Seat Air Module Mercedes W204 W207 Coupe Front Right O/S Side A2078600402

Seat Air Module Mercedes W204 W207 Coupe Front Right O/S Side is an original safety component designed for installation in the front right seat of this model. This used seat airbag allows for a technically correct SRS system repair after a collision, maintaining factory mounting geometry and full compatibility with the vehicle's electrical installation. It is an ideal solution for users who want to professionally restore the full functionality of the safety system in their Mercedes without compromising on fitment or performance.

Specifications and technical data

• SKU: A2078600402
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2078600402
• Substitutable numbers: A2078600402, A 207 860 04 02
• Location on the vehicle: Front, Right
• Category: Additional Seat Parts

Purpose and function of the seat airbag

The presented airbag is an SRS system component responsible for protecting the passenger occupying the front right seat. In the event of a collision, it works in conjunction with other safety system components, limiting the forces acting on the body and reducing the risk of injuries to the torso and pelvis. The use of a dedicated seat module ensures proper deployment zone positioning and correct integration with the seat structure.

Compatibility with Mercedes W204 Coupe

The airbag has been designed specifically for the W204 series coupe body, ensuring it maintains the correct dimensions, shape, and mounting points relative to the seat structure. This means:

• secure fitment in the seat frame without the need for modifications,
• compatibility with the factory wiring harness and SRS system connectors,
• proper cooperation with the sensors and airbag control unit in this model.

As a result, the installation can be carried out in an orderly manner, adhering to the service standards prescribed for Mercedes vehicles.

Technical characteristics and installation

The airbag is intended for installation in the passenger seat area in the front part of the cabin. The component's design is adapted to operate in the limited space inside the seat, taking into account cable routing, mounting points, and controlled deployment zones. This used component allows for an economical yet technically correct restoration of the passive safety system.

Due to the nature of SRS components, it is recommended that installation be performed by a qualified service center, following procedures regarding power disconnection, control unit diagnostics, and clearing error codes after replacement. A correctly installed airbag restores the integrity of the safety system within the passenger seat.

Use in post-collision repairs

The seat airbag is frequently replaced after the SRS system has been triggered due to a collision. Using an original component dedicated to the Mercedes W204 Coupe allows you to:

• maintain the structural integrity of the seat and upholstery,
• ensure proper cooperation with the factory airbag control unit,
• minimize the risk of system errors resulting from incorrect part selection.

For workshops specializing in post-collision repairs, this is a practical solution that facilitates maintaining the manufacturer's standards regarding passive safety.

Expanding the seating system in your Mercedes

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 out the available parts in the Other Mercedes seat parts category.

Drivetrain safety and SRS components

During post-collision repairs, it is worth paying attention not only to interior elements and SRS systems but also to the condition of the drivetrain. Proper diagnostics of the drive axle, differential, and related sensors can help avoid later, costly failures. Practical tips on evaluating such components can be found in the article: Second-hand differential – what you need to know about used differentials, sensors, and drivetrain systems.