Mercedes S-Class W220 Front Right Door O/S Seal Gasket Weatherstrip A2217200278

Mercedes S-Class W220 Front Right Door O/S Seal Gasket Weatherstrip is a precisely fitted component from the Door Upholstery category, responsible for sealing and acoustic comfort in the driver or front passenger door area on the right side. Thanks to a design compliant with the manufacturer's standards, it ensures stable door leaf guidance, limits water ingress, and reduces wind noise, which translates into a more comfortable vehicle operation.

Specifications and technical data

• SKU: A2217200278
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2217200278
• Substitutable numbers: A2217200278, A 221 720 02 78, AS
• Location on the vehicle: Front, Right
• Category: Door Panels

Purpose and technical function

The presented seal is intended for installation on the front right door of the Mercedes S-Class W220 generation. The component operates in the critical area where the door meets the bodywork, where it is responsible for:

• sealing the door perimeter against the body,
• limiting air drafts at higher speeds,
• protecting the interior against water and moisture ingress,
• stabilizing the position of the door leaf in the closed position.

A properly selected seal in this area has a direct impact on the acoustic comfort of the cabin, the operation of the lock, and the durability of the upholstery and door trim elements.

Construction and body fitment

The front right door seal has been designed as a component that works with the factory door frame profile and body pillar of the Mercedes S-Class W220. The appropriately shaped working cross-section ensures:

• even pressure around the entire door perimeter,
• proper operation during repeated opening and closing,
• compatibility with factory mounting points.

Thanks to this, the installation proceeds in an orderly manner, without the need to interfere with the door or body structure, and the fitment with the body line remains consistent with the manufacturer's specifications.

Benefits of using an original seal

Using an original door seal in a Mercedes S-Class W220 allows for the restoration of factory sealing parameters and ride comfort. In practice, this means:

• reduction of wind noise in the area of the front right door,
• better protection against rainwater and road spray,
• limiting the risk of moisture in the door upholstery and sills,
• more predictable door closing and stable lock operation.

In combination with other door trim elements, the seal supports the maintenance of consistent interior quality, which is important both for utility and for the potential resale of the vehicle.

Product characteristics and service application

The element comes from a used vehicle, which makes it an attractive alternative to new components while maintaining compliance with factory specifications. This type of part is particularly useful in situations where:

• the existing seal is perished, cracked, or deformed,
• there is noticeable air noise in the area of the front right door,
• moisture appears in the lower part of the door upholstery after rainfall,
• repair is necessary after a collision in the area of the right side of the body.

Selecting an element compatible with the front right door construction in the Mercedes S-Class W220 allows for reducing service time and avoiding problems with matching the seal profile.

If you are planning a comprehensive repair or upgrade of the door area in your Mercedes and need other elements from the same group, such as door cards, panels, or trim strips, check the available parts in the Mercedes Door Upholstery category.

For users interested in a broader context of selecting original components according to manufacturer markings and practical tips regarding used parts, the article describing the specifics of five-cylinder units and the principles of working with identification numbers may be helpful – you can find it here: Audi five-cylinder engine – a legend from Quattro to RS3 and how to take care of it with original Audi parts.