Mercedes SLK R170 Horn Signal Siren Fanfare Hella 400Hz A0045425320

The Mercedes W168 400Hz Horn Signal A0045425320 is an original warning system component, specifically designed for Mercedes W168 family models. The precisely selected 400 Hz frequency ensures a clear, audible signal, enhancing road safety. This is the ideal solution for users seeking compliance with factory standards, robust construction, and reliable acoustic system performance.

Specifications and technical data

• SKU: A0045425320-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0045425320
• Substitutable numbers: A0045425320, A 004 542 53 20
• Category: Horns

Technical Characteristics of the 400 Hz Horn

The 400 Hz frequency horn generates a distinct, piercing sound that cuts through ambient noise. This type of signal is typically used in premium vehicles, as it provides clear warnings to other road users while remaining compliant with homologation requirements. The horn's construction is optimized for stable operation under typical vehicle operating conditions – including varying temperatures, humidity, and exposure to road debris.

Purpose and Application in Mercedes W168

The Mercedes W168 400Hz Horn Signal A0045425320 was developed as an acoustic system component for Mercedes' compact segment vehicles. Its purpose is to quickly and unambiguously inform others of the driver's maneuvers, thereby improving active safety. Using an original component from this range ensures electrical and acoustic parameter consistency with the vehicle's factory installation, minimizing the risk of interference or improper signaling system operation.

Benefits of Using an Original Horn

Choosing a horn from this series offers primarily compatibility with the electrical system and predictable performance during operation. The component is designed for an appropriate loudness level, sound characteristics, and response time after the signal is activated by the steering wheel button. This ensures consistent operation of the entire system for the driver, without the need for modifications to wiring harnesses, relays, or mounting points. Using a component of this caliber also helps optimize service costs while maintaining parameters close to factory specifications.

Component Condition and Installation Aspects

The offered horn comes from the Horns category and is intended for reinstallation in a vehicle after verifying its compatibility with the specific car configuration. In practice, installation typically involves connecting the power wires and securely mounting it in the location designated by the vehicle manufacturer, which simplifies servicing and reduces replacement time. Using an original component from this range minimizes the risk of improper fit or the need for custom brackets.

Expanding the Signaling System and Selecting Other Horns

If you are planning a comprehensive repair or upgrade of the signaling system in your Mercedes and require other components from the same range, such as additional sound signals, horns with different frequencies, or supplementary acoustic modules, please check the available parts in the Mercedes Horns category.

More About Using Used Components

Individuals looking to consciously optimize service costs while maintaining an appropriate level of safety and functionality can benefit from practical advice on selecting used components. In this context, it is worth reading the guide Tuning with Used Parts – How to Gain Performance Without Losing a Fortune, which discusses the principles of safely using pre-owned car parts.