Mercedes W221 Roof Antenna Aerial Shark Antenna Covering A2218204975

Visual condition of the part 

The product shows signs of use visible in the photos. 

Mercedes W221 Roof Antenna Aerial Shark Antenna Covering is an original body component designed for the rear part of the roof, responsible for the aesthetic and functional finishing of the antenna mounting point. Thanks to its tailored design, it ensures a cohesive look for the bodywork and stable seating of the antenna module. It is a practical solution for users who want to restore the factory look of the vehicle after damage or removal of the antenna, while maintaining the original Mercedes styling.

Specifications and technical data

• SKU: A2218204975
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2218204975
• Substitutable numbers: A2218204975, A 221 820 49 75
• Location on the vehicle: Rear
• Category: Amplifier Parts & Accessories

Purpose and function of the roof antenna cover

The shark-fin shaped cover mounted on the rear part of the roof performs several key tasks: it protects the antenna base from the influence of external factors, stabilizes its position, and streamlines airflow around this element. In the Mercedes W221 model, this type of housing allows for maintaining the consistency of the roof line, reducing air turbulence, and improving the visual integration of the antenna with the bodywork.

The element is particularly important during post-collision repairs, rear window replacement, or body and paint work in the rear roof area, where it is easy to damage the factory antenna housing.

Construction, color, and body fitment

The cover features a characteristic, aerodynamic "shark fin" profile, which has been designed for aerodynamics and to match the curvature of the roof in the W221 generation S-Class Mercedes. The black color allows for aesthetic integration into the bodywork, both in the case of dark paint jobs and contrasting combinations with lighter body colors.

Precise fitment to the roof surface reduces the risk of leaks in the antenna mounting area and minimizes vibrations at higher speeds. As a result, the cover supports the stable operation of the antenna module mounted beneath it and helps maintain an orderly appearance of the rear part of the vehicle.

Benefits of using an original Mercedes cover

Using an original roof antenna cover in a Mercedes W221 brings a number of practical benefits:

• preservation of the factory roof line and stylistic consistency of the vehicle,
• proper fitment to the body curvature without the need for modifications,
• stable antenna mounting and reduction of vibrations when driving at higher speeds,
• protection of the antenna base against water, dirt, and UV radiation,
• easier cleaning of the rear roof area.

For users who value preserving the original character of the car, it is particularly important that the cover comes from the Mercedes product line, which translates into dimensional and assembly compatibility with the factory solutions used in the W221.

Mounting zone and service application

The element is intended for installation in the rear part of the roof, in the location factory-provided for the antenna. Such placement allows for optimal routing of antenna cables inside the vehicle and facilitates service access during work on the electrical installation or when removing the headliner upholstery.

The cover will work well both for standard replacement of a damaged element and for comprehensive body renovation, when it is necessary to recreate the original antenna housing layout. In workshop practice, this enables faster installation without the need to adjust universal replacements.

Modernization expansion and technical knowledge

If you are planning a comprehensive repair or modernization of the roof area in your Mercedes and need other elements from the same group, such as additional housings, mounts, or accessory mounting elements, check out the available parts in the Mercedes amplifier parts and accessories category.

While working on the bodywork and antenna installation, many drivers also consider improving the car's performance. If you are interested in safely increasing engine potential using proven components, check out the guide How to increase engine power: a practical guide to engine tuning with used parts, where you will find organized knowledge about selecting and installing used components.

To better understand the importance of original components in the context of durability and safety, it is also worth reading the article OEM quality guarantee and safety – why are used original car parts the best choice for your car?, which explains how to consciously choose used body and equipment elements.