Fuse Box Mercedes W205 W213 Front Engine Compatment Relay Module A2139065706

The Mercedes W205 W213 Fuse and Relay Box A2139065706 is an original electrical system component from the Fuses and Fuse Boxes group, designed for installation in the front of the vehicle. The box serves as a central power distribution point, integrating fuses and relays responsible for the stable operation of key Mercedes car systems. Its factory design ensures proper circuit routing and organized installation.

Specifications and technical data

• SKU: A2139065706-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2139065706
• Substitutable numbers: A2139065706, A 213 906 57 06
• Location on the vehicle: Front
• Category: Fuses & Fuse Boxes

Vehicle Application and Function

The presented fuse and relay box is designed for operation in the front zone of the vehicle, where most main power circuits are concentrated. It is responsible for distributing voltage to consumers and protecting the installation against overloads and short circuits, which directly impacts the reliability of systems such as lighting, engine control, and comfort features.

As an original Mercedes part, the box maintains compatibility with the factory electrical architecture, facilitating diagnostics, servicing, and potential future installation upgrades. The module's design is prepared for integration with dedicated wiring harnesses and factory connectors, minimizing the risk of installation errors.

Construction and Technical Specifications

The fuse and relay box for W205 and W213 models has been developed as a compact module integrating several functions within a single housing. The single body organizes:

• sockets for fuses responsible for individual electrical circuits,
• mounting locations for relays controlling selected systems,
• connectors for linking to the vehicle's main wiring harness.

This solution allows for clear circuit routing and quick service access. Centralizing protection and control in a single module simplifies fault localization, replacement of individual fuses or relays, and inspection of the installation's condition during maintenance.

Benefits of Using an Original Box

Using the factory fuse and relay box in a Mercedes W205 or W213 offers a range of practical benefits:

• Full installation compatibility – precise fit with original harnesses, brackets, and mounting points in the front compartment.
• Stable operating parameters – adherence to manufacturer-specified power paths and protection levels.
• Easier diagnostics – fuse and relay layout consistent with Mercedes service diagrams.
• Integration with other electrical system components – no need for modifications or adaptations.

This type of component is particularly important when addressing electrical damage, after water ingress in the front compartment, or following a collision, where replacing the power distribution module with a part conforming to factory standards is necessary.

Product Characteristics and Installation

The offered box belongs to the Fuses and Fuse Boxes category and originates from a Mercedes vehicle. The product is used, meaning it comes from a dismantled vehicle, and its construction retains the manufacturer's original solutions. This type of component is intended for installation in the front part of the body, in the location designated by the design of the W205 and W213 models.

The replacement of the fuse and relay box should be carried out following service procedures – with the vehicle's power disconnected, connectors inspected, and the correct seating of fuses and relays verified. Precise fitment for the specific model version is crucial for the proper functioning of all circuits, so it is advisable to compare the module's configuration with the vehicle's technical documentation before installation.

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 require other components from the same group, such as additional boxes, power distribution modules, or fuse housings, check the available parts in the Mercedes Fuses and Fuse Boxes category.

To compare design solutions used in other brands and to better understand how manufacturers develop electrical systems and select components, you can read an article describing the evolution of sports compacts – The Legend of the Hot Hatch: Evolution of the VW Golf GTI from Mk1 to Mk8 – Structural Changes and VW Car Parts. This will help you better appreciate the importance of selecting the right modules in modern cars.