Audi A4 B7 Alarm System Siren Anti-Theft Horn Signal 8L0951605A

Audi A4 B7 Alarm System Siren Anti-Theft Horn Signal is a component from the Horns category, designed to work with the factory alarm system of Audi vehicles. It generates a clear, characteristic acoustic signal, increasing the vehicle's security level and the clarity of alarm notifications for the surroundings. By maintaining the original OEM design, the siren ensures a proper fit with the vehicle's electrical installation and architecture.

Specifications and technical data

• SKU: 8L0951605A
• Mark: Audi
• Condition: Used
• OEM Part Number: 8L0951605A
• Substitutable numbers: 8L0951605A, 8L0 951 605 A
• Category: Horns

Purpose and function in the vehicle

The alarm siren in an Audi is responsible for acoustic notification of a breach in the vehicle's security zone, such as opening a door, the trunk lid, or an unauthorized start attempt. A properly functioning alarm signal is essential both from a security perspective and for user comfort, as it informs the owner and the surroundings of a potential threat.

This component from the Horns category works with the alarm control module, utilizing factory wiring harnesses and connectors. This ensures compatibility with the original security system logic, including arming, disarming, and any warning signals when locking or unlocking the vehicle.

Technical and installation characteristics

The alarm siren is designed as an OEM part, meaning its housing, connectors, and electrical parameters are tailored to the vehicle manufacturer's requirements. The factory design facilitates installation in the designated body location without the need for installation modifications or the use of adapters. In practice, this translates to shorter service time and a lower risk of installation errors.

The element has an assigned OEM part number and associated interchangeable numbers, which allows for precise identification in service catalogs and parts selection systems. This makes it easy to verify the siren's compatibility with a specific equipment version and vehicle model year, minimizing the risk of selecting an incorrect component.

Condition, origin, and benefits of use

The offered alarm siren is a used component, sourced from dismantling, which allows for a reasonable cost while maintaining the manufacturer's original specifications. Compared to non-factory replacements, the OEM part ensures consistency of electrical parameters, proper mechanical fit, and predictable behavior within the vehicle's alarm system.

Using an original alarm signal is particularly beneficial when you want to:

• maintain the factory functionality of the security system,
• avoid communication errors with the vehicle's electronics,
• preserve the appropriate volume level and sound characteristics,
• reduce repair costs by choosing a used OEM part.

Integration with the vehicle system and parts selection

The alarm siren works with the Audi electrical system based on factory connectors and control parameters, allowing it to operate in plug-and-play mode after correct installation, without the need for additional configuration. Correct selection of the part number and interchangeable numbers is crucial for maintaining full compatibility with a specific vehicle equipment version.

If you are planning a comprehensive repair or upgrade of the acoustic signaling zone in your Audi and need other elements from the same group, such as horns, control modules, or additional alarm units, check out the available parts in the Audi Horns category.

Additional information and technical support

When selecting used OEM components for security systems, it is worth paying attention to part number compatibility, equipment version, and the vehicle's repair history. For more extensive work related to body repair after a collision and replacing components sourced from dismantling, practical service tips and application examples may be helpful.

More information on the safe use of parts from dismantling in post-accident repairs can be found in the article Bodywork and chassis – post-accident repairs using parts from dismantling, which discusses best practices, procedures, and the most frequently asked user questions.