Mercedes W204 Parking Sensor PDC Sensor Front Steppe Brown Metallic - 490

Mercedes W204 Parking Sensor PDC Sensor Front Steppe Brown Metallic is a precision component from the Parking sensors category, designed for operation in the front zone of the vehicle. Thanks to its factory fitment for the Mercedes PDC system and elegant finish in Steppe Brown Metallic - 490, it allows for a technically correct repair of the parking assistance system while maintaining consistent body aesthetics.

Specifications and technical data

• SKU: A2125420018-STE
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2125420018
• Substitutable numbers: A2125420018, A 212 542 00 18
• Location on the vehicle: Front
• Color: Steppe Brown Metallic - 490
• Category: Parking Sensors

Purpose and function in the vehicle

The presented sensor is a PDC system component mounted in the front part of the body. It is responsible for detecting obstacles in the bumper area, transmitting a signal to the parking assistant control unit. A properly functioning sensor in this location:

• increases safety when maneuvering in tight spaces,
• facilitates precise parking near obstacles,
• reduces the risk of damage to the bumper and body components,
• ensures proper cooperation with the factory acoustic and visual warning system.

Its placement at the front of the vehicle means the sensor operates in demanding conditions – it is exposed to dirt, moisture, and mechanical damage, which is why its efficiency has a direct impact on daily driving comfort.

Color and visual fitment

The finish in the Steppe Brown Metallic - 490 shade allows for aesthetic integration of the sensor into the painted surface of the bumper. For Mercedes owners, it is important not only that the PDC system works, but also that the consistent body line is maintained – the correct color reduces the need for additional painting and minimizes shade differences.

Choosing a sensor in this specific color is particularly important for post-collision repairs or when replacing a single component, where maintaining the factory look of the vehicle's front is a priority.

Characteristics and advantages of use

The parking sensor designed for the Mercedes W204 has been engineered as a component compatible with the vehicle's factory installation. The appropriate housing geometry and connector allow for mounting in the original bumper socket and connection to the existing wiring harness without any modifications.

Key benefits of using this component:

• preservation of the factory functionality of the PDC system in the front zone of the vehicle,
• compatibility with the Mercedes electronic system,
• color consistency with the body paint in the Steppe Brown Metallic shade,
• possibility to restore the correct operation of the parking assistant after the previous sensor has been damaged.

Condition and service application

The component comes from the secondary market, which makes it an attractive solution for economic repairs, where the priority is combining functionality with reasonable service costs. Such sensors are frequently used in professional workshops dealing with post-accident repairs and in services specializing in automotive electronics.

Before installation, standard service procedures are recommended: inspection of the wiring, verification of the bumper socket, and checking the correct operation of the PDC system after connecting the sensor, using an appropriate diagnostic tester.

System expansion and selection of other components

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

When choosing a used PDC sensor, it is worth paying attention to compatibility with the vehicle's installation and the quality of the component itself. Practical tips on selecting and using electronics from the secondary market can be found in the article: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?