Mercedes W639 Vito Viano Steering Wheel Airbag Driver Air Bag A6398600400

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W639 Vito Viano Steering Wheel Airbag Driver Air Bag is an original safety system component designed for installation in the steering wheel of Mercedes vehicles. Located in the front part of the cabin, the airbag works with the vehicle's factory electronics, ensuring proper driver protection while maintaining consistency with the dashboard design.

Specifications and technical data

• SKU: A6398600400-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6398600400
• Substitutable numbers: A6398600400, A 639 860 04 00, EM
• Location on the vehicle: Front
• Color: Black
• Category: Dashboard Panels

Purpose and function in the vehicle

The presented airbag is a component mounted in the central part of the steering wheel, in the frontal zone of the vehicle. As part of the passive safety system, it is responsible for rapid inflation and cushioning the driver's impact during a collision, working in conjunction with other components installed within the Dashboard area. Thanks to its fitment for the specific Mercedes W639 generation, the correct mounting points and geometry relative to the steering wheel and steering column are maintained.

Construction, color scheme, and interior integration

The airbag has been designed for a visually cohesive connection with the factory cockpit finish. The black color of the cover allows for aesthetic matching with most interior configurations used in W639 models, without the need for additional modifications to surrounding elements. The housing construction is intended for installation in the front zone of the vehicle, maintaining adequate working space for the inflation module.

Condition, origin, and technical aspects

The item comes from a used vehicle, which allows for maintaining the factory operating characteristics and compatibility with the original Mercedes safety system. Using an original steering wheel airbag reduces the risk of fitment issues and minimizes the need for interference with the dashboard structure or electrical wiring. The product has an assigned OEM part number and corresponding interchangeable numbers, which facilitates verification of compatibility with a specific vehicle equipment version.

Benefits of using an original steering wheel airbag

Using a steering wheel airbag dedicated to the Mercedes W639 ensures:

• maintenance of factory mounting geometry within the steering wheel and column,
• visual consistency with the dashboard and other cockpit elements,
• proper cooperation with the existing airbag control system,
• reduction of the risk of SRS system errors resulting from improper part selection.

For users looking for a solution as close to factory-standard as possible, a used steering wheel airbag represents a reasonable compromise between cost and maintaining the vehicle's original specifications.

Integration with other dashboard elements

When working on the safety system, it is worth paying attention to the condition of other components installed in the cockpit area, such as control modules, covers, or dashboard support elements. If you are planning a comprehensive repair or upgrade of the cockpit zone in your Mercedes and need other elements from the same group, such as panels, air vents, or gauge housings, check the available parts in the Mercedes Dashboards category.

Additional information and selection of used parts

When selecting a used steering wheel airbag, it is crucial to compare part markings and vehicle equipment versions to ensure full compatibility with the existing SRS system. Proper identification of the OEM number and interchangeable numbers allows you to avoid problems with installation and communication with the vehicle's electronics. If you want to better understand how to effectively use aftermarket components when upgrading or repairing your car, it is worth reading the guide The best used parts for tuning your car, which discusses practical aspects of selecting and verifying used components.