Mercedes W204 C207 Fuse Box Relay SAM Control Unit Module A2075402750

Mercedes W204 C207 Fuse Box Relay SAM Control Unit Module is an original electrical system component designed for installation in the front section of the vehicle. As part of the Fuses and fuse boxes category, it is responsible for precise power management and relay operation, which ensures the stable performance of the electrical installation. This used, factory-original SAM module is a solution that maintains compatibility with the Mercedes factory electrical architecture.

Specifications and technical data

• SKU: RHD-A2075402750-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2075402750
• Substitutable numbers: A2075402750, A 207 540 27 50
• Location on the vehicle: Front
• Category: Fuses & Fuse Boxes

Purpose and function in the vehicle

The described SAM module is a component of the power management system in Mercedes C-Class W204 and E-Class Coupe C207 models, located in the front of the vehicle. It is responsible for power distribution to key consumers, cooperation with relays, and monitoring of fuse-protected circuits.

Thanks to its integration with the body wiring, the module supports, among other things, the operation of lighting, selected control units, and other electrical consumers, ensuring consistent system performance. Using an original component allows for maintaining proper operating parameters and reduces the risk of compatibility issues.

Construction and technical features

The SAM module combines control electronics with sockets for fuses and relays in a single housing, which facilitates service and diagnostics. The design intended for front-of-vehicle installation provides convenient service access and a clear layout of connectors and fuse fields.

The most important design advantages include:

• factory fitment for Mercedes electrical harnesses,
• well-designed layout of fuse and relay sockets,
• compact housing for easy installation in the front compartment,
• integration of control and protection functions into a single module.

Benefits of using an original SAM module

Using an original Mercedes W204 C207 Fuse Box Relay SAM Control Unit Module provides tangible operational benefits. Factory compatibility with the electrical system minimizes the risk of communication errors between control units and coding issues. A used OEM component also allows for reduced repair costs compared to purchasing a new part, while maintaining correct operating parameters.

Replacing the module is particularly recommended in cases of:

• recurring power supply problems in selected circuits,
• damage following a short circuit or flooding of the fuse box,
• communication errors related to the power management module.

Condition and service application

The offered item is in used condition, making it an attractive cost-effective alternative for electrical system repairs. Choosing an original module from dismantling allows for maintaining consistency with the factory electrical design, which is particularly important in vehicles equipped with extensive comfort and safety electronics.

Before installation, it is recommended to verify compatibility with the specific vehicle equipment version and perform standard diagnostics after installation to confirm proper communication with other control units.

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

To better plan your repair budget and make informed choices when selecting original parts from dismantling, it is worth reading practical tips on choosing used brake system components – they are discussed in detail in the article Brake calipers under the microscope: How to effectively reduce repair costs by choosing verified recycled parts.