Mercedes EQA H243 X118 W247 Fuse Box Relay Control Unit Module A1779061302

Mercedes EQA H243 X118 W247 Fuse Box Relay Control Unit Module is an original electrical system component responsible for precise management of circuits and relays in the vehicle. As part of the Fuses and fuse boxes group, it ensures organized power distribution and stable operation of key onboard systems. This used OEM component is a sensible choice for professional repairs or replacing a damaged module in modern Mercedes models.

Specifications and technical data

• SKU: A1779061302-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1779061302
• Substitutable numbers: A1779061302, A 177 906 13 02
• Category: Fuses & Fuse Boxes

Purpose and function of the module

The presented Mercedes EQA H243 X118 W247 Fuse Box Relay Control Unit Module is designed to work with the electrical platform of Mercedes vehicles from the EQA family and related H243, X118, and W247 bodies. It is responsible for logical relay control, monitoring of fuse-protected circuits, and integration with the vehicle's communication network.

Thanks to its factory OEM design, the module maintains compatibility with the Mercedes electrical architecture, which translates into:

• correct power distribution between individual circuits,
• stable operation of comfort and safety systems,
• consistency with the vehicle's original software.

Advantages of using an original Mercedes module

Using an original control module within the fuse box allows for maintaining the consistency of the entire electrical system. Factory connectors and pin layout are matched to Mercedes wiring harnesses, which reduces the risk of installation errors and communication problems between control units.

Key benefits include:

• maintaining operating parameters in accordance with the vehicle manufacturer's specifications,
• no need for wiring modifications or connector adaptations,
• easier diagnostics during subsequent service inspections.

For the user, this means more predictable behavior of electrical systems and a lower risk of unwanted error messages.

Characteristics of the used component

The offered module comes from a used vehicle, making it an economical solution while maintaining the manufacturer's original specifications. A component of this type is particularly useful for repairs following electrical damage, localized flooding, or fuse box failures, when it is necessary to replace the controller itself rather than the entire assembly.

Choosing a used OEM module allows you to:

• reduce repair costs compared to a new part,
• maintain full compatibility with the existing installation,
• preserve the original circuit control logic.

Selection and technical compatibility

To correctly select a fuse box control module for a specific Mercedes vehicle, attention should be paid to compatibility with the vehicle platform and the electrical system used. The product has a dedicated OEM part number and associated interchangeable numbers, which facilitates compatibility verification in service catalogs and parts selection systems.

It is recommended to compare the markings with the currently installed component or consult a service center specializing in the Mercedes brand to ensure full compatibility with the specific equipment version and vehicle model year.

Expanding the protection 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 boxes, relays, or power modules, check the available parts in the Mercedes Fuses and fuse boxes category.

Support for vehicle modification and expansion

For more advanced projects, such as equipment expansion or electrical modifications, it is worth checking out practical tips regarding safe tuning and component selection. Additional information can be found in the article How to increase engine power: a practical guide to engine tuning with used parts, which discusses the approach to car modernization using proven, used components.