Mercedes W221 Roof Antenna Shark Fin A2218203175 Tanzanite Blue Metallic - 359

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W221 Roof Antenna Shark Fin Tanzanite Blue Metallic - 359 in Tanzanite Blue Metallic - 359 is an original component from the Car antennas group, designed for installation on the roof of the W221 generation S-Class limousine. The characteristic shark fin shape improves the vehicle's aerodynamics and maintains the factory look of the car. This is a solution for users who want to maintain stylistic consistency of the bodywork while preserving the functionality of radio and telematic systems.

Specifications and technical data

• SKU: A2218203175-TB
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2218203175
• Substitutable numbers: A2218203175, A 221 820 31 75
• Color: Tanzanite Blue Metallic - 359
• Category: Antennas

Purpose and function of the roof antenna

The shark fin roof antenna used in the Mercedes S-Class W221 is responsible for receiving radio signals and working with factory onboard systems, depending on the vehicle configuration. Mounted centrally on the rear part of the roof, it ensures stable operating conditions, reduces interference, and allows for aesthetic routing of wiring inside the headliner.

The housing profile has been designed to minimize air resistance and noise at higher speeds, which is particularly important in premium class cars where cabin acoustic comfort is a priority. Using a factory solution avoids problems with roof leaks or poor seal fitment to the sheet metal contours.

Design and color matching

The finish in Tanzanite Blue Metallic - 359 allows for a seamless match of the antenna to a body painted in the same color, without the need for additional painting. The metallic coating gives the component an elegant character that fits well with the styling line of the S-Class W221.

The shark fin housing is low and compact, so it does not disturb the roof line while remaining clearly visible as a factory equipment element. Using an original antenna from this series allows for maintaining a uniform shade and paint structure across the entire roof, which is important during post-accident repairs or when replacing components after mechanical damage.

Benefits of using an original Mercedes antenna

Choosing an original roof antenna from the Car antennas family for a Mercedes W221 primarily ensures a perfect fit to the factory mounting hole and compatibility with the vehicle's electrical installation. This reduces the risk of sealing issues, module communication errors, or a drop in signal reception quality.

• Factory base shape matched to the curvature of the W221 roof.
• Aesthetic transition between the body paint and the antenna housing.
• Ability to maintain the original appearance of the vehicle after body and paint repairs.
• No need for bodywork or installation modifications when replacing the component with a compatible model.

Characteristics of the used component

The antenna comes from dismantling, which allows for an economical restoration of the vehicle's reception systems while maintaining the manufacturer's original specifications. A used component of this type is a good solution for repairs where combining functionality with reasonable cost is key, especially in older S-Class models.

Using parts from dismantling also reduces the risk of color differences, as the housing was factory-painted rather than repainted. This is significant for vehicles where the owner pays attention to the visual consistency of the roof, pillars, and other body elements.

Expanding the antenna system in a Mercedes

If you are planning a comprehensive repair or upgrade of the roof area in your Mercedes and need other elements from the same group, such as additional antenna modules, bases, or shark fin housings, check the available parts in the Mercedes car antennas category.

More about the advantages of used parts

When choosing parts from dismantling for premium segment cars, it is worth paying attention to the cost-to-visual and functional effect ratio. A well-chosen, used roof antenna allows you to maintain a high standard of equipment without the need to invest in new components.

If you are interested in the broader context of using second-hand parts in high-end cars and want to learn practical tips on selecting components, read the article Used car parts for Mini Cooper – a way for style and savings, which discusses how to combine aesthetics with a reasonable budget while maintaining appropriate component quality.