Mercedes-Benz C CLK W202 W208 Fuse Box Relay Control Unit Electric A2085450140

Mercedes-Benz C CLK W202 W208 Fuse Box Relay Control Unit Electric is an original electrical system component responsible for precise circuit control and protection of the installation against overloads. Thanks to its factory design tailored to C-Class and CLK models, it ensures stable operation of the vehicle's electronics and facilitates diagnostics and maintenance.

Specifications and technical data

• SKU: rhd-A2085450140
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2085450140
• Substitutable numbers: A2085450140, A 208 545 01 40, KZ
• Category: Fuses & Fuse Boxes

Purpose and function in the vehicle

The presented fuse box with control unit has been designed specifically for the electrical systems of the Mercedes-Benz C-Class W202 and CLK W208. It is responsible for:

• distributing power to key electrical consumers,
• operating relays responsible for switching individual circuits,
• protecting the installation against short circuits and overloads,
• organized circuit routing, which facilitates service and diagnostics.

Thanks to its OEM design, the module maintains full compatibility with the factory wiring harness, which minimizes the risk of fitment issues and eliminates the need for installation modifications.

Construction and technical features

The module combines the function of a fuse box and a relay control unit in one housing. The layout of sockets and connectors is consistent with the factory Mercedes configuration, which allows for:

• clear circuit labeling and quick access to individual fuses,
• secure seating of relays and installation plugs,
• stable electrical connections, reducing voltage drops and interference.

Such a solution supports trouble-free operation of comfort, lighting, and control systems, and also makes it easier to locate faults in case of power supply issues.

Service application and installation

The fuse and relay box module will prove useful both as a replacement part in case of damage to the original unit and for comprehensive electrical system restoration in older C-Class and CLK models. In practice, this means that it:

• can replace a worn or overheated fuse box,
• helps eliminate problems with intermittent power loss to selected circuits,
• reduces the risk of further installation damage resulting from faulty protection devices.

Thanks to the factory design, installation proceeds in an orderly manner, maintaining original mounting points and harness routing, which translates into consistency with the vehicle's factory electrical architecture.

Condition and benefits of choosing a used part

The offered item comes from the Fuses and fuse boxes category and is a used part, which represents a reasonable compromise between repair costs and maintaining original Mercedes quality. Choosing this solution allows you to:

• maintain consistency with the factory electrical system,
• preserve the original operating characteristics of the systems,
• reduce service costs compared to new components.

For many users of older C-Class and CLK models, this is a practical way to restore the proper operation of the electrical system without giving up parts sourced from the vehicle manufacturer.

Related items and additional information

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 modules, housings, or connectors, check the available parts in the Mercedes Fuses and fuse boxes category.

If you are also considering refreshing the look of your car, and are particularly interested in the topic of regeneration and purchasing components from the secondary market, you will find useful information in the article Used wheels like new – a guide to buying and refurbishing alloy wheels, which shows how to consciously choose used components and take care of their further operation.