Mercedes ML W164 Fuse Box Relay Module Front Control Unit Module A1645400672

The Mercedes ML W164 Front Fuse Box Control Module is an original part from the Fuses and Fuse Boxes category, responsible for precise management of electrical circuits in the front of the vehicle. As a factory relay and control module, it ensures stable operation of electrical systems and facilitates professional diagnostics. A used OEM part is a sensible choice for those seeking a proven solution at an attractive price, while maintaining high quality of workmanship.

Specifications and technical data

• SKU: A1645400672
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1645400672
• Substitutable numbers: A1645400672, A 164 540 06 72
• Location on the vehicle: Front
• Part type: Fuse Box
• Category: Fuses & Fuse Boxes

Module Purpose and Function

The described module is a front fuse box with relay module designed for Mercedes ML W164 generation models. Its placement in the front of the vehicle allows for direct control of key circuits, such as powering basic body systems, controlling selected consumers, and protecting the installation against overloads.

As an original Mercedes part, the module is designed for full integration with the factory electrical system, minimizing the risk of compatibility issues and simplifying installation in place of the old component.

Construction and Technical Advantages

The front fuse box control module combines fuse sockets, relays, and control electronics in one housing, simplifying the electrical architecture in the front compartment. This solution:

• organizes wiring harnesses and facilitates service access,
• reduces the number of connections, which lowers the risk of voltage drops,
• ensures clear circuit division and faster fault localization.

Thanks to its factory design, the module works with original brackets and connectors, allowing for installation in existing mounting points without electrical modifications. Precise fit for the W164 platform translates to stable seating and resistance to vibrations typical of SUV operation.

Vehicle Placement and Installation

The part is intended for installation in the front of the vehicle, in the location of the factory fuse box with control module. This placement ensures:

• shorter wire runs to main consumers at the front of the car,
• easier access during diagnostics and fuse replacement,
• logical circuit arrangement in the front compartment.

For workshops and advanced users, this means faster service and a lower risk of errors when connecting connectors. Replication of the factory pin layout allows for direct replacement of a damaged module without the need for harness modifications.

Condition and Benefits of Choosing a Used Part

The module comes from the group of used original parts, which in practice means real savings while maintaining a design consistent with the manufacturer's standard. For many Mercedes ML W164 owners, this is an optimal compromise between repair cost and component quality, especially for complex electrical systems.

Choosing a used fuse box control module is particularly beneficial when you want to:

• maintain the original electrical system architecture,
• avoid problems with fitting universal aftermarket parts,
• limit costs while maintaining a high level of reliability.

Technical Support and Related Content

If you are modernizing or repairing the electrical system in your SUV and also need other parts from this group, such as additional modules, boxes, or power distribution units dedicated to this brand, check the available parts in the Mercedes Fuses and Fuse Boxes category.

When planning a broader improvement of the car's comfort and functionality – from electrics to cabin equipment – it's worth exploring practical tips on selecting parts from the secondary market, which you can find in the article Premium Interior for Half the Price: Used Seats, Steering Wheels, and Multimedia.