Mercedes W177 Fuse Box Relay Cover Lid Control Unit Bracket Trim A2475407800

Mercedes W177 Fuse Box Relay Cover Lid Control Unit Bracket Trim is an original mounting component designed to protect electrical modules in the vehicle's compartment. This practical, factory-made bracket-cover ensures stable mounting of control units and fuses, while helping to keep the electrical system organized, which is particularly important during service and diagnostics. Thanks to its precise fit for the W177 body, the component works perfectly with the factory fuse box and relay connections.

Specifications and technical data

• SKU: A2475407800
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2475407800
• Substitutable numbers: A2475407800, A 247 540 78 00
• Category: Fuses & Fuse Boxes

Purpose and function of the component

The described cover serves as both a shield and a bracket for control modules and relays within the fuse box. The design has been engineered to:

• protect sensitive electrical components from environmental contaminants,
• ensure stable, repeatable positioning of relays and control units,
• facilitate service access to the fuse box without interfering with the wiring harness.

As a result, servicing the electrical system in a Mercedes W177 is more predictable, and the risk of accidental damage to components during maintenance work is minimized.

Construction and fitment for Mercedes W177

The cover-bracket has been developed specifically for the W177 platform, which translates into an excellent fit with the factory fuse box and adjacent body components. Properly shaped mounts and guides allow for:

• secure seating of the entire assembly without additional modifications,
• maintaining the original routing of the electrical installation,
• easy removal and reinstallation during inspections.

By using an original Mercedes component, you maintain the factory mounting geometry, which is important for both reliability and the vehicle's future resale value.

Condition and service application

The element comes from the Fuses and Fuse Boxes category, which clearly defines its role in the vehicle – it is a part intended for operation in the immediate vicinity of electrical protection systems. A used component of this type works particularly well for:

• post-accident repairs in the electrical compartment area,
• restoring the factory mounting layout after unprofessional modifications,
• comprehensive replacement of a damaged fuse box along with its accessories.

Choosing an original cover allows you to avoid compatibility issues that often arise when using aftermarket parts with different shapes or dimensional tolerances.

Benefits of using the original fuse box cover

Using this component in a Mercedes W177 brings a number of practical service and operational benefits:

• maintaining the factory standard for electrical installation routing,
• increasing the clarity of the relay and control module layout,
• reducing the risk of looseness and vibrations affecting electrical connections,
• easier identification and handling of individual components during diagnostics.

For workshops and users who care about compliance with manufacturer documentation, the original fuse box cover is a sensible choice for repairs or reconstruction of the electrical system.

If you are planning a comprehensive repair or upgrade of the electrical system area in your Mercedes and need other items from the same group, such as additional covers, module brackets, or box housings, check out the available parts in the Mercedes Fuses and Fuse Boxes category.

For drivers considering broader interior customization and improving workstation ergonomics, it is worth checking out our guide on replacing the steering wheel with a higher-class version – you can find practical tips in the article Personalization and ergonomics – when is it worth replacing the steering wheel with a premium model?.