Audi A4 B8 Avant Head Roof Curtain Air Module Left N/S 8K0880741D

Audi A4 B8 Avant Head Roof Curtain Air Module Left N/S is an original side safety system component designed for installation on the left side of the vehicle body. Designed by Audi, the curtain works with the factory vehicle electronics, ensuring proper deployment and inflation characteristics during a collision. This used OEM component allows for a technically correct repair of the airbag system while maintaining the factory passenger protection concept.

Specifications and technical data

• SKU: 8K0880741D
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0880741D
• Substitutable numbers: 8K0880741D, 8K0 880 741 D
• Location on the vehicle: Left
• Category: Other Interior Parts & Accessories

Purpose and function of the curtain airbag

The presented side curtain is a passive safety system component responsible for protecting the head and upper torso of the driver and passengers on the left side of the vehicle. Mounted in the upper part of the body along the roofline, it works with collision sensors and the airbag control unit to create a cohesive protection system during side impacts and selected rollover scenarios.

Thanks to its factory design and proper profile, the curtain adapts to the interior geometry of the Audi A4 B8, which translates into predictable force distribution during inflation. Original geometry and mounting method minimize the risk of malfunction compared to aftermarket replacements of uncertain origin.

Construction and mounting compatibility

The curtain has been designed as a component dedicated to a specific body generation, taking into account the shape of the pillars, headliner, and factory mounting points. The placement on the left side of the vehicle ensures compatibility with factory wiring routing, brackets, and interior trim.

Key mounting features include:

• dedicated placement of mounting points in the roof and pillar structure,
• adaptation for operation with the original airbag system control unit,
• retention of factory length and shape, facilitating correct positioning behind the headliner.

As a result, the curtain replacement process can be carried out in accordance with the manufacturer's service procedures, without the need for body structure modifications.

Characteristics of the used component

The offered curtain comes from dismantling and is a used component. This type of part, when properly verified and selected, allows for an economical repair of the safety system while maintaining the manufacturer's original specifications. In practice, this means the possibility of restoring the factory level of protection without having to resort to more expensive solutions from the authorized network.

In the case of airbag components, it is crucial that the installation is carried out in accordance with service documentation, observing safety rules and using appropriate tools. A properly selected left-side curtain ensures compatibility with the existing installation and control unit, which is important for both safety and the correct operation of the vehicle's diagnostic system.

Part selection by numbers and integration with the safety system

Side curtains in Audi are identified, among others, by the OEM part number and related interchangeable numbers, which enables precise selection of the component for a specific body version and model year. In practice, when selecting airbag components, it is recommended to verify compatibility by numbers and vehicle data to avoid problems with installation and communication with the control unit.

If you want to better understand the differences in the construction and characteristics of safety elements and chassis systems in sports versions of Audi, an article describing the comparison of RS versions with standard models may be helpful – you can find it here: Audi RS vs other models – what is hidden under the hood and chassis?.

Expanding repairs within the Audi safety system

If you are planning a comprehensive repair or upgrade of the cabin safety zone in your Audi and need other elements from the same group, such as additional side curtains, frontal airbags, or collision sensors, check the available parts in the Other Audi category.

This approach allows you to restore the integrity of the entire airbag system in one service stage, reduce vehicle downtime, and ensure compliance with the manufacturer's design assumptions.