Mercedes W213 Crash Impact Sensor Safety Unit Left Right N/O/S A2139051400

Mercedes W213 Crash Impact Sensor Safety Unit Left Right is a component from the Parking sensors group, designed to operate on either the left or right side of the vehicle. It is an original Mercedes component that supports precise monitoring of the area around the car and improves maneuvering safety, especially during parking and driving in heavy traffic.

Specifications and technical data

• SKU: A2139051400
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2139051400
• Substitutable numbers: A2139051400, A 213 905 14 00
• Location on the vehicle: Right, Left
• Category: Parking Sensors

Purpose and function of the sensor

The crash impact sensor in the Mercedes W213 model works with the parking assistance system, analyzing the distance from obstacles in the immediate vicinity of the vehicle. Its placement on the right or left side of the body allows for accurate detection of objects in critical zones, which reduces the risk of damage to bumpers, fenders, and suspension components.

Precise signal reading from the sensor enables the parking system controller to generate clear acoustic or visual alerts, which translates into more controlled maneuvers in tight parking spaces.

Construction and fitment for Mercedes W213

The sensor in question has been designed specifically for the Mercedes W213 platform, ensuring it maintains factory mounting points and compatibility with the vehicle's electrical installation. Proper fitment to the body on the left and right side minimizes the risk of looseness, incorrect seating, and interference in system operation.

As a component from the original production line, the sensor is optimized for cooperation with factory software and Mercedes electronic architecture, which promotes stable, repeatable operation of the parking assistance system.

Benefits of using an original sensor

Using an original crash impact sensor in a Mercedes W213 brings a number of practical advantages:

• maintaining full functionality of the parking system on the left and right side,
• consistency with the factory electrical installation and vehicle controllers,
• reduced risk of diagnostic errors associated with incompatible replacements,
• maintaining predictable operation of maneuvering assistants.

Thanks to this, the driver receives clear, repeatable warning signals, which facilitates precise parking and maneuvering in limited spaces.

Component condition and assembly aspects

The presented crash impact sensor is a used component, which allows for an economical repair of the parking assistance system while maintaining the manufacturer's original specifications. This type of component is particularly attractive in situations where it is necessary to replace several sensors at once, and the priority is to optimize service costs.

Placement on the vehicle on the right or left side facilitates the selection of the correct element when repairing a specific corner of the body. During installation, it is recommended to pay attention to correct seating in the socket and the tightness of the connection with bumper elements to ensure stable operation in changing weather conditions.

Support in selection and additional information

In the case of used electronics and sensors, it is crucial to correctly match the component to the specific vehicle configuration. To better understand the principles of selecting modules and sensors, it is worth reading the guide on second-hand electronics: Used automotive electronics – ECU modules and second-hand sensors.

If you are planning a comprehensive repair or upgrade of the parking zone in your Mercedes and need other elements from the same group, such as additional sensors, mounting elements, or compatible control modules, check the available parts in the Mercedes parking sensors category.