Mercedes W177 Horn Signal Front Left Side N/S 420Hz Siren Signal A2475403206

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W177 Horn Signal Front Left Side N/S 420Hz Siren Signal is an original warning system component, specifically designed for installation in the front left side of the vehicle body. The precisely selected 420 Hz frequency ensures a clear, audible signal, enhancing driving safety in both urban traffic and on the road. It is a practical solution for drivers who want to maintain the factory sound characteristics and full compatibility with their vehicle's electrical system.

Specifications and technical data

• SKU: A2475403206
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2475403206
• Substitutable numbers: A2475403206, A 247 540 32 06
• Location on the vehicle: Front, Left
• Category: Horns

Function and application of the horn

The horn in Mercedes W177 models is responsible for generating a warning signal with the appropriate volume and tone, in accordance with manufacturer requirements and traffic regulations. The presented horn operates at a frequency of 420 Hz, which results in a clear, focused tone that cuts through ambient noise effectively. Its placement in the front left zone ensures proper sound projection in front of the vehicle.

Construction and vehicle fitment

The offered item from the Horns category has been designed as a factory-installed part for Mercedes vehicles, ensuring full compatibility with mounting points, the electrical harness, and system operating parameters. Installation in the front-left position allows for seamless fitting into the original mounting point, without the need for modifications or adaptations. Such precise fitment reduces the risk of malfunction and facilitates future maintenance.

Acoustic parameters and user comfort

The 420 Hz frequency provides a characteristic, focused tone that is easily recognizable by other road users. As a result, the signal is:

• loud enough to draw attention in emergency situations,
• balanced enough not to cause excessive acoustic discomfort,
• consistent with the factory sound characteristics used in Mercedes vehicles.

These carefully selected acoustic parameters support both safety and daily driving comfort.

Product characteristics and condition

The presented horn is an original Mercedes component, sourced from dismantling, which allows for maintaining factory fitment to the vehicle's installation. A used part of this class is an excellent choice for drivers who want to restore full functionality to the signaling system without compromising the original manufacturer specifications. Using parts from the same construction group minimizes the risk of electrical and mechanical compatibility issues.

Expanding the signaling system and related components

If you are planning a comprehensive repair or upgrade of the front bumper area in your Mercedes and need other elements from the same group, such as additional horns, mounting brackets, or power harnesses, check out the available parts in the Mercedes Horns category.

More information on choosing used parts

If you want to better understand how to consciously select original used components for popular car models and what to look for when purchasing items such as horns, it is worth reading our guide: The best used car parts – a guide to the most frequently chosen original parts.