. This is particularly important in a premium model where acoustic comfort and smooth equipment operation are key elements of the overall quality experience.

Characteristics of a Used Part

The offered seal is a used part, meaning it has been removed from a vehicle. It retains its original shape and profile, characteristic of the door construction for this model. In practice, this translates to good fitment at the factory mounting points and compatibility with the existing window mechanism. Choosing an original, used component allows for maintaining the door's structural integrity without the need to adapt aftermarket replacements with uncertain geometry.

Support for Door Area Expansion

If you are planning a comprehensive repair or upgrade of the door area in your Mercedes and require other components from the same group, such as panels, reinforcements, or additional window guide elements, check the available parts in the Mercedes Doors and Door Panels category.

Additional Technical Materials

To compare construction solutions used across different brands and segments, including bodywork, chassis, and powertrain systems, an article describing the differences between sport and standard versions might be helpful. More information can be found in the material: Audi RS vs. Other Models – What Lies Under the Hood and Chassis?.