Mercedes C CLK Class W203 C209 Sam Control Module Fuse Box Rear A2035453401

Mercedes C CLK Class W203 C209 Sam Control Module Fuse Box Rear is an advanced electrical system component responsible for managing circuits in the rear part of the vehicle. This specialized module, belonging to the Fuses and fuse boxes category, ensures organized power distribution and control of multiple body functions. Thanks to its factory design intended for specific Mercedes models, it represents a precise service solution for demanding users.

Specifications and technical data

• SKU: A2035453401
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2035453401
• Substitutable numbers: A2035453401, A 203 545 34 01, EM
• Location on the vehicle: Rear
• Category: Fuses & Fuse Boxes

Purpose and function of the rear SAM module

The SAM module in the rear of the body acts as a central hub that integrates power and control circuits for various electrical consumers located at the back of the car. It is responsible for, among other things, logical power distribution, circuit protection via fuses, and communication with other vehicle control units. Such a solution facilitates diagnostics, reduces the number of individual connections, and improves the clarity of the entire installation.

Due to its dedicated placement in the rear zone of the vehicle, the module is structurally prepared to operate in conditions typical for this part of the body, which promotes the stability of electrical parameters and proper cooperation with the factory wiring harness.

Benefits of using the original module in the Mercedes W203 / C209

Using a SAM module matched to the W203 and C209 platform allows for maintaining consistency with the factory electrical architecture. This means:

• correct assignment of circuits to the appropriate fuse and relay sockets,
• compliance with factory installation diagrams,
• easier diagnostics using standard service tools,
• reduced risk of communication errors between modules.

For the user, this translates into more predictable behavior of electrical systems, stable operation of lighting, comfort features, and other functions handled from the rear of the vehicle. In the case of post-accident repairs or troubleshooting power-related issues, a properly selected SAM module significantly facilitates restoring the system to full functionality.

Assembly and operational characteristics

The module intended for installation in the rear of the car is structurally prepared to work with the factory wiring harness and original connectors. This allows technicians to perform the replacement in an organized manner, without the need to modify the installation. Maintaining the original connection layout facilitates future service and limits the risk of hard-to-locate faults appearing.

As an element from the Fuses and fuse boxes group, the module is designed to provide clear access to circuit protections. This facilitates checking the condition of fuses, their replacement, and potential diagnostic measurements during inspections or repairs.

Application in service practice

In vehicles operated for many years, typical problems in the rear part of the electrical system may result from overloads, connector corrosion, or previous makeshift repairs. In such situations, replacing the SAM module with the correct unit is often the most effective solution, allowing for the restoration of proper power and control logic.

This module will prove useful both for repairs after flooding or short circuits in the rear installation, as well as for comprehensive electrical restoration after a collision. Thanks to maintaining the factory architecture, the service has the ability to more quickly confirm the correct operation of individual circuits and limit the number of additional modifications.

Expanding the electrical system in a Mercedes

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

For drivers interested in deepening their knowledge about selecting used electrical and lighting components, a useful supplement may be our guide article – you can find more information in the material See more and better – a complete guide to selecting and replacing used LED and Xenon headlights, which discusses the practical aspects of choosing original OEM elements.