Parking Sensor Mercedes W203 R171 Rear Bumper PDC Sensor Obsidian - 197

Visual condition of the part 

The product shows signs of use visible in the photos. 

Parking Sensor Mercedes W203 R171 Rear Bumper PDC Sensor Obsidian - 197 is an original component from the Parking sensors category, designed for installation in the rear section of the vehicle body. Finished in Obsidian Black Metallic, it allows for an aesthetic and technically correct replacement of a damaged sensor without interfering with the bumper's styling.

Specifications and technical data

• SKU: A0015427418-OB
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0015427418
• Substitutable numbers: A0015427418, A 001 542 74 18, 0263003167, 0 263 003 167, A0045428718, A 004 542 87 18
• Location on the vehicle: Rear
• Color: Obsidian Black Metallic - 197
• Category: Parking Sensors

Purpose and function of the parking sensor

The presented PDC sensor is dedicated to the parking assistance system in Mercedes W203 and R171 models, where it is responsible for the precise detection of obstacles in the rear of the vehicle. Mounted in the rear bumper, it works with the factory electrical installation and the acoustic and/or visual warning system, providing the driver with clear information about the distance to obstacles.

By maintaining the original geometry and operating parameters, the sensor preserves the correct distance measurement characteristics, which translates into stable operation of the PDC system during typical maneuvers: parallel parking, reversing into a parking space, or maneuvering in tight spaces.

Obsidian Black Metallic color – visual matching

The sensor is finished in Obsidian Black Metallic – 197, which allows for a seamless match with a bumper painted in the same shade. In practice, this means reducing the need for additional painting and maintaining the factory look of the rear bodywork.

Such color matching is particularly important in vehicles where aesthetics and paint uniformity are a priority – replacing a damaged sensor with a component in the same color minimizes visual differences and helps maintain a consistent look for the entire bumper.

Vehicle placement and installation aspects

The sensor is designed for installation in the rear of the vehicle, in the factory bumper socket. The housing design is adapted to the standard mounts, which facilitates the seating of the component and correct positioning relative to the bumper surface. This makes it possible to maintain the proper operating angle and obstacle detection range.

In practice, installation involves:

• removing the damaged sensor from the socket in the bumper,
• connecting the electrical harness connector to the new component,
• seating the sensor in the factory opening while ensuring it clicks into place correctly.

This solution allows for efficient replacement in workshop or service conditions, without the need to modify the wiring or bumper elements.

Performance characteristics and practical application

As a component of the PDC system, the sensor is responsible for continuously measuring the distance from obstacles located behind the vehicle and transmitting the signal to the system controller. A properly functioning sensor contributes to:

• clear and repeatable acoustic signals while reversing,
• stable operation of the distance visualization (if the vehicle is equipped with it),
• reducing the risk of contact with obstacles during maneuvers in small spaces.

Replacing a damaged component with a functional PDC sensor is crucial for maintaining the functionality of the parking assistance system, especially in vehicles used in urban conditions, where frequent reversing is standard.

Used condition and selecting the right sensor

The offered sensor is in used condition, which in practice means it has been removed from a vehicle and verified for further use. This type of solution allows for an economical repair of the PDC system while maintaining the manufacturer's original specifications.

To select the correct component, it is worth paying attention to compatibility with the vehicle model, placement on the vehicle, and the finish color. Additionally, identification by OEM part number and interchangeable numbers, which are listed in the technical specifications section, is helpful.

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

If you want to better understand when choosing a used PDC sensor is justified and how to safely select electronics for your car, read our guide: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?