Mercedes W203 Fuse Box Relay SAM Control Module A2035451601

Mercedes W203 Fuse Box Relay SAM Control Module is a key component of the electrical system, responsible for safe power distribution and controlling multiple circuits in the vehicle. The original SAM module ensures stable operation of the installation, reduces the risk of failure, and facilitates diagnostics. This solution is dedicated to users who want to maintain factory-quality electrical installation and compatibility with Mercedes onboard systems.

Specifications and technical data

• SKU: A2035451601
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2035451601
• Substitutable numbers: 5DK008485, A2035451601, A 203 545 16 01, A 203 545 28 01, A2035452801, A 203 545 30 01, A2035453001, A 203 545 36 01, A2035453601, A 203 545 42 01, A2035454201, A 203 545 46 01, A2035454601
• Part type: Fuse Box
• Category: Fuses & Fuse Boxes

Function and role of the SAM module in the Mercedes W203

The SAM module in the fuse box acts as a central hub for power distribution and control of selected electrical consumers. It is responsible for, among other things:

• monitoring and protecting individual circuits through appropriately selected fuses,
• coordinating the operation of selected comfort and safety modules,
• stable transmission of control signals within the electrical installation.

By using an original solution, consistency with the factory electrical architecture of the Mercedes is maintained, which translates into predictable system performance and easier diagnostic work.

Compatibility and interchangeable part numbers

The presented module belongs to a group of components for which the manufacturer has provided various catalog numbers and interchangeable part numbers. This means that one physical component may appear in service documentation under several designations while maintaining the same function and operating method in the installation.

Before purchasing, it is worth comparing the markings from the nameplate of your module with the data in the specification to confirm compatibility. Such verification allows you to select a fuse box module precisely matched to the specific vehicle configuration and avoid communication problems in the electrical network.

Benefits of using an original control module

Using an original SAM module in a Mercedes W203 brings a number of practical technical benefits:

• maintaining full compatibility with factory diagnostic systems and vehicle software,
• proper cooperation with other controllers in the electrical network,
• appropriately selected current protection for individual circuits,
• reduced risk of incorrect error readings and CAN communication problems.

For users planning long-term vehicle operation, it is also important that original Mercedes electrical components positively influence the perceived quality of the vehicle upon potential resale.

Condition, origin, and practical application

The offered module comes from a Mercedes vehicle and is an item from the Fuses and fuse boxes category. As a used part, it represents a cost-effective solution for workshops and individual users who want to restore the efficiency of the electrical installation without the need to invest in a new component.

In practice, installation involves replacing the complete box with the control module, while observing safety rules for working with the vehicle's electrical system. After correct connection and potential diagnostic adaptation, the module allows for the restoration of proper power supply and control of circuits that previously generated errors or faults.

Support with selection and expanding knowledge

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 boxes, sockets, or fuse housings, check the available parts in the Mercedes Fuses and fuse boxes category.

To better understand how the selection of original used components affects the vehicle's value, it is worth reading the article Original used parts vs. car resale price – how not to lose?, which discusses the importance of factory components when selling a car later.