Audi A4 S4 B7 Horn Sound Signal Fanfare Alarm High Tone Siren 8E0951223A

Audi A4 S4 B7 Horn Sound Signal Fanfare Alarm High Tone Siren is an original warning system component, designed specifically for Audi vehicles. The precisely tuned acoustic characteristics ensure a clear, high-pitched tone that improves signal clarity on the road and supports the alarm system's operation. This used OEM component is a sensible choice for drivers looking for a cost-effective yet technically compatible solution.

Specifications and technical data

• SKU: 8E0951223A
• Mark: Audi
• Condition: Used
• OEM Part Number: 8E0951223A
• Substitutable numbers: 8E0951223A, 8E0 951 223 A
• Category: Horns

Purpose and function of the horn

The presented sound signal serves a dual role: it acts as a high-tone horn responsible for clearly warning other road users and as a component that works with the vehicle's alarm system. The high tone is easily recognizable in city traffic and on the road, which increases safety in road communication.

The element belongs to the Horns category, i.e., components responsible for generating a warning signal in accordance with the manufacturer's factory standards. Using an original solution allows for maintaining the correct volume and sound frequency parameters, which is important both for warning effectiveness and compliance with homologation requirements.

Advantages of using an original Audi horn

Using a factory sound signal in the Audi alarm and warning system translates into a number of practical benefits:

• Full electrical compatibility with the vehicle's installation, without the need for harness modifications or additional adapters.
• Stable acoustic characteristics – a high, clear tone that cuts through ambient noise effectively.
• Consistency with the factory alarm system, which reduces the risk of errors in diagnostics and communication with control modules.
• Proper fit of mounts, facilitating installation in the location intended by the manufacturer.

Thanks to maintaining the original design, the horn works with the vehicle's existing security features, which is essential when servicing modern electronic systems.

Performance characteristics and installation

The used sound signal from this series is a good choice for maintenance repairs when the existing horn has suffered mechanical damage, corrosion, or loss of proper volume. Installation typically involves connecting to the factory harness and mounting it at the designated body point, which reduces workshop labor time.

In practice, this means:

• no need for electrical system modifications,
• maintaining proper cooperation with the steering wheel horn button and the alarm system,
• the ability to quickly verify operation after installation using standard service procedures.

The used component allows for optimizing repair costs while maintaining the factory logic of the warning system.

Part selection and vehicle compatibility

When selecting a horn for a specific Audi vehicle, it is crucial to compare the markings with the vehicle documentation or the removed part. This model was designed as an original equipment part, which is why it will work particularly well in cars where maintaining the factory configuration of the alarm and sound signal system is a priority.

If you are considering whether a refurbished part or a used original is a better solution in your case, an article describing the differences between these repair approaches may be helpful – you can find it here: Refurbished or used original – which part to choose for repairs?.

Expanding the Audi signal system

If you are planning a comprehensive repair or upgrade of the signal and alarm zone in your Audi and need other elements from the same group, such as additional low-tone signals, control modules, or mounting brackets, check the available parts in the Audi Horns category.