Mercedes-Benz E-Class W211 Sam Unit Module Fuse Box Rear A2115453401

Mercedes-Benz E-Class W211 Sam Unit Module Fuse Box Rear is an original electrical system component responsible for advanced power management and circuit protection in the rear of the vehicle. Thanks to the factory Mercedes design, this rear fuse module ensures proper integration with the electrical system and stable operation of comfort and safety components. It is a practical service solution for users who expect reliable electronic performance in their W211.

Specifications and technical data

• SKU: A2115453401
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2115453401
• Substitutable numbers: A2115453401, A 211 545 34 01
• Location on the vehicle: Rear
• Category: Fuses & Fuse Boxes

Purpose and function in the Mercedes-Benz E-Class W211

The described Mercedes-Benz E-Class W211 Sam Unit Module Fuse Box Rear is designed for installation in the rear of the E-Class W211 body and acts as a local power distribution center. It integrates the following into a single housing:

• electrical circuit protection in the form of fuses,
• control logic for selected comfort and lighting functions,
• connectors enabling quick wiring harness connection.

This solution reduces wire length, improves reliability, and facilitates diagnostics in the event of electrical faults in the rear of the vehicle.

Construction and technical advantages of the SAM module

The module belongs to the Fuses and fuse boxes category, which means its design is optimized for circuit protection and easy service access. The housing is intended for operation in the luggage compartment, accounting for the typical temperature and vibration loads found in the Mercedes-Benz E-Class W211.

Key technical advantages include:

• factory fitment for the electrical system of the specific W211 generation,
• integrated fuse sockets, facilitating replacement and inspection,
• compact design, allowing for organized routing of electrical harnesses.

As a result, the module constitutes a coherent element of the electrical architecture, designed in accordance with the manufacturer's standards.

Vehicle placement and installation aspects

The component is intended for installation in the rear of the vehicle, which is important for both diagnostics and service planning. Access to the module is typically gained from the luggage compartment, which makes it easier to check fuses and connections without interfering with the dashboard.

When replacing, it is recommended to:

• disconnect the vehicle's power supply before removal,
• carefully compare the configuration of sockets and plugs with the currently installed component,
• check the condition of harnesses and connectors for signs of overheating or corrosion.

This approach minimizes the risk of installation errors and ensures proper communication between the module and other controllers in the vehicle's network.

Product characteristics and benefits of choosing a used part

The offered module is an original Mercedes brand component in used condition, which represents a reasonable compromise between cost and maintaining factory specifications. Unlike aftermarket replacements of uncertain quality, the original SAM module maintains compatibility with the W211 electrical architecture, which is significant for communication with other controllers and computer diagnostics.

For users considering different service strategies for electronic repairs, it is worth reading the practical discussion in the article New or used? A comparison of the costs and quality of car parts, which presents the differences between new and used OEM components.

Complementary Mercedes Fuses and fuse boxes

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