Mercedes-Benz M-Class ML W164 Parktronic Unit Module Bracket Mount A1645450847

Mercedes-Benz M-Class ML W164 Parktronic Unit Module Bracket Mount is a component from the Electronic control modules and controllers category, designed for the stable mounting of the parking assist controller in the rear section of the vehicle. A properly selected bracket ensures the correct positioning of the module, which translates into reliable operation of the parking sensor system and reduces the risk of malfunctions resulting from vibrations or improper installation.

Specifications and technical data

• SKU: A1645450847
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1645450847
• Substitutable numbers: A1645450847, A 164 545 08 47, KZ
• Location on the vehicle: Rear
• Category: ECUs & Computer Modules

Purpose and function in the vehicle

The presented bracket is dedicated to installation in the rear part of the body, in the area where the Parktronic system controller is installed in the Mercedes M-Class W164 generation. Its task is to precisely maintain the control module in the position designed by the manufacturer, while maintaining appropriate distances from electrical harnesses, body elements, and the bumper.

Stable mounting of the controller is important not only mechanically but also operationally – it reduces the transmission of vibrations, minimizes the risk of wire and connector abrasion, and helps maintain the correct operation of the parking assist system under typical road conditions.

Benefits of using the original bracket

In the case of components mounting onboard electronics, fit, geometry, and material quality are crucial. Using a bracket dedicated to a specific M-Class generation allows for:

• Factory fitment with mounting points in the body and bumper, without the need for modifications.
• Proper routing of the controller in relation to electrical harnesses and other Parktronic system components.
• Reduction of stress acting on the module housing and electrical connectors while driving.
• Easier disassembly and reassembly during diagnostics or system service.

The component from the Electronic control modules and controllers group in the form of a dedicated bracket is particularly important in vehicles where parking assist systems operate in demanding conditions – near the bumper, exposed to moisture, temperature changes, and vibrations.

Installation characteristics

The Mercedes-Benz M-Class ML W164 Parktronic Unit Module Bracket Mount has been designed as a solution consistent with the factory installation concept in the Mercedes M-Class W164. This means that it:

• uses the mounting points provided by the manufacturer in the rear of the vehicle,
• enables correct alignment of the controller in relation to parking sensors and electrical wiring harnesses,
• promotes maintaining tightness and protection of the module against direct contact with water and contaminants.

For workshops and users, this means predictable, repeatable installation and the ability to maintain the original system architecture without using makeshift solutions.

Condition of the component and practical application

The offered bracket comes from disassembly and is a used component, which in the case of this type of part often constitutes an economically justified alternative to new parts. Mounting brackets, while maintaining correct geometry and mounting points, can be successfully reused, providing proper support for electronic modules.

The selection of the bracket for a specific vehicle should always be verified based on the manufacturer's markings and the configuration of the Parktronic system in a given Mercedes M-Class to maintain full compatibility with the existing installation.

Support in selecting electronics and brackets

When planning the replacement or relocation of the Parktronic controller, a broader look at the topic of used automotive electronics may be helpful – from hardware and software compatibility issues to practical aspects of installation. A detailed discussion of these issues can be found in the Global Parts guide: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?

If you are planning a comprehensive repair or upgrade of the assist systems and body electronics area in your Mercedes and need other elements from the same group, such as controllers, comfort modules, or sensor management units, check the available parts in the Mercedes electronic control modules and controllers category.