Mercedes W204 Aerial Antenna Control Unit Bracket Holder Mount A2045452647

Mercedes W204 Aerial Antenna Control Unit Bracket Holder Mount is a component from the Electronic control modules and controllers group, designed for installation in the trunk area, where it protects wiring harnesses and electrical modules from mechanical damage. This used component allows for the restoration of the factory mounting of electronics in the trunk, ensuring stable support and organized cable routing.

Specifications and technical data

• SKU: A2045452647
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2045452647
• Substitutable numbers: A2045452647, A 204 545 26 47
• Category: ECUs & Computer Modules

Purpose and function in the Mercedes W204

The trunk side panel cover in the W204 model is responsible for the proper mounting and separation of electrical components from the upholstery and cargo area. As a result, control modules, connectors, and wires are less exposed to accidental luggage impacts, abrasion, or moisture resulting from daily vehicle use.

A properly selected cover helps maintain the original geometry of the trunk interior, which facilitates electronics service and reduces the risk of looseness, rattling, and unwanted vibrations in the area of the control modules.

Benefits of using an original cover

Using an original element from the Electronic control modules and controllers group ensures a perfect fit with factory mounting points and compatibility with the W204 body structure. This is particularly important for:

• repairs after a collision in the rear part of the vehicle,
• removing the effects of flooding or moisture in the trunk,
• installing or replacing electronic modules in the side of the trunk.

The used component allows for an economical repair while maintaining the original design, which is beneficial both technically and aesthetically.

Integration with the electrical system

The trunk side panel cover works with the factory electrical system, creating a stable operating environment for controllers and harnesses. When properly installed, it:

• reduces the risk of wire insulation abrasion caused by sharp luggage edges,
• facilitates wire routing and service access to modules,
• helps keep the electronics mounting zone organized.

This helps minimize potential interference with controller operation resulting from vibrations or improper harness routing.

Condition and use in repairs

The component comes from a used vehicle, which allows for cost-effective restoration of the trunk interior without the need to purchase a new part. This solution is often chosen for post-accident repairs, fleet vehicle renovations, and restoring the original configuration after unprofessional modifications.

Choosing a used cover is particularly sensible when the priority is to restore the correct mounting of modules and harnesses, rather than changing the interior appearance to a different stylistic variant.

Technical support and electronics selection

If you are considering a wider replacement of electronic components in your car and want to better understand when it is worth opting for aftermarket components, it is worth reading our guide: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?. You will find practical tips on selecting used modules and the principles of safe installation there.

If you are planning a comprehensive repair or upgrade of the trunk area in your Mercedes and need other elements from the same group, such as module housings, mounting brackets, or additional electronics covers, check out the available parts in the Mercedes electronic control modules and controllers category.