Audi A4 B7 Cabriolet Rear Door Window Seal Gasket Strip Right O/S 8H0839478C

Audi A4 B7 Cabriolet Rear Door Window Seal Gasket Strip Right O/S is an original body component from the Window seals and strips category, designed for the right rear door section in the Cabriolet version. It ensures a tight window guide, reduces wind noise, and helps maintain a stable window position in the channel, which translates into a more comfortable vehicle operation.

Specifications and technical data

• SKU: 8H0839478C
• Mark: Audi
• Condition: Used
• OEM Part Number: 8H0839478C
• Substitutable numbers: 8H0839478C, 8H0 839 478 C
• Location on the vehicle: Rear, Right
• Part type: Window Seal
• Category: Window Seals, Gaskets & Trims

Purpose and function of the component

The rear door window sealing strip on the right side of the Audi A4 B7 Cabriolet is responsible for:

• sealing the contact point between the window and the door frame in the rear part of the body,
• reducing the ingress of water and contaminants into the door interior,
• limiting wind noise at higher speeds,
• stabilizing the operation of the window lifting and lowering mechanism.

Thanks to its fitment for the specific Cabriolet body model, the strip works with the characteristic frameless door construction, which is crucial for maintaining correct window geometry and acoustic comfort.

Construction and fitment for Audi A4 B7 Cabriolet

The component has been designed specifically for the rear, right door zone in the Audi A4 B7 generation in the convertible version. This means:

• a profile matched to the shape of the window and the Cabriolet body line,
• factory-provided mounting points in the door structure,
• compatibility with the original window lifting mechanism.

Such fitment reduces the risk of leaks after installation and facilitates service work – the strip aligns with the factory window edge path without the need for additional modifications.

Performance characteristics and benefits of installation

Using the correct sealing strip in the rear door section on the right side affects several important aspects of vehicle operation:

• improvement of acoustic comfort inside the cabin when driving with windows closed,
• better protection of the door interior against moisture, which promotes the durability of mechanisms,
• smoother window operation thanks to proper guidance in the seal,
• maintaining a consistent appearance of the window edge and the side body line.

For workshops and private users, this means stable, predictable window operation and a reduction in the risk of secondary faults resulting from leaks or improper window guidance.

Condition, origin, and service application

The offered window seal strip comes from an Audi vehicle and is a second-hand component in used condition. It is a practical solution for accident repairs, replacing worn-out seals, or restoring full door functionality in vehicles used on a daily basis.

To facilitate part selection based on service documentation, identification via OEM part number and available interchangeable numbers is provided, which helps verify compatibility with a specific equipment version and vehicle model year.

Mounting fitment and vehicle zone

The strip is intended for installation in the rear, right part of the body, within the door and side window area. Proper placement on the vehicle is crucial when ordering – the component is dedicated exclusively to one side and one position on the vehicle, which eliminates the possibility of swapping sides during installation.

If you are planning a comprehensive repair or upgrade of the side window and door zone in your Audi and need other components from the same group, such as additional seals, trim strips, or window guides, check out the available parts in the Audi window seals and strips category.

When selecting used body components and seals, it is worth following proven procedures for verifying compatibility and technical condition – you can find practical tips in the guide Safe purchase of used car parts online – a step-by-step guide, which discusses, among other things, selection by catalog numbers and the specifics of individual part groups.