Mercedes C117 Window Seal Door Front Right O/S Gasket Sealing A1177250265

Mercedes C117 Door Window Seal Right Front A1177250265 is an original part from the Window Seals and Trim group, designed for installation on the front right door of the C117 body type. The precisely shaped sealing profile supports proper window guidance, reduces aerodynamic noise, and helps maintain cabin airtightness.

Specifications and technical data

• SKU: A1177250265
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1177250265
• Substitutable numbers: A1177250265, A 117 725 02 65
• Location on the vehicle: Front, Right
• Category: Window Seals, Gaskets & Trims

Purpose and Function of the Seal

The presented seal is designed for operation in the front – right side of the vehicle, where it is responsible for stable window guidance and control of airflow and moisture between the window and the door structure. A properly selected element of this type reduces noise at higher speeds, minimizes the risk of drafts, and helps protect the interior from water and dirt.

Thanks to its factory-matched profile to the C117 door geometry, the seal works with the window lifting mechanism without causing excessive resistance or unwanted stress. This is particularly important in vehicles equipped with precise window guides and mechanisms, where an incorrect part can accelerate component wear.

Benefits of Using an Original Mercedes Seal

Using an original seal in the front right door translates into a number of practical operational benefits:

• maintaining the factory fit line of the window to the door frame,
• reducing cabin noise during highway driving,
• better protection against water and moisture in the door area,
• stable cooperation with the factory window lifting mechanism,
• maintaining a consistent window edge aesthetic.

For the user, this means a more comfortable ride, a lower risk of window fogging, and reduced potential for corrosion issues around the door edges. Replacing a worn seal with a part from the same construction group allows for the restoration of the body's original acoustic and functional parameters.

Installation Characteristics and Fitment

The seal is designed for installation in the factory mounting points on the front passenger-side door. The appropriately shaped working profile facilitates seating in the guides and clips, which reduces service time and the risk of improper element placement. With correct installation, the seal edge creates an even contact line with the window, which is crucial for maintaining airtightness.

The part comes from a Mercedes vehicle, ensuring compliance with factory dimensional tolerances and appropriate material stiffness and flexibility. As a result, no additional adjustments or trimming are needed after installation, and the seal immediately works with the existing door structure.

Condition and Service Application

The offered seal is a used part, making it an attractive service solution for situations where cost optimization while maintaining original geometry and fitment is a priority. It is suitable for both replacing a damaged or deformed seal after a collision and for gradual renovation of the door and window areas in daily-driven C117 models.

Selecting the correct seal for a specific body variant and vehicle side is crucial to avoid problems with door closing, window operation, and excessive noise. If necessary, it is advisable to compare the shape and profile of the old part with the offered part before final installation.

Service Expansion and Technical Knowledge

If you are planning a comprehensive repair or upgrade of the window and door areas in your Mercedes and need other parts from the same group, such as additional guide seals, trim strips, or edge seals, check the available parts in the Mercedes Window Seals and Trim category.

For owners of this brand who are simultaneously refreshing the powertrain, an article describing the characteristics of the OM642 engine, common faults, and the impact of accessories on performance may be a useful addition to your knowledge – you can find it here: Second Life for the Mercedes OM642 Engine – How Injectors and Turbo Restore Power to the 3.0 V6 CDI.