Mercedes W220 Window Rear Door Guide Rail Seal Frame Left N/S Side A2207350425

Mercedes W220 Window Rear Door Guide Rail Seal Frame Left N/S Side is an original component from the Door seals group, designed for installation in the rear left door of Mercedes vehicles. It ensures proper window guidance and stable edge sealing, which translates into acoustic comfort and protection of the interior against moisture.

Specifications and technical data

• SKU: A2207350325
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2207350325
• Substitutable numbers: A2207350325, A 220 735 03 25
• Location on the vehicle: Rear, Left
• Part type: Door Seal
• Category: Door Seals

Purpose and function of the window guide rail seal

The presented window guide rail seal is dedicated to the rear left body area of the Mercedes W220 model. It is responsible for the stable guidance of the window within the door frame and maintaining proper pressure against the guides, which reduces play, unwanted vibrations, and noise while driving. Thanks to its proper profile and fit to the door structure, this component supports:

• correct operation of the window lifting and lowering mechanism,
• maintenance of a seal between the window and the door frame,
• reduction of wind noise at higher speeds,
• protection of the door interior against excessive ingress of water and contaminants.

Construction and fit for Mercedes W220

The seal has been designed specifically for the geometry of the rear left door in the Mercedes W220, ensuring proper adhesion to the frame edge and compatibility with factory window guides. The appropriately shaped cross-section allows for an even distribution of pressure on the window surface, which promotes smooth movement and reduces the risk of jamming. The original origin from the Mercedes range means maintaining factory dimensional tolerances, which facilitates installation and minimizes the need for additional adjustments. This is particularly important for components such as guide rail seals, where even small deviations can affect window operation.

Installation and operational characteristics

The rear left window guide rail seal is intended for installation in factory mounting points in the door, without the need for structural modifications. When properly installed, it supports:

• maintaining a stable window position throughout its entire range of motion,
• reducing rattles and knocks coming from the door area,
• maintaining vehicle comfort during daily use. The used condition allows for an economical replacement of the component while maintaining the original manufacturer's specification, which is beneficial for repairs of vehicles used on a daily basis.

Application in the rear left body area

The placement on the vehicle in the rear left door area means the seal operates under conditions of exposure to variable temperatures, moisture, and window movement. A properly selected component helps maintain the consistency of the body lines and the comfort of rear-seat passengers by reducing drafts and noise coming from the outside. To maintain the full functionality of the window system in the Mercedes W220, it is worth treating the replacement of the guide rail seal as part of comprehensive door maintenance, especially when noticeable problems with window smoothness or leaks occur.

Offer expansion and additional information

If you are planning a comprehensive repair or upgrade of the door area in your Mercedes and need other components from the same group, such as guides, perimeter seals, or sealing strips, check the available parts in the Mercedes door seals category. For drivers interested in comparing technical solutions in various sports and production models, including engine construction, braking systems, and chassis, an article describing the differences between high-performance versions and standard variants may be helpful – you can find it here: Audi RS vs other models – what is hidden under the hood and chassis?.