Seat Air Module Mercedes W213 C238 C257 Side Front Right O/S A2138607600

Seat Air Module Mercedes W213 C238 C257 Side Front Right O/S is an original safety component designed for installation in the front right seat of Mercedes vehicles of this generation. The airbag is responsible for protecting the passenger in the side and torso area, working in conjunction with the factory SRS system to ensure the consistent operation of all passive safety systems.

Specifications and technical data

• SKU: A2138607600
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2138607600
• Substitutable numbers: A2138607600, A 213 860 76 00
• Location on the vehicle: Front, Right
• Category: Additional Seat Parts

Purpose and function in the safety system

The described airbag is mounted within the seat structure on the passenger side at the front, on the right side of the vehicle. Its task is to inflate rapidly in the event of a side collision to limit the G-forces acting on the body of the person sitting in the seat and to reduce the risk of contact with interior elements.

The component works with collision sensors and the airbag system control unit, ensuring that activation occurs only under conditions specified by the manufacturer. Using an original seat airbag allows for maintaining the predictable performance characteristics of the entire SRS system.

Compatibility and fitment for Mercedes W213 C238 C257

The Seat Air Module Mercedes W213 C238 C257 Side Front Right O/S has been designed specifically for the seat architecture of the Mercedes C-Class and E-Class generations. The shape, mounting points, and wiring harness routing are adapted to the factory seat construction, which facilitates installation and reduces the need for upholstery modifications.

By maintaining the original geometry of the component, it is possible to correctly position the airbag relative to the protected zone, which is crucial for effectiveness when the system is triggered. Using a part from the same model family minimizes the risk of communication issues with the vehicle's electronics.

Characteristics of the used component

The offered airbag comes from the Other seat parts category and is a used component, meaning it was previously in service in a vehicle. Such components are frequently chosen for post-accident repairs when the priority is to maintain the original seat construction while optimizing service costs.

Before installation, it is recommended to verify the electrical wiring, connectors, and check for errors in the airbag control unit to ensure that the newly installed component is correctly recognized by the system and does not trigger warning messages on the instrument cluster.

Installation and maintenance tips

When installing the airbag in the front right seat, it is essential to strictly follow safety procedures: disconnect the vehicle's power supply, wait the recommended time before working on SRS connectors, and adhere to the manufacturer's service instructions. Proper positioning of the airbag under the upholstery and correct fastening of all mounts directly affect its inflation pattern.

After installation, it is advisable to perform a computer diagnostic of the SRS system to confirm the absence of active errors and proper communication with the newly installed component. This approach increases confidence that the passive safety system will function according to design specifications.

If you are planning a comprehensive repair or upgrade of the seating area in your Mercedes and need other components from the same group, such as rails, adjustment mechanisms, or additional seat modules, check the available parts in the Other Mercedes seat parts category.

For drivers interested in a broader context of selecting used components for drivetrains and related sensors, a guide describing how to assess the condition of second-hand parts, recognize typical signs of wear, and avoid costly mistakes may be useful – details can be found in the article Second-hand differential – what you need to know about used differentials, sensors, and drivetrain systems.

If you are interested in a wider perspective on technical solutions used in various model classes of this brand, including the evolution of comfort and safety features, it is worth reading the material dedicated to the history of flagship sedans – you can find it in the article Evolution of the Mercedes S-Class: from W140 to W222 – innovations, model differences, and Mercedes auto parts over the years.