Audi RS4 B8 Sunroof Sliding Roof Mechanism Assembly Roller Blind Grey 8K9877049A

Audi RS4 B8 Sunroof Sliding Roof Mechanism Assembly Roller Blind Grey is an original component from the Panoramic roofs, sunroofs and parts group, designed to restore the proper operation of the sliding roof in your RS4. This used OEM part ensures factory-fit, a consistent shade of grey for the interior, and stable operation of the guides and roller blind during daily use.

Specifications and technical data

• SKU: 8K9877049A
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K9877049A
• Substitutable numbers: 8K9877049A, 8K9 877 049 A
• Color: Grey
• Category: Sunroofs & Parts

Purpose and function in the vehicle

The described sunroof roller blind mechanism is the component responsible for the smooth opening and closing of the roof glass in the Audi RS4 B8 generation. The guide and roller blind cassette assembly works with the sliding roof structure, allowing for:

• control of the amount of light entering the cabin,
• reduction of interior heating on sunny days,
• improvement of acoustic comfort at higher speeds,
• preservation of the headliner aesthetics and roof line.

Choosing an original mechanism from the same model series minimizes the risk of fitment issues and improper roller blind operation after installation.

Construction and color

The mechanism is a complete roller blind assembly designed to work with the factory Audi sunroof. The grey color of the fabric and trim elements is consistent with the typical RS4 B8 interior palette, ensuring the roller blind blends harmoniously with the headliner, pillars, and other roof components.

The solution based on guides and a cassette allows for even rolling and unrolling of the blind, which reduces the risk of jamming and uneven material tension. The construction is prepared for operation in demanding temperature conditions typical for a vehicle roof.

Condition, fitment, and installation

The item comes from disassembly and is offered as a used OEM component, which in practice means factory geometry, correct mounting points, and compatibility with the original Audi sunroof system. This solution allows for:

• maintaining the factory line of the guides and cassette,
• limiting installation modifications,
• easier diagnostics of potential future faults.

Before installation, it is recommended to perform a standard check of the condition of the sliders, guides, and roller blind fabric, as well as to lubricate them properly in accordance with Audi service procedures, which extends the service life of the entire system.

Benefits of using the original roller blind mechanism

Using the original sunroof roller blind mechanism in an Audi RS4 B8 provides a number of practical benefits:

• Visual interior consistency – grey shade of the roller blind matched to the factory cabin color scheme.
• Compatibility with the roof structure – maintaining proper operation of the sunroof and roller blind without the need for adaptation.
• Stable long-term operation – design compliant with the vehicle manufacturer's requirements.
• Economical repair – a used OEM part allows for lower service costs while maintaining a high level of quality.

This solution is particularly recommended for repairs following guide seizure, damage to the roller blind fabric, or problems with closing the roof cover.

Technical support and additional information

If you are planning a comprehensive repair or upgrade of the roof area in your Audi and need other elements from the same group, such as sunroof guides, roller blind cassettes, or roof seals, check the available parts in the Panoramic roofs, sunroofs and parts Audi category.

For repairs after a collision or interference with the roof structure, it is worth familiarizing yourself with practical tips regarding the selection of body parts from disassembly – detailed procedures and examples can be found in the article Bodywork and chassis – post-accident repairs using parts from disassembly.