Roof Antenna Mercedes W204 Aerial Shark Navigation Becker Map Pilot A2049055904

The Mercedes W204 Roof Antenna for Radio and Navigation is an original part from the car antennas category, designed for installation on the roof of vehicles in this series. It ensures stable radio signal reception and compatibility with the factory navigation system, maintaining consistency with the electrical system and the styling of the Mercedes bodywork.

Specifications and technical data

• SKU: A2049055904
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2049055904
• Substitutable numbers: A2049055904, A 204 905 59 04
• Category: Antennas

Purpose and Function of the Roof Antenna

The roof antenna for radio and navigation for Mercedes W204 is responsible for receiving FM/AM radio waves and the signal for the navigation system, operating in an optimal position on the vehicle's roof. Placement at the highest point of the bodywork minimizes interference and improves reception stability, which translates to clear audio in the sound system and more reliable navigation performance.

The component is designed as part of the factory installation, ensuring it works with original wiring harnesses and Mercedes multimedia modules, without the need for additional adapters or modifications.

Advantages of Using an Original Mercedes Antenna

Using an original roof antenna in the W204 model allows for the preservation of parameters intended by the vehicle manufacturer. In practice, this means:

• compatibility with the factory radio and navigation system,
• antenna operating characteristics appropriately matched to the W204 body,
• correct electrical matching to the head unit and comfort modules,
• no interference with the installation – mounting in the factory location.

Thanks to this, the Mercedes multimedia system retains its functionality, and the risk of range issues or interference is reduced compared to universal replacements.

Condition of the Part and Installation Aspects

The antenna is a used part, allowing for economical repair of the radio-navigation system while maintaining the original construction. This is a particularly beneficial solution in cases of mechanical damage (e.g., after an automatic car wash, hail, or third-party interference), when a complete roof component replacement is necessary.

The antenna is designed for installation in the factory mounting point on the W204 roof. With proper removal of the old component and maintaining the roof lining's seal, installation proceeds in an orderly manner and does not require bodywork modifications. It is worth paying attention to:

• correct routing of wires inside the headliner,
• checking the seal at the roof penetration point,
• secure tightening of the mount from the interior of the vehicle.

Why Choose a Roof Antenna for Mercedes W204

Choosing an original roof antenna for the W204 is a solution that combines technical fit with reasonable operating costs. The factory geometry and antenna characteristics are adapted to the body of this model, which is important for both reception quality, aerodynamics, and the vehicle's appearance.

If you are looking for other Mercedes car antennas for your vehicle, check out our dedicated category: Mercedes car antennas. There you will find a wide selection of roof and body components designed for various models of this brand.

More Technical Tips

When modernizing or repairing the antenna system, it is worth taking a broader look at the overall condition of the car, including the cooling system, which operates under particularly demanding conditions during the summer. You can read about the impact of high temperatures on components and how to reasonably use used parts in the guide: Summer Heat vs. Cooling System: Used Radiators and Fans Guarantee Savings.