Mercedes W205 Crash Impact Acceleration Sensor Set Left Right N/O/S A2139051300

Mercedes W205 Crash Impact Acceleration Sensor Set Left Right is an original component from the Cameras, monitoring and sensor sets group, designed for use in Mercedes vehicle safety systems. The set includes sensors for both the left and right sides, allowing for consistent, technically correct handling of the body zone responsible for impact detection and communication with vehicle electronics. This is a solution for users who expect precise operation and full integration with the factory installation.

Specifications and technical data

• SKU: A2139051300-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2139051300
• Substitutable numbers: A2139051300, A 213 905 13 00
• Location on the vehicle: Right, Left
• Category: Camera, Monitor & Sensor Kits

Purpose and function of the impact sensor set

The impact sensor set dedicated to the Mercedes W205 series is responsible for precise monitoring of acceleration forces at critical points of the body. These components work with the vehicle's control modules, enabling the safety systems to react correctly in collision situations. By using original components, compliance with factory operating parameters and the logic of the onboard electronics is maintained.

The vehicle placement includes both the right and left sides, which allows for the simultaneous replacement of both sensors and the restoration of uniform, predictable operation of the entire system. This approach reduces the risk of performance discrepancies between the sides of the vehicle and facilitates future diagnostics.

Construction, integration and compatibility with Mercedes installation

The impact sensors in this set are designed for the specific electrical and mechanical architecture of Mercedes models, which translates into a proper fit for mounts and connectors. Factory compatibility with the vehicle's installation allows for assembly without the need for wiring modifications or interference with the body structure. This is particularly important in the area of safety systems, where connection stability and correct communication with control modules are of key importance.

Properly selected mounting points and the manufacturer-intended placement on the vehicle promote repeatable measurement results and correct signal interpretation by the electronics. Using original solutions limits the risk of errors that may occur when using non-adapted replacements.

Performance characteristics and advantages of using original sensors

Choosing an original impact sensor set for the Mercedes W205 primarily means:

• maintaining consistency with factory software and safety system configuration,
• proper fit to the mounting points provided by the manufacturer,
• reducing the risk of diagnostic errors associated with incompatible components,
• easier verification of correct operation during service and inspections.

As an element from the Cameras, monitoring and sensor sets category, this set fits into the group of components responsible for collecting and transmitting data to the vehicle's controllers. The proper operation of these sensors has a direct impact on the performance of driving safety monitoring systems, which is why the use of original solutions is highly recommended.

Condition, assembly and service application

The offered impact sensor set is a used product, which in service practice often represents a reasonable compromise between cost and maintaining the manufacturer's original specification. These types of components are frequently chosen for post-accident repairs, replacing damaged elements after safety systems have been triggered, or when restoring full vehicle functionality after bodywork and paint repairs.

Due to the dedicated placement on the right and left sides, the set allows for comprehensive handling of a given body zone in a single service process. Simultaneous replacement of both sensors promotes uniform operating characteristics and facilitates subsequent computer diagnostics.

Expanding the sensor system in a Mercedes

If you are planning a comprehensive repair or upgrade of the body safety zone in your Mercedes and need other elements from the same group, such as additional sensors, monitoring modules, or components working with camera systems, check the available parts in the Cameras, monitoring and sensor sets Mercedes category.

For drivers and service centers considering the use of original used components instead of refurbished or non-factory solutions, our guide material discussing the cost-effectiveness of this approach may be helpful – more information can be found in the article Manual transmission failures – why an original used part is a more sensible choice than regeneration.