Mercedes W204 Parking Sensor PDC Distance Front Kosmos Black - 191 A2125420018

Visual condition of the part 

The product shows signs of use visible in the photos. 

Mercedes W204 Parking Sensor PDC Distance Front Kosmos Black is an original component from the Parking sensors category, designed for operation in the front zone of the vehicle. Thanks to its factory-fit compatibility with the Mercedes PDC system, it ensures precise obstacle detection and stable performance of the parking assistance system. The Kosmos Black Metallic paint finish allows for a seamless look with the bumper and maintains the vehicle's aesthetic appeal.

Specifications and technical data

• SKU: A2125420018-KB
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2125420018
• Substitutable numbers: A2125420018, A 212 542 00 18, 0 263 003 616, 0263003616
• Location on the vehicle: Front
• Color: Kosmos Black Metallic - 191
• Category: Parking Sensors

Purpose and function in the vehicle

The presented sensor is designed for installation in the front part of the body, where it is responsible for real-time distance measurement from obstacles during maneuvering. It integrates with the factory PDC system, transmitting signals to the control unit and the acoustic or visual system, which facilitates precise parking in tight spaces.

Thanks to its design compliant with Mercedes standards, the sensor works with the existing electrical wiring harness and factory mounting brackets, which reduces the need for modifications and speeds up service.

Color and visual fit

The Kosmos Black Metallic finish allows for an aesthetic integration of the sensor into the painted bumper. The carefully selected shade minimizes the visibility of the component, which is particularly important in premium class vehicles where stylistic consistency is key.

Such color matching reduces the need for additional painting and facilitates the quick replacement of a damaged sensor with a component of similar appearance.

Technical characteristics and installation

As a component from the Parking sensors category, the product is adapted to operate in demanding operating conditions – in areas exposed to moisture, road dirt, and variable temperatures. The sensor housing is prepared for installation in the factory bumper socket, which promotes stable seating and the correct measurement direction.

In service practice, the sensor can be used as a replacement for a component with the same part number or compatible interchangeable numbers, which facilitates selection based on the vehicle's technical documentation. Replacement usually involves removing the bumper or the appropriate section of the cover, unplugging the old component from the bracket and harness, and plugging in the new sensor.

Product condition and service application

The offered sensor is in used condition, making it an attractive solution for economic repairs when the priority is to maintain the functionality of the PDC system at controlled costs. Such components are often chosen for post-accident repairs, replacing a single damaged sensor, or during system diagnostics when a functional component is needed for comparison.

Using an original parking sensor in a used version allows for maintaining system consistency, avoiding compatibility issues that may occur with unverified aftermarket replacements.

System expansion and selection of other components

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

To better understand when choosing a used PDC sensor is justified and how to properly select it based on the OEM number and installation parameters, it is worth reading the guide: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?

Additional practical tips regarding the selection and installation of used electronics, including sensors, are also provided in the article Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?, which discusses compatibility issues and typical service scenarios.