Mercedes CLC-Class CL203 Front Right O/S Door Weatherstrip Seal A2037202078

Mercedes CLC-Class CL203 Right Door Seal is a precisely fitted body part designed for installation on the front right door of this model. It ensures a seal between the door and the body, reducing noise, vibrations, and moisture ingress into the vehicle's interior. This is a practical solution for users who want to restore proper door closure and acoustic comfort in their Mercedes.

Specifications and technical data

• SKU: A2037202078
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2037202078
• Substitutable numbers: A2037202078, A 203 720 20 78, EM
• Location on the vehicle: Front, Right
• Category: Door Seals

Purpose and Function of the Seal

The door seal from the Door Seals category is specifically designed for the Mercedes CLC-Class CL203 model, taking into account the body's geometry and the characteristic door line. It is mounted on the front right side of the vehicle, where it is responsible for:

• preventing water and moisture from entering the cabin,
• reducing wind noise at higher speeds,
• stabilizing the door in the closed position through appropriate pressure,
• protecting the door edges and frame from excessive wear.

Thanks to its proper profile, the seal works with the factory lock and hinges, promoting even pressure around the entire door perimeter.

Benefits of Using an Original Mercedes Seal

Using a part designed for a specific Mercedes model allows you to maintain factory-level sealing and driving comfort parameters. Key benefits include:

• Precise Fit to the Body – no need for cutting or forcing adjustments, which simplifies installation and reduces the risk of leaks.
• Consistency with the door's styling line – the seal conforms to the original edge contour, without interfering with window or lock operation.
• Ability to restore proper door closure – especially important when experiencing rattling, looseness, or noticeable drafts.

Choosing this solution is beneficial for both post-accident repairs and gradual body renovations on older CLC-Class models.

Installation Characteristics and Application

The seal is designed for installation on the front right door, which is important when planning service work on one side of the vehicle. In practice, it is most often used in situations such as:

• replacement after mechanical damage to the door or pillar,
• repairing leaks that manifest as water in the sills or on the upholstery,
• eliminating wind noise after a window replacement or door adjustment.

Due to its design tailored to the specific model, the seal works with factory mounting elements and does not require modification of the body structure.

Item Condition and Service Application

The offered seal is a used part, making it an attractive cost-effective alternative to new parts, while maintaining original geometry and intended use. Such components are frequently used in professional workshops specializing in Mercedes body repairs, especially where compliance with factory specifications and the possibility of economical repairs are important.

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

For those interested in the broader context of premium car ownership and maintenance costs, analyses of powertrains may be useful – for example, a comparison of popular BMW diesel engines can be found in the article BMW N47 vs M57 / M57N / M57N2 – Ranking of Legendary Diesels, which discusses performance, reliability, and the impact of the used market on repair cost-effectiveness.