Mercedes-Benz C E Class W204 W207 Fuse Distribution Box Interior A2045400150

The Mercedes-Benz C-Class E-Class W204 W207 Fuse Box Module A2045400150 is an original electrical system component designed for Mercedes C-Class and E-Class models of the W204 and W207 generations. This type of fuse box serves as a central power distribution point, ensuring stable protection of electrical circuits and proper operation of the vehicle's equipment. Thanks to its factory OEM design, it is precisely fitted to the wiring harnesses and connectors used in these models.

Specifications and technical data

• SKU: A2045400150
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2045400150
• Substitutable numbers: A2045400150, A 204 540 01 50
• Category: Fuses & Fuse Boxes

Purpose and Function in the Electrical System

The described fuse box is a component from the Fuses and Fuse Boxes group, responsible for power distribution and protection of individual circuits in Mercedes C-Class and E-Class vehicles. The module acts as a junction where power and signal wires converge, and appropriately selected fuses protect the system against overload and short circuits.

A properly selected fuse box allows for:

• maintaining the correct operation of comfort modules, lighting, safety systems, and engine control units,
• minimizing the risk of system damage in case of a single circuit failure,
• preserving the factory logic of fuse and relay placement.

Construction and Fit for Mercedes-Benz W204 / W207

The fuse box has been specifically designed for the electrical architecture of the Mercedes C-Class and E-Class W204 and W207 generations, which translates to precise fitting with the factory wiring harness and compatibility with original mounting brackets. The arrangement of fuse sockets and connectors is consistent with the solutions used by the manufacturer, eliminating the need for wiring modifications.

The original design ensures:

• dedicated sockets for individual circuits,
• clear division of power sections,
• stable mounting in the engine bay or vehicle interior, according to Mercedes' design.

Condition, Verification, and Service Application

The component is offered as a used Mercedes fuse box, allowing for economical repair of the electrical system while maintaining original quality of workmanship. This type of part is particularly useful in situations where thermal damage, contact corrosion, or mechanical casing breakage has occurred in the previously installed fuse box.

In workshop practice, the fuse box can be used as:

• a replacement for a damaged component after a short circuit or flooding,
• a part for comparative diagnostics in case of difficult electrical faults,
• a solution for system reconstruction after a collision.

Benefits of Using an Original Fuse Box

Using a factory fuse box in a Mercedes C-Class or E-Class maintains the cohesion of the entire electrical system and avoids problems typical of low-quality aftermarket replacements. Proper fitting to the specific vehicle platform reduces the risk of loose connections, overheating contacts, and incorrect load distribution.

For the user, this means:

• more predictable behavior of the electrical system,
• easier future diagnostics due to the preservation of the factory circuit layout,
• the ability to use Mercedes service documentation without the need for adaptation.

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 fuse boxes, modules, or protection units, check the available parts in the Mercedes Fuses and Fuse Boxes category.

For drivers interested in a broader perspective on component maintenance and purchasing used drivetrain elements, a practical guide can be found in the article on common faults and choosing used manual, automatic, and DSG gearboxes, which helps in better planning of vehicle service work.