Mercedes CLC-Class CL203 Front Right O/S Door Weatherstrip Seal A2037271035

Mercedes CLC-Class CL203 Front Right O/S Door Weatherstrip Seal is a precisely fitted component from the Doors and door panels category, designed for installation on the front right door. It is responsible for the tightness of the door perimeter, noise reduction, and protecting the interior from water and contaminants, ensuring comfortable vehicle operation. This is a used, original component that allows you to restore proper door sealing without interfering with the body structure.

Specifications and technical data

• SKU: A2037271035
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2037271035
• Substitutable numbers: A2037271035, A 203 727 10 35, AS
• Location on the vehicle: Front, Right
• Category: Doors & Door Skins

Purpose and function of the door seal

The presented seal is designed for installation on the front right door of the Mercedes CLC-Class CL203 model. Its purpose is to:

• seal the contact point between the door and the bodywork along the entire perimeter,
• limit the ingress of water, dust, and dirt into the interior,
• reduce wind noise while driving,
• stabilize the door position relative to the body through proper pressure.

By maintaining the factory profile and geometry, the seal allows for the restoration of the original acoustic and performance parameters of the door area.

Benefits of using an original seal

Using an original door seal in a Mercedes CLC-Class CL203 provides a number of practical operational benefits:

• Factory fit – the correct shape and cross-section ensure even pressure along the entire length of the door edge.
• Stable door operation – a proper seal reduces play and minimizes unwanted vibrations of the door panel.
• Improved acoustic comfort – reduction of wind noise and whistling at higher speeds.
• Interior protection – a better barrier against moisture helps keep upholstery and electrical components in good condition.

This solution is particularly recommended when the existing seal is brittle, deformed, or mechanically damaged, which manifests as leaks and increased noise.

Installation characteristics

The seal is intended for installation in factory mounting points on the front right door. The design of the component allows for:

• seating in the original groove or on the edge of the door panel,
• maintaining the continuity of the sealing line along the entire perimeter,
• compatibility with existing hinges, locks, and windows without the need for modifications.

With proper installation, even pressure of the seal against the body frame is achieved, which translates into stable door operation and consistent closing.

Application in the body system

As an element from the Doors and door panels group, the seal works with the door panel, body frame, window, and hardware to form a complete passenger cabin protection system. Replacing a worn seal is an important step during bodywork and paint repairs, after collisions, or during long-term vehicle operation in varying weather conditions.

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 panels, reinforcements, or door frames, check out the available parts in the Mercedes Doors and door panels category.

Practical tips for the user

When selecting a door seal, it is worth paying attention to compatibility with the specific body version and the location on the vehicle. In case of doubts regarding installation or assessing the condition of existing body components, specialized guides and technical materials may be helpful. For users interested in the broader topic of selecting used components, it is worth reading the article How to buy a used car engine and not get scammed – a step-by-step guide, which discusses universal principles for assessing the condition of parts from the secondary market.