Mercedes CLC-Class CL203 Front Right O/S Door Weatherstrip Seal A2037271435

Mercedes CLC-Class CL203 Front Right O/S Door Weatherstrip Seal is an original component from the Doors and door panels group, designed for installation on the front right door of the vehicle body. It ensures a tight seal between the door leaf and the bodywork, reducing noise, moisture ingress, and unwanted contaminants from entering the vehicle interior. This is a practical solution for users who want to restore factory acoustic comfort and cabin protection parameters.

Specifications and technical data

• SKU: A2037271435
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2037271435
• Substitutable numbers: A2037271435, A 203 727 14 35, EM
• Location on the vehicle: Front, Right
• Category: Doors & Door Skins

Purpose and fitment

The presented seal is dedicated to Mercedes CLC-Class models in the CL203 body style, located on the front, right side of the vehicle. The profile design has been engineered for specific doors, allowing for precise placement on the edge and secure adhesion to the sheet metal surface. This maintains proper closing geometry, and the doors do not require additional adjustments resulting from component mismatch.

Sealing function and interior protection

The door seal plays a key role in protecting the cabin from external factors. It is responsible for:

• limiting the penetration of water and moisture in the contact area between the door and the body,
• reducing wind noise when driving at higher speeds,
• minimizing the ingress of dust and fine contaminants,
• stabilizing the door in the closed position through proper pressure.

A well-fitted seal translates into higher acoustic comfort, improved perceived ride quality, and protection of upholstery and trim elements against premature wear.

Characteristics of the original Mercedes component

The offered seal comes from the Mercedes range, which means maintaining factory manufacturing standards and dimensional compatibility with the CLC-Class CL203 doors. The original profile ensures:

• proper routing along the entire door perimeter,
• appropriate flexibility in corners and at sheet metal pressings,
• stable grip on the edge without the need for additional modifications.

Thanks to this, the installation process is predictable, and the final result is comparable to the factory assembly of the vehicle.

Condition and benefits of using a used part

The item is offered in used condition, which allows for economical repair while maintaining the manufacturer's original specifications. In many cases, using an original used part is more beneficial than installing a replacement with uncertain material parameters, especially in critical body areas such as the door and sill zones. For owners concerned about the vehicle's value, this can be a reasonable compromise between cost and quality.

To better understand the impact of original components on the future valuation of the car, it is worth checking out the guide: Original used parts vs. resale value – how not to lose money?.

Installation and practical application

The front right door seal in the Mercedes CLC-Class CL203 is intended for installation in the door perimeter zone, where it is responsible for the tightness of the connection with the body. When replacing, it is recommended to:

• thoroughly clean the door edge of dirt and residue from the old seal,
• check the condition of the sheet metal in the contact area (corrosion, deformations),
• gradually seat the seal on the edge without overstretching the material.

A correctly installed component contributes to stable door closing and reduces the risk of rattles and looseness during operation.

If you are planning a comprehensive repair or modernization of the door area in your Mercedes and need other elements from the same group, such as skins, reinforcements, or other door components, check the available parts in the Mercedes Doors and door panels category.