Mercedes SLK R171 Antenna Aerial Fin Control Unit AM FM Rear Fender A1718200375

Mercedes SLK R171 Antenna Aerial Fin Control Unit AM FM Rear Fender is an original component from the Car antennas category, designed for installation in the rear part of the vehicle body. It ensures a stable, factory-standard antenna mounting, which translates into a secure base fitment and proper operation of the radio system and other installations utilizing the antenna. This used OEM component is a sensible choice for drivers looking for a well-fitted part at an attractive price.

Specifications and technical data

• SKU: A1718200375
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1718200375
• Substitutable numbers: A1718200375, A 171 820 03 75
• Location on the vehicle: Rear
• Category: Antennas

Purpose and function of the antenna mount

The presented mount is dedicated to the Mercedes SLK R171 generation and is responsible for the mechanical seating of the antenna in the rear of the vehicle. A correctly selected component of this type minimizes the risk of looseness, leaks, and damage to the antenna cable, which has a direct impact on the quality of radio signal reception and the durability of the entire system.

The location in the rear zone of the body requires a component with appropriately designed geometry and mounting points so that it works with the factory holes and body panels. Thanks to this, the installation proceeds in a predictable manner, without the need for bodywork modifications or interference with the structure of the roof or trunk lid.

Benefits of using an original component

Choosing an original antenna mount for a Mercedes translates into a number of practical advantages:

• Factory fitment – maintaining the correct position of the antenna relative to the bodywork and electrical installation.
• Constant, predictable connection rigidity, limiting vibrations and loads acting on the antenna base.
• Reduced risk of leaks at the point of passage through the body panel, which helps protect the interior from moisture.
• Easier diagnostics and service, as the design corresponds to factory-applied solutions.

The used OEM component is particularly attractive in situations where mechanical damage to the antenna has occurred (e.g., at a car wash or in a parking lot) and it is necessary to replace the mount itself without investing in a complete new set.

Installation and operational characteristics

The antenna mount in the rear of the Mercedes SLK R171 has been designed to work with the factory wiring harness and body panels. In practice, this means:

• maintaining the original geometry of the antenna setting relative to the vehicle axis,
• the possibility of disassembly and reassembly using standard service procedures,
• compatibility with factory seals and finishing elements.

Thanks to this, replacing a damaged mount with the presented component allows for restoring the proper operation of the antenna system without the need to modify the installation. This solution is particularly beneficial for workshops specializing in the Mercedes brand and users who want to maintain the technical consistency of the vehicle.

Used condition and cost-effectiveness

The item is offered in a used condition, which allows for a significant reduction in repair costs compared to a new component, while maintaining the original manufacturer's specifications. In the case of antenna mounts, where fitment and tightness are key, a used OEM element often performs better than replacements with uncertain geometry.

If you want to better understand how to optimize service costs while maintaining the appropriate quality of parts, it is worth checking out the guide on our blog: Rising repair costs and the boom in used parts – how to save on car service?.

Expanding the antenna system in a Mercedes

If you are planning a comprehensive repair or upgrade of the rear body zone in your Mercedes and need other elements from the same group, such as antenna bases, feet, or additional brackets, check out the available parts in the Mercedes car antennas category.