Mercedes W177 Crash Impact Sensor Front Door Left Right N/O/S Unit A1679050800

Mercedes W177 Crash Impact Sensor Front Door Left Right is a specialized component from the Airbag parts group, designed for operation in the front door zone on the driver's or passenger's side. It is responsible for precise collision detection in the side area, supporting the proper functioning of the passive safety system in your Mercedes.

Specifications and technical data

• SKU: A1679050800
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1679050800
• Substitutable numbers: A1679050800, A 167 905 08 00
• Location on the vehicle: Front, Left, Right
• Category: Airbag Parts

Purpose and function of the crash impact sensor

The presented crash impact sensor is designed for installation in the front doors on the left or right side of the vehicle body. Its task is to transmit information about a sudden impact in the side area to the airbag control unit, which enables the passenger protection system to react sufficiently quickly.

Thanks to its dedicated design for the specific Mercedes W177 generation, this component works with the vehicle's factory installation, maintaining the correct operating parameters and logic of the safety system.

Compatibility and integration with the airbag system

The sensor belongs to the Airbag parts group, which means it is an integral component of the system responsible for protecting the driver and passengers. Proper placement on the vehicle (front, left or right side) ensures:

• correct detection of overloads in the door zone,
• consistency with the factory airbag control unit algorithm,
• preservation of the original operating characteristics of the safety system.

As a component dedicated to Mercedes, the sensor is structurally matched to the vehicle's electrical and mechanical architecture, which facilitates installation and reduces the risk of installation errors.

Characteristics of the used component

The offered crash impact sensor is a used part, sourced from dismantling, which allows for optimizing repair costs while maintaining the manufacturer's original specifications. This type of solution is particularly beneficial in the case of electronic safety system components, where structural compatibility and correct cooperation with the existing installation are crucial.

Choosing an original, used component for the Mercedes W177 allows you to maintain consistency with the factory airbag system, without the need for adaptation or modification of wiring harnesses.

Practical application and installation recommendations

The front door crash impact sensor is primarily used for:

• post-accident repairs in the side zone,
• clearing airbag system errors related to door sensors,
• comprehensive replacement of safety components after system deployment.

Due to its importance for safety, installation should be entrusted to a specialized service center that will verify the correctness of the installation, read any potential errors, and perform a system operation test.

Repair cost optimization and additional information

Using used, original components in safety systems allows for significantly lower service costs while maintaining high quality and compliance with factory specifications. If you want to better understand how the choice of parts affects the repair budget, it is worth reading our guide: Refurbished or used original – which part to choose for repairs?.

If you are interested in a broader context of optimizing vehicle operating costs using parts from dismantling, including popular engine units, the following article will be helpful: Volkswagen 1.9 TDI vs 1.4 TSI – evolution of VW engines and repair costs, which shows a practical approach to repairs using used components.

If you are planning a comprehensive repair or upgrade of the passive safety zone in your Mercedes and need other elements from the same group, such as crash sensors, control modules, or system actuators, check out the available parts in the Mercedes Airbag parts category.