Mercedes ML W166 Air Module Steering Wheel SRS Driver's Bag Unit A1668600002

Visual condition of the part 

The product shows signs of use visible in the photos. 

Mercedes ML W166 Air Module Steering Wheel SRS Driver's Bag Unit is an original safety component designed for installation in the central part of the steering wheel, in the front zone of the vehicle. Designed by Mercedes, it ensures proper integration with the factory SRS system and vehicle electronics. This is a solution for users who want to restore the full functionality of the safety system in a controlled manner after a collision or steering wheel replacement.

Specifications and technical data

• SKU: A1668600002
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1668600002
• Substitutable numbers: A1668600002, A 166 860 00 02
• Location on the vehicle: Front
• Category: Other Interior Parts & Accessories

Purpose and function in the vehicle

The driver's airbag in the Mercedes ML W166 model is responsible for protecting the driver in the event of a frontal collision. The component is mounted in the front of the vehicle zone, directly in the steering wheel, where it works with collision sensors and the airbag system controller. Thanks to the factory design, the correct deployment geometry of the airbag relative to the driver's chest and head is maintained.

Compatibility and integration with the SRS system

The offered airbag has been developed specifically for the safety architecture used in the Mercedes ML W166 generation. This means:

• maintaining the appropriate airbag inflation characteristics depending on the type of collision,
• proper cooperation with the factory SRS controller and collision sensors,
• fitment to the steering wheel design used in this model series.

As a result, after correct installation and the performance of necessary diagnostic procedures, it is possible to restore the full functionality of the passive safety system in accordance with the vehicle manufacturer's specifications.

Technical characteristics and installation

The driver's airbag is an integrated component, prepared for installation in the factory steering wheel. The design provides:

• dedicated mounting points to the steering wheel frame,
• electrical connectors adapted to the wiring harness in the Mercedes ML W166,
• a housing shaped to match the interior styling and steering wheel ergonomics.

Due to the nature of this safety component, installation by a specialized service center is recommended, using appropriate procedures for disconnecting power, diagnosing the SRS system, and clearing any errors in the controller.

Product condition and benefits of choosing an original part

The offered driver's airbag is an item from the used original parts group, which allows for combining controlled repair costs with the preservation of factory design and fitment. Compared to replacements, the original airbag ensures:

• consistency with factory safety system parameters,
• proper fitment to the steering wheel and interior trim elements,
• maintenance of the manufacturer-intended performance characteristics in an emergency situation.

This solution is particularly beneficial for post-accident repairs, where it is crucial to restore the original configuration of the passive safety system.

Expanding the safety system in your Mercedes

If you are planning a comprehensive repair or upgrade of the safety zone in your Mercedes and need other components from the same group, such as additional airbags, seat belt tensioners, or collision sensors, check the available parts in the Other Mercedes category.

Technical knowledge and project development

When planning broader modifications or repairs within high-class vehicles, it is worth considering the structural differences between individual model lines. For a comparison of solutions used in sports versions of other brands, you can refer to material describing the construction of powertrains, brakes, and chassis in high-performance cars – this is discussed in detail in the article Audi RS vs other models – what is hidden under the hood and chassis?, which allows for a better understanding of the philosophy of designing high-performance cars and its impact on the selection of spare parts.