Mercedes ML W164 Rear Bumper PDC Wiring Parking Sensor Loom Harness A1644400937

Mercedes ML W164 Rear Bumper PDC Wiring Parking Sensor Loom Harness is an original electrical component designed to support the rear parking system in Mercedes ML-Class W164 series models. This specialized harness from the Wires, harnesses and connectors category ensures a proper connection between the PDC sensors and the control module, which translates into stable operation of the parking assistant. Thanks to its factory design, it is a solution perfectly matched to the vehicle's electrical architecture.

Specifications and technical data

• SKU: A1644400937
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1644400937
• Substitutable numbers: A1644400937, A 164 440 09 37
• Location on the vehicle: Rear
• Category: Wiring Harnesses, Cables & Connectors

Purpose and function in the vehicle

The presented harness is dedicated to installation in the rear part of the body, in the bumper area where the PDC parking sensors operate. It is responsible for:

• transmitting signals from the sensors to the control system,
• stable power supply for system components,
• maintaining correct communication within the factory Mercedes installation.

As a result, the parking assistance system can operate in a predictable and repeatable manner, without the interference typical of non-factory solutions. A correctly selected PDC harness reduces the risk of system errors, false alarms, and diagnostic issues.

Construction and fitment for Mercedes ML W164

The harness has been designed for specific cable routing in the Mercedes ML W164, taking into account factory mounting points and the geometry of the rear bodywork. Properly selected cable lengths and connector placement facilitate installation and subsequent maintenance.

A solution of this type allows for maintaining the original installation path, which is important both from the point of view of safety and subsequent computer diagnostics. Factory connectors and wiring configuration promote seamless integration with the existing PDC system, without the need for installation modifications.

Application in service and diagnostics

The rear parking sensor wiring harness will be particularly useful in situations where:

• the installation has been damaged as a result of a rear-end collision,
• intermittent PDC errors occur related to circuit breaks or wire corrosion,
• it is necessary to replace a section of the installation with a component compliant with factory specifications.

Using an original harness facilitates diagnostic work – electrical parameters are consistent with the manufacturer's specifications, which allows for reliable readings from a tester and faster localization of potential faults in the parking system.

Product characteristics and condition

The offered harness belongs to the Wires, harnesses and connectors group and comes from dismantling, which allows for maintaining compatibility with the original Mercedes electrical architecture. This type of component is a good choice for repairs where maintaining the factory cable routing and compatibility with existing sensors and modules is crucial.

The harness is intended for installation in the rear zone of the vehicle, so when replacing it, it is worth paying attention to correct cable routing, protection against moisture, and proper seating of the connectors in the parking sensor sockets. Careful installation translates directly into the reliability of the entire PDC system.

Expanding the installation in a Mercedes – related components

If you are planning a comprehensive repair or upgrade of the rear electrical installation in your Mercedes and need other elements from the same group, such as additional harnesses, signal cables, or body system connectors, check the available parts in the Mercedes wires, harnesses and connectors category.

For a comparison of solutions used in different brands and a better understanding of how manufacturers design installation and assistance system components, the material describing the differences in premium-class components may be helpful – you can find it in the article BMW M Performance: how do BMW M components differ from standard ones?.