Mercedes ML W166 GLE C292 Front Seat Left N/S Side Air Module SRS A1668600502

Mercedes ML W166 GLE C292 Front Seat Left N/S Side Air Module SRS is an original passive safety system component designed for installation in the front left seat. Thanks to its factory-fit design for the seat structure and integration with the SRS system, this airbag ensures proper cooperation with sensors and the control unit, which translates into stable operation of the vehicle's airbag system. This solution is dedicated to users who expect a technically correct repair of the safety system after a collision or seat replacement.

Specifications and technical data

• SKU: A1668600502
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1668600502
• Substitutable numbers: A1668600502, A 166 860 05 02
• Location on the vehicle: Front, Left
• Category: Other Interior Parts & Accessories

Purpose and function in the SRS system

The described seat airbag is a component of the SRS system responsible for protecting the driver in the hip and torso area during a side impact or specific collision scenarios. It is mounted within the seat structure on the front left side, which allows for precise deployment direction relative to the driver's silhouette.

Thanks to a design compliant with the vehicle manufacturer's requirements, the airbag works with the factory SRS control unit, acceleration sensors, and seat belt tensioners, creating a cohesive safety system. Maintaining the correct mounting geometry and original inflation characteristics is crucial for the predictable operation of the entire system.

Compatibility with Mercedes models

The airbag has been designed for the front left seat in ML W166 and GLE C292 series vehicles. This means it is compatible with:

• the seat frame construction used in these generations,
• factory mounting points and wiring harness routing,
• electrical parameters required by the SRS control unit in these models.

Such compatibility reduces the risk of installation errors, facilitates servicing, and allows for consistency with the factory safety equipment configuration in Mercedes vehicles.

Installation and operational aspects

The front left seat airbag is intended for installation in the front zone, on the driver's side. In practice, this means it is necessary to remove the seat upholstery and correctly route the electrical harness in accordance with factory clips and retainers. Maintaining the correct position of the module relative to the seat frame is essential for the proper deployment direction.

During installation, one must follow the vehicle manufacturer's service procedures, particularly those concerning disconnecting the power supply, handling SRS system connectors, and tightening torques for mounting elements. A correctly installed airbag minimizes the risk of errors in the control unit memory and ensures predictable operation in an emergency situation.

Benefits of using an original component

Using an original seat airbag in the SRS system allows for maintaining the consistency of safety parameters with the vehicle manufacturer's specifications. The most important advantages include:

• Factory fit for the seat – compatibility of shape and mounts with the seat structure in the ML W166 and GLE C292.
• Proper cooperation with SRS electronics – compatibility with the factory control unit and sensors.
• Simplified diagnostics – predictable behavior during service tests and error clearing.
• Consistency with other safety system components – seat belt tensioners, steering wheel airbag, and curtain airbags.

For users who prioritize a technically correct repair after a collision or seat replacement, choosing this solution allows for maintaining a high level of the vehicle's passive safety.

Application in a broader safety and tuning context

In high-performance vehicles, such as sports variants of popular models, a properly functioning SRS system is just as important as the braking system or suspension. In the context of comparing standard versions of cars with their sports variants, it is worth noting the differences in safety configuration, which you can read more about in the article Audi RS vs other models – what is hidden under the hood and chassis?.

Expanding the driver's seat area repair

If you are planning a comprehensive repair or upgrade of the driver's seat area in your Mercedes and need other elements from the same group, such as seat wiring harnesses, occupancy sensors, or additional SRS components, check out the available parts in the Other Mercedes category.

For drivers interested in a broader approach to selecting components from the secondary market, a practical guide to original used components, available in the article The best used car parts – a guide to the most frequently chosen original parts, may also be useful. It allows for a better understanding of what to look for when choosing used safety system components.