Crash Sensor Mercedes C238 W177 W205 W247 Rear Acceleration Sensor A0009057600

Crash Sensor Mercedes C238 W177 W205 W247 Rear Acceleration Sensor is an original component from the Airbag parts group, designed for installation in the rear section of the vehicle. This specialized sensor is responsible for the precise measurement of body accelerations, which supports the proper operation of passive safety systems and electronic stability control systems.

Specifications and technical data

• SKU: A0009057600
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0009057600
• Substitutable numbers: A0009057600, A 000 905 76 00
• Location on the vehicle: Rear
• Category: Airbag Parts

Purpose and function of the acceleration sensor

The rear acceleration sensor in Mercedes C238, W177, W205, and W247 series models operates within the vehicle's safety system structure, working in conjunction with control modules responsible for, among other things, airbags and dynamic control systems. Positioned in the rear zone of the body, it records acceleration changes along the vehicle's axis, allowing controllers to quickly analyze road conditions and react appropriately in the event of a collision or sudden maneuvers.

Thanks to its factory design tailored to a specific body platform, the sensor ensures proper operating parameters, stable mounting, and compatibility with the original electrical harness. This is crucial when replacing safety-related components, where compliance with factory specifications is essential.

Benefits of using an original Mercedes component

Using an original rear acceleration sensor in Mercedes vehicles provides a number of practical technical benefits:

• maintaining proper cooperation with the factory airbag system controller,
• appropriate measurement signal scaling consistent with the vehicle's software,
• secure fitment to mounting points in the rear body section,
• reduction of the risk of diagnostic errors related to parameter mismatch.

For the user, this means stable operation of safety systems and a lower risk of fault messages appearing in systems responsible for passenger protection. In the case of items from the Airbag parts group, choosing a component that is structurally compatible with the vehicle has a direct impact on the effectiveness of the entire system.

Vehicle placement and installation aspects

The presented sensor is intended for installation in the rear of the vehicle, which stems from its role in monitoring accelerations in this body zone. Such placement allows for a more accurate analysis of vehicle behavior during rear-end impacts and dynamic changes in rear axle load.

During replacement, it is important to maintain the correct mounting orientation and ensure solid attachment to the designated mounting point so that the sensor can correctly record the actual structural accelerations. In practice, this translates into:

• stable signal reading without mechanical interference,
• correct data interpretation by the safety system controller,
• preservation of the factory operating characteristics of the system.

Characteristics of the used product

The offered rear acceleration sensor is a used part, sourced from vehicle dismantling. Such components, when properly selected, represent a reasonable compromise between cost and maintaining the original technical specification. In the case of electronic sensors, it is particularly important that these are factory elements, designed specifically for a given Mercedes platform, which facilitates seamless integration with the existing installation.

Choosing a used, original acceleration sensor allows for cost reduction while maintaining a high level of safety and compatibility with the vehicle's airbag system. This solution is often preferred by workshops specializing in the Mercedes brand and users who care about the technical consistency of their vehicle.

Technical support and selection of appropriate parts

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 airbag-related harnesses, check the available parts in the Mercedes Airbag parts category.

When selecting used components for popular models, it is worth using reliable sources of knowledge. Practical tips on choosing original parts from dismantling can be found in the article The best used car parts – a guide to the most frequently chosen original parts for popular car makes and models, which will help you better plan your repair and make an informed decision about the scope of component replacement.