Mercedes S205 Rear Door Frame Edge Seal Left Right N/O/S Gasket A2056970251

Mercedes S205 Estate Rear Left Right Door Seal is an original body part from the Door Seals group, designed for installation on the rear axle on the left or right side. It ensures a tight door closure, reduces road noise and airflow, and improves acoustic comfort inside the vehicle.

Specifications and technical data

• SKU: A2056970251
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2056970251
• Substitutable numbers: A2056970251, A 205 697 02 51
• Location on the vehicle: Rear, Right, Left
• Category: Door Seals

Intended Use and Vehicle Placement

The seal is specifically designed for the S205 series estate body and is intended for installation on the rear left or right door. This precise fit for the specific body model ensures proper adhesion to the door frame and body, which translates to stable operation throughout the entire opening and closing range.

This part operates in the critical contact area between the door and the body, responsible for:

• preventing water and moisture from entering the interior,
• reducing wind noise and external noise,
• dampening minor door vibrations during driving.

Technical and Functional Characteristics

As an original Mercedes part, the seal retains its factory geometry and working profile, which facilitates installation and ensures proper adhesion to the contact surfaces. The appropriately selected rubber compound and working cross-section shape allow it to maintain flexibility while providing adequate rigidity in the mounting areas.

In practice, this translates to:

• secure door closing without the need for excessive force,
• stable door retention in the closed position,
• increased protection against dirt entering the interior.

Part Condition and Service Application

The seal is a dismantled part and is offered as a used original part. This type of component is suitable for both standard replacement of a worn seal and for post-accident repairs where restoring proper door sealing is necessary. Replacing a worn seal with an original component helps maintain the structural integrity of the body and preserve the factory acoustic comfort parameters.

Benefits of Using an Original Door Seal

Using a dedicated rear seal for the S205 estate offers tangible operational benefits:

• Improved acoustic insulation – reduction of noise from the wheel arches and rear of the body.
• Interior protection – reduced risk of water and dirt entering the sills and door upholstery.
• Stable door fitment – proper contact with the body, which affects the smooth operation of locks and hinges.

By maintaining the original seal profile, the original door operating conditions can be effectively restored, which is important for both driving comfort and long-term protection of body components against corrosion.

Complementary Mercedes Door Seals

If you are planning a comprehensive repair or upgrade of the door area in your Mercedes and require other parts from the same group, such as additional perimeter seals, sill seals, or pillar seals, check the available parts in the Mercedes Door Seals category.

Service Knowledge and Used Component Operation

When selecting used body components, such as seals, it is advisable to be aware of the general principles for assessing part condition and the cost-effectiveness of replacement versus refurbishment or purchasing new parts. A broader discussion on this topic, using key drivetrain components as an example, can be found in the article Used Gearbox – When is it Worth It and What You Need to Remember, which outlines the technical and economic criteria for choosing parts from the secondary market.