Mercedes W205 W213 Fuse Box Rear SAM Module Electrical Unit A2139068801

The Rear SAM Fuse Box Module for Mercedes W205 / W213 is a specialized electronic control unit responsible for power distribution and circuit protection in the rear of the vehicle. As a component from the Fuses and Fuse Boxes group, it ensures organized wiring and stable operation of electrical systems. A used module allows for a technically correct replacement of a damaged part while maintaining the factory installation architecture.

Specifications and technical data

• SKU: A2139068801-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2139068801
• Substitutable numbers: A2139068801, A 213 906 88 01
• Location on the vehicle: Rear
• Category: Fuses & Fuse Boxes

Purpose and Function of the Rear Fuse Box Module

The offered SAM module is designed for installation in the rear body section of Mercedes C-Class W205 and E-Class W213 models. It is responsible for powering and protecting selected electrical circuits, such as lighting elements, specific control units, and receivers located in the rear zone of the vehicle. Thanks to its factory design, the module integrates with the original wiring harness and the car's electrical architecture.

Construction and Technical Advantages

The module is an integrated electrical unit with sockets for fuses and connectors for the vehicle's wiring. The arrangement of pins and connectors conforms to the original Mercedes design, facilitating installation and minimizing the risk of errors. The module's construction allows for quick access to fuses, speeding up diagnostics and potential fuse replacements.

Using an original module from the same model group ensures consistency in electrical parameters, such as the current carrying capacity of individual circuits and the characteristics of protective devices. This solution promotes stable operation of electronic systems and reduces the risk of incorrect communication between control units.

Benefits of Using an Original Rear Fuse Box

Using a factory rear fuse box module in a Mercedes offers several practical benefits:

• maintaining the original power and protection logic in the rear of the vehicle,
• correct fit for electrical harnesses and mounting points,
• organized access to fuses and relays in one location,
• reducing the risk of overloads and short circuits thanks to appropriately selected power circuits,
• easier diagnostics of electrical system faults in the rear body zone.

For workshops and users, this means more efficient servicing and the ability to restore proper operation of electrical systems without altering the factory installation.

Condition, Compatibility, and Installation

The offered module is from a used vehicle, allowing for an economical replacement while maintaining the original manufacturer's specifications. Before installation, it is recommended to verify compatibility with the specific vehicle equipment version and configure it according to Mercedes service procedures. A correctly selected rear fuse box module enables the restoration of proper circuit power supply without the need for wiring modifications or additional cabling.

Expanding the Electrical System in a Mercedes

If you are planning a comprehensive repair or upgrade of the electrical zone in the rear of your Mercedes and require other components from the same group, such as additional boxes, fuse sockets, or power distribution modules, check the available parts in the Mercedes Fuses and Fuse Boxes category.

For a better understanding of the connections between power supply and the operation of drive units and accessories, it is worth familiarizing yourself with the guide on diagnosing injection systems, available in the article Diesel Injector Faults – How to Recognize Them and What Their Neglect Entails, which helps to view the electrical system and engine power supply holistically.