Mercedes W220 Front Door Keyless Entry Antenna Right O/S Side A2208200275

Mercedes W220 Front Door Keyless Entry Antenna Right O/S Side is a component from the Electronic control modules and controllers group, responsible for reliable communication between the keyless entry system and the vehicle key. Mounted in the front right door, the antenna works with the factory comfort system, ensuring convenient opening and locking of the car without the use of a traditional key.

Specifications and technical data

• SKU: A2208200275
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2208200275
• Substitutable numbers: A2208200275, A 220 820 02 75
• Location on the vehicle: Front, Right
• Category: ECUs & Computer Modules

Function of the keyless antenna in the Mercedes W220

Keyless antennas in the doors are responsible for precisely detecting the presence of the key in the immediate vicinity of the vehicle. The presented antenna, designed for installation on the front right side, works with the comfort module, enabling:

• unlocking and locking the vehicle upon approaching with the key,
• stable radio communication in the area of the right front door,
• proper operation of the keyless entry function in daily use. Thanks to its dedicated placement, the antenna provides adequate range and sensitivity, which translates into convenience of vehicle operation and reduces issues with key recognition in this part of the bodywork.

Electronic control modules and controllers in the comfort system

The keyless system in a Mercedes is based on the cooperation of several electronic elements – antennas, controllers, and comfort modules. The described antenna is one of the components of this network, and its proper operation affects:

• consistency of communication between the key and the vehicle,
• system response time when opening and closing doors,
• overall functionality of the keyless entry system. Replacing a faulty antenna with a functional element from the same group allows for restoring the correct operation of the system without the need to interfere with other electronic control modules and controllers.

Vehicle placement and installation aspects

The presented antenna is intended for installation in the front right door area. Such placement ensures optimal signal reception in this zone of the bodywork and is consistent with the factory design of the keyless system component layout in the Mercedes S-Class W220 generation. During installation, it is important to maintain proper routing of the wiring harness and correctly connect the connector to the vehicle's installation. This allows the antenna to fully cooperate with the existing electronic architecture without the need for additional modifications.

Characteristics of the used product

The offered antenna comes from dismantling and is a used element, which allows for an economical repair of the comfort system while maintaining compliance with Mercedes factory solutions. Choosing an original component from the secondary market is often a reasonable alternative to new parts, especially in the case of specialized body electronics components. Before installation, it is recommended to verify compatibility with the specific vehicle equipment version and check the electrical installation to ensure stable operation of the entire keyless system after replacement.

Expanding the electronics system in a Mercedes

If you are planning a comprehensive repair or upgrade of the comfort and keyless entry zone in your Mercedes and need other elements from the same group, such as comfort modules, door controllers, or additional keyless system elements, check the available parts in the Mercedes electronic control modules and controllers category. More practical tips on selecting and operating used automotive electronics – including controllers, comfort modules, and parking sensors – can be found in the article A second life for electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?, which will help you consciously plan the repair of electronic systems in your car.