Mercedes-Benz S-Class W220 Cable Loom Wiring Parking Sensors Rear Bumper

Mercedes-Benz S-Class W220 Cable Loom Wiring Parking Sensors Rear Bumper is an original electrical installation component designed to support the PDC system in the rear of the vehicle body. Thanks to its factory-fit for the S-Class W220, the wiring harness ensures proper connection of the parking sensors to the vehicle's electrical system and stable operation of the parking assist system. It is a practical solution for post-collision repairs, bumper replacement, or damage to the original installation.

Specifications and technical data

• SKU: W220 Wiring Loom Set PDC Rear
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: W220 Wiring Loom Set PDC Rear
• Substitutable numbers: W220 Wiring Loom Set PDC Rear
• Location on the vehicle: Rear
• Category: Wiring Harnesses, Cables & Connectors

Purpose and function in the vehicle

The presented wiring harness belongs to the Wires, harnesses, and connectors category and is specifically designed for the rear of the W220 S-Class sedan. It is responsible for transmitting signals between the parking sensors in the rear bumper and the rest of the vehicle's electrical system, which enables the PDC system to function efficiently while reversing.

Its placement in the rear area of the vehicle allows for direct routing of the wires along the bumper and body structure, utilizing factory mounting points. This ensures the correct routing of the wires and limits the risk of abrasion or mechanical damage.

Benefits of using an original wiring harness

Using a factory wiring harness in the S-Class W220 PDC system provides a number of practical assembly and operational benefits:

• wire and connector geometry consistent with the Mercedes S-Class W220 electrical system design,
• factory-prepared connection points for parking sensors in the rear bumper,
• easier diagnostics of potential PDC system faults due to the preservation of the original wiring layout,
• possibility to restore the factory configuration after bodywork repairs or bumper replacement.

As a used component, the wiring harness allows for an economical repair of the PDC system while maintaining the original Mercedes electrical architecture, which is essential for both the proper operation of the system and future service maintenance.

Application in service and PDC repairs

This component is particularly useful in situations where the electrical installation in the rear of the vehicle has been damaged – for example, as a result of a rear bumper impact or improper sensor removal. Using a complete wiring harness often allows you to avoid time-consuming repairs of individual wires and connectors by replacing them with one cohesive component.

In service practice, such a wiring harness is used, among other things, for:

• restoring the PDC installation after a rear-end collision,
• replacing the bumper with another element prepared for parking sensors,
• resolving issues with sensor signal interruptions caused by wire damage.

Integration with other Mercedes installation components

As a Mercedes brand product, the wiring harness is designed for full compatibility with other electrical components of the S-Class W220. This includes both the PDC system control modules and other parts of the installation in the rear of the vehicle. This makes it possible to maintain the consistency of the entire electrical system without the need for modifications.

If you are planning a comprehensive repair or upgrade of the rear electrical installation in your Mercedes and need other components from the same group, such as additional harnesses, wire sections, or installation connectors, check the available parts in the Mercedes Wires, harnesses, and connectors category.

Additional technical support

When working with electrical installations and maneuvering assist systems, it is worth paying attention to the general condition of the steering system and related components. For a better understanding of the relationships between individual sub-assemblies and symptoms of faults, you can use the advice contained in the article Steering system and power steering – how it works and what breaks?, which discusses practical aspects of diagnostics and operation.