Mercedes W204 W212 Blind Spot Radar Sensor Rear Left Right N/O/S A0009050210

Mercedes W204 W212 Blind Spot Radar Sensor Rear Left Right is a specialized component from the Electronic control modules and controllers group, designed to operate within the blind spot monitoring system in Mercedes vehicles. This radar module allows for the technical repair or restoration of the lane change assist system while maintaining the factory logic of the system's operation.

Specifications and technical data

• SKU: A0009050210
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0009050210
• Substitutable numbers: A0009050210, A 000 905 02 10, BG
• Location on the vehicle: Rear, Right, Left
• Category: ECUs & Computer Modules

Purpose and function of the radar sensor

The presented sensor is a component of the blind spot monitoring system, mounted in the rear part of the vehicle body on either the left or right side. It is responsible for detecting vehicles in adjacent lanes, which allows the system to warn the driver of a potential hazard during a lane change.

By operating in the radar band, the module ensures stable performance in various weather conditions, such as rain, fog, or dusk. Proper placement on the vehicle allows for coverage of the critical area behind the rear axle, minimizing the risk of "invisible" vehicles in the side mirrors.

Construction and integration with vehicle electronics

The sensor belongs to the Electronic control modules and controllers group, meaning it works with the vehicle's communication bus and other controllers responsible for driver assistance systems. The module processes the radar signal and transmits appropriately prepared data to the master control units, which generate warning signals in the cabin.

Placement in the rear of the vehicle, on both the left and right sides, requires precise installation and maintaining the correct position relative to the body. A properly installed sensor ensures the correct geometry of the radar beam, which translates into the reliability of vehicle detection in adjacent lanes.

Condition, selection, and service application

The offered item is in used condition, which allows for an economical repair of the blind spot monitoring system while maintaining the original Mercedes electronic architecture. This type of module is particularly useful in cases of damage resulting from rear-end collisions or corrosion of the mounts.

When selecting a radar sensor for a specific vehicle, it is recommended to verify compatibility by OEM number and vehicle equipment. In many cases, after installation, it is necessary to perform adaptation or calibration procedures using an appropriate diagnostic tester so that the system correctly recognizes the new module in the controller network.

Benefits of using an original Mercedes module

Using an original radar sensor in the blind spot system ensures:

• preservation of the factory operating characteristics of the lane change assist,
• proper cooperation with other controllers in the vehicle,
• consistency of communication within the Mercedes electronic network,
• possibility of diagnostics and software updates in accordance with service procedures.

For workshops specializing in the Mercedes brand, such a module is a practical service solution, allowing for the restoration of full functionality of driver assistance systems without the need for costly replacement of entire harnesses or additional components.

If you are planning a comprehensive repair or upgrade of the electronic assistance systems zone in your Mercedes and need other components from the same group, such as controllers, comfort modules, or ECU units, check the available parts in the Mercedes electronic control modules and controllers category.

Support in choosing a used module

When working with used electronic modules, it is crucial to properly match them based on equipment version and software compatibility. It is worth paying attention to the selection method by OEM number, system configuration in a specific model, and any requirements regarding programming after installation.

If you want to deepen your knowledge on the safe selection and installation of used controllers and sensors, practical tips can be found in the article: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?