Mercedes W205 W217 W447 Keyless Go Antenna Entry Aerial Control Unit A2179057001

Mercedes W205 W217 W447 Keyless Go Antenna Entry Aerial Control Unit is a specialized component from the Car antennas category, responsible for handling keyless entry in selected Mercedes models. It enables proper communication between the key and the vehicle, ensuring convenient opening and starting of the car without the use of a traditional lock.

Specifications and technical data

• SKU: A2179057001
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2179057001
• Substitutable numbers: A2179057001, A 217 905 70 01
• Category: Antennas

Purpose and function of the module

The presented antenna module is designed for the Keyless Go system in Mercedes W205, W217, and W447 series vehicles. It is responsible for receiving and transmitting the radio signal from the key to the comfort system, which allows for automatic recognition of the key's presence near the vehicle or inside the cabin. A properly functioning antenna is crucial for the stable operation of the keyless opening and engine start functions.

Benefits of using an original module

Using an original antenna module in the Keyless Go system ensures:

• consistent cooperation with the vehicle's factory electronics,
• properly selected operating parameters in terms of frequency and reception sensitivity,
• reduced risk of interference in communication with the key,
• maintenance of the comfort system's functionality in accordance with the manufacturer's specifications.

Thanks to this, the driver receives stable operation of the keyless system without the need for additional installation modifications.

Characteristics and installation

The module belongs to the Car antennas group, which means it is an installation component responsible for radio signal transmission in the vehicle. Installation involves connecting the module to the existing electrical harness in the location provided by the manufacturer for the given model. In practice, this most often requires removing selected upholstery elements or covers, but the replacement itself is a standard service operation.

Due to the specifics of the Keyless Go system, it is recommended that the installation be performed by a person with experience in Mercedes vehicle electronics, which will help avoid problems with coding or errors in the comfort system.

Product condition and practical application

The offered module comes from the secondary market, which allows for an economical repair of the Keyless Go system while maintaining the manufacturer's original design. This is a particularly beneficial solution in the event of an antenna failure manifesting as problems with key recognition, the need to bring the remote very close to the bodywork, or intermittent lack of system response.

The selection of the correct module should always be based on compliance with the manufacturer's markings and the specific vehicle equipment version. In case of doubt, it is worth verifying compatibility based on the VIN or by consulting a service specializing in the Mercedes brand.

Support in choosing a used part

When deciding to use a component from the secondary market, it is worth considering both the cost and technical aspects. A detailed discussion of the differences between new and used parts, along with an analysis of durability and cost-effectiveness, can be found in the article: Car parts – new or used? We compare costs, quality, and durability.

If you are planning a comprehensive repair or upgrade of the comfort and keyless entry zone in your Mercedes and need other components from the same group, such as receiver modules, additional antennas, or signal installation elements, check the available parts in the Mercedes car antennas category.