Mercedes CLC-Class CL203 Door Seal Sealing Frame Gasket Right O/S A2037273030

Mercedes CL203 Right Door Seal A2037273030 is an original seal from the Door Seals category, designed for installation on the right side of the body. This part was engineered by the manufacturer for a precise fit to the door structure, effectively reducing noise, moisture, and drafts inside the vehicle. Thanks to its factory geometry and appropriately selected rubber compound, it ensures stable adhesion to the car body and acoustic comfort during daily use.

Specifications and technical data

• SKU: A2037200478
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2037200478
• Substitutable numbers: A2037200478, A 203 720 04 78, A2037273030, A 203 727 30 30, EM
• Location on the vehicle: Right
• Category: Door Seals

Purpose and Fitment

This seal has been specifically prepared for Mercedes models with the CL203 coupé body type, taking into account the characteristic door line and frame shape. Its placement on the right side of the vehicle guarantees compatibility with factory mounting points, facilitating installation and minimizing the risk of leaks. The component's design is optimized to work with original hinges, locks, and windows, ensuring the door closes with the correct resistance, without the need for additional adjustments.

Construction and Technical Properties

This door seal belongs to the group of body elements responsible for cabin sealing and protection against external factors. The rubber profile has been shaped to:

• create a continuous barrier around the door perimeter,
• minimize the penetration of water and dust into the interior,
• reduce vibrations and creaks during driving,
• support the cabin's acoustic insulation.

The appropriately selected material hardness allows it to maintain flexibility with repeated opening and closing of the doors, while simultaneously ensuring stable adhesion to the car body edges. This allows the seal to work well with both the painted body surface and the door trim elements.

Condition, Origin, and Benefits of Choosing a Used Part

The offered seal is a used part, sourced from a dismantled vehicle. This type of part retains its factory geometry and original mounting points, which translates to predictable performance after installation. For door seals, this is particularly important, as even minor shape deviations can affect sealing and driving comfort.

Choosing an original, used door seal often provides a better fit than many aftermarket replacements, while offering a favorable price-to-quality ratio. If you want to learn more about how to make informed choices when selecting parts from the secondary market, it's worth reading our guide: Used Parts – Your Guide to the Best Deals in the Automotive Store.

Benefits of Installing the Right Door Seal for Mercedes CL203

Using the correct door seal on the right side of the body brings a range of practical benefits for everyday car use:

• Improved Acoustic Comfort – reduction of wind noise and ambient noise.
• Better Interior Protection – limited moisture ingress, which helps maintain upholstery and electrical components in good condition.
• Stable Door Closure – proper resistance when closing, without excessive slamming or looseness.
• Consistency with Factory Design – original fit to the body line and door frame.

Complementing the Door Seal Offer for Mercedes

If you also need other parts from the Door Seals category for your car of this brand, check out the Mercedes door seals available in our store to complete your body seal set.