Mercedes W205 W213 Fuse Box Rear SAM Module Electrical Control Unit A2139068701

The Mercedes W205 W213 Fuse Box SAM Module A2139068701 is an original power and current distribution system component designed for installation in the rear of Mercedes W205 and W213 class vehicles. This SAM module is responsible for stable electrical circuit management, ensuring the proper operation of numerous consumers in the rear of the car. This used OEM component is a solution for drivers and workshops seeking proven, factory quality at a reasonable budget.

Specifications and technical data

• SKU: A2139068701-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2139068701
• Substitutable numbers: A2139068701, A 213 906 87 01
• Location on the vehicle: Rear
• Category: Fuses & Fuse Boxes

Function and Role of the SAM Module in the Electrical System

The SAM electrical module, in the form of a fuse box, plays a crucial role in power distribution in the rear of the body. It is responsible for the logical separation of circuits, protection of the installation through fuses, and control of selected electrical functions. This makes the system more resistant to overloads, and potential faults easier to locate.

Its placement in the rear of the vehicle allows for shorter wiring harnesses to lamps, comfort modules, or other consumers, which translates to smaller voltage drops and a more organized electrical architecture. For service centers, this means faster diagnostics, and for users, more stable equipment operation.

Compatibility with Mercedes W205 and W213

The presented fuse box has been specifically designed for the Mercedes W205 and W213 platforms, ensuring a perfect fit with the factory installation. This means compatibility with original wiring harnesses, connectors, and mounting points in the rear of the body.

By using an original SAM module, consistency with the vehicle's electrical architecture, including diagnostic systems, is maintained. This facilitates adaptation in the vehicle after replacement, reduces the risk of communication errors in the vehicle network, and allows for the use of factory service procedures.

Benefits of Using an Original Fuse Box

Choosing an original electrical module in the Fuses and Fuse Boxes category offers a number of practical advantages:

• factory fit for the Mercedes W205/W213 electrical system,
• preservation of original protection logic and circuit division,
• easier diagnostics using standard service tools,
• consistency with the manufacturer's technical documentation.

A used OEM part allows for the restoration of correct electrical system operation after a fuse box failure or installation damage, without the need for costly alternatives with uncertain specifications.

Service Purpose and Installation

The module is primarily intended for service applications – as a replacement part in case of damage to the factory fuse box or power supply issues in the rear of the vehicle. Thanks to its original design, installation is carried out in the location designated by the manufacturer, using factory mounting points and connectors.

Before installation, it is recommended to verify compatibility with the specific vehicle equipment version and electrical configuration, as well as to perform post-installation diagnostics to confirm proper communication of the module with other vehicle systems.

System Expansion – Other Mercedes Electrical Components

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

To better plan electrical system service work before the winter season and to get a list of components worth checking, the following guide may be helpful: Winter Essentials: Which Used Car Parts Are Worth Checking and Replacing Before the Frost?.