Audi A6 C6 Rear Door Inner Seal Gasket Rubber Left Right N/O/S 4F5833721E

Audi A6 C6 Rear Door Inner Seal Gasket Rubber Left Right is an original component from the Door seals group, designed for installation on the rear axle of the vehicle. It ensures a tight closure of the door panel, limits the ingress of water and noise into the cabin, and stabilizes door operation during daily use. Thanks to its factory profile and fitment for the specific Audi A6 C6 model, it provides a functional service solution for both sides – left and right.

Specifications and technical data

• SKU: 4F5833721E
• Mark: Audi
• Condition: Used
• OEM Part Number: 4F5833721E
• Substitutable numbers: 4F5833721E, 4F5 833 721 E, 4F5833721F, 4F5 833 721 F
• Location on the vehicle: Rear, Right, Left
• Part type: Door Seal
• Category: Door Seals

Purpose and function of the seal

The presented inner seal operates in the rear door area, where it is responsible for maintaining proper sealing between the door panel and the bodywork. This component:

• limits the penetration of water, moisture, and dust into the vehicle interior,
• reduces wind noise when driving at higher speeds,
• supports stable door guidance in the tracks,
• helps maintain acoustic comfort in the passenger cabin.

Thanks to its fitment for the specific Audi model, the seal maintains the correct geometry along the entire door perimeter, which translates into secure closing and predictable door behavior in daily use.

Compatibility and fitment for Audi A6 C6

Audi A6 C6 Rear Door Inner Seal Gasket Rubber Left Right has been designed for use on the rear axle of the vehicle, on both the driver and passenger sides. This means the component can be used for servicing both rear doors, which facilitates repair planning and reduces the number of different references needed in the workshop.

Its original Audi origin promotes the maintenance of factory assembly clearances and proper adhesion to the bodywork edges. In practice, this translates into:

• easier installation without the need for modifications,
• consistent appearance of the door line relative to other body components,
• stable sealing performance over a long period of operation.

Material and operational characteristics

The rubber construction of the seal has been selected for operation in variable weather conditions typical for passenger car use. The material is flexible, which allows for the compensation of minor door and body deformations, while being rigid enough to maintain the working profile along its entire length.

The properly selected hardness of the rubber compound promotes:

• maintaining a seal during repeated opening and closing of the doors,
• reducing squeaks and rattles in the contact zone between the door and the body,
• preserving acoustic comfort inside the vehicle.

The item comes from the used parts segment, which makes it an attractive service solution for users looking for a technically sound, yet economical component for their Audi.

Service application and installation

The rear door inner seal is suitable both for standard replacement of a worn-out element and for post-accident repairs, where it is necessary to restore sealing after bodywork and painting. Thanks to the factory profile, it is possible to fit it to the door edge without the need for additional forming.

In practice, installation comes down to:

• removing the old seal from the door edge,
• cleaning the contact surface of dirt and residues from the previous element,
• seating the new seal according to the factory layout.

This approach allows for restoring proper sealing of the rear part of the cabin without interfering with the body structure.

Offer expansion and additional materials

If you are planning a comprehensive repair or upgrade of the door zone in your Audi and need other elements from the same group, such as additional perimeter seals, inner rubber profiles, or edge sealing elements, check the available parts in the Audi door seals category.

For larger body and drivetrain service work, it is also worth ensuring proper diagnostics of mechanical components – practical tips on verifying components can be found in the article Buying a used engine: 5 things you must check before installation, which helps organize the process of checking the technical condition of key elements.