Mercedes W251 Side Window Shielding Seal Gasket Strip Rear Right O/S A2516702239

Mercedes W251 Side Window Shielding Seal Gasket Strip Rear Right O/S is an original body component from the Window seals and trims group, designed for installation in the rear right section of the vehicle. It ensures a tight fit for the side window, reduces wind noise, and helps maintain proper protection of the interior against water and debris. Thanks to its factory origin from the Mercedes brand, it guarantees a proper fit to the door structure and window frame.

Specifications and technical data

• SKU: A2516702239
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2516702239
• Substitutable numbers: A2516702239, A 251 670 22 39
• Location on the vehicle: Rear, Right
• Category: Window Seals, Gaskets & Trims

Purpose and function of the seal

The presented seal is designed for installation in the rear right part of the body, in the side window area. Its tasks include:

• stable guidance of the window in the door or body frame,
• limiting the ingress of water and moisture into the interior,
• reduction of wind noise while driving,
• protection of the glass edge against mechanical damage.

Thanks to a design tailored to the specific W251 body generation, the seal works with factory guides and fittings, which facilitates installation and subsequent operation.

Original origin and Mercedes fitment

The seal comes from the Mercedes manufacturer's range, which means maintaining factory dimensional tolerances and compatibility with original body components. In practice, this translates into:

• secure fitment with the window frame and glass,
• proper operation of the window lifting and lowering mechanism,
• no need for modifications or adjustments to the part on the vehicle.

The original seal from this series is particularly recommended for repairs where maintaining factory acoustic comfort and body tightness is a priority.

Characteristics of the used component

The offered product is a used component, which in the case of original body parts often represents a favorable compromise between quality and repair cost. Seals from dismantling, coming from vehicles of the same brand and generation, retain the correct geometry and material flexibility, provided they have not been operated in extreme conditions.

When choosing a used seal, it is worth paying attention to:

• continuity of the rubber profile along its entire length,
• absence of cracks and deep abrasions in the contact zone with the glass,
• surface condition in the mounting areas to the body.

Benefits of using an original side seal

Using an original side seal in the rear right part of the body allows for restoring the proper operating conditions of the vehicle after replacing the window, repairing the door, or simply after the factory component has worn out. The most important advantages include:

• stable window operation – reduction of play and vibrations while driving,
• better acoustic insulation – reduction of noise in the cabin at higher speeds,
• interior protection – reduction of the risk of water leaks in the area of the rear seat and trunk,
• maintaining the aesthetics of the glass edge and door frame.

Selection and additional information about used parts

When selecting a side seal for a specific vehicle, the manufacturer's markings and parameters assigned to the model are helpful. It is also worth verifying whether the sought-after component corresponds to the body version and mounting side to avoid fitment problems.

If you are considering whether a better solution in your case would be to refurbish the existing component or install a used original part, the article describing the differences between these approaches may be helpful – Refurbished or used original – which part to choose for repair?.

If you are planning a comprehensive repair or upgrade of the window area in your Mercedes and need other components from the same group, such as additional seals, trim strips, or window guides, check the available parts in the Mercedes Window seals and trims category.