Audi A4 B9 A5 F5 Keyless Entry Amplifier Control Box Module Antenna 4M0907247

Audi A4 B9 A5 F5 Keyless Entry Amplifier Control Box Module Antenna is a component from the Electronic control modules and controllers group, responsible for the proper operation of the vehicle's keyless entry and start system. The offered module comes from the original Audi line, which ensures proper fitment to the electrical installation and stable cooperation with the vehicle's factory electronics.

Specifications and technical data

• SKU: 4M0907247
• Mark: Audi
• Condition: Used
• OEM Part Number: 4M0907247
• Substitutable numbers: 4M0907247, 4M0 907 247
• Category: ECUs & Computer Modules

Function and application of the keyless entry antenna

The keyless entry antenna in Audi A4 B9 and A5 F5 models works with the comfort access and engine start system, responsible for receiving signals from the key fob or vehicle card. A properly functioning module allows for:

• secure recognition of an authorized key in the vicinity of the vehicle,
• stable communication with the central comfort control unit,
• consistent operation of the vehicle's opening, closing, and starting functions without the use of a traditional ignition switch.

Thanks to the design provided by the vehicle manufacturer, the antenna works with the factory electronic architecture, minimizing the risk of interference and communication errors in the vehicle's network.

Benefits of using an original Audi module

Using an original module from the Electronic control modules and controllers group in place of a damaged component allows for maintaining the consistency of the vehicle's configuration. Key advantages include:

• Full integration with the vehicle system – the antenna is designed for the specific Audi A4 B9 / A5 F5 platform, which facilitates adaptation in the vehicle.
• Appropriate operating characteristics – electrical and communication parameters are adjusted to the requirements of the factory keyless system.
• Possibility of using existing wiring and mounts – installation is carried out based on the original mounting points provided by the manufacturer.

Choosing an original used module is often a cost-effective solution while maintaining compliance with the factory vehicle specification.

Product characteristics and condition

The offered Audi A4 B9 A5 F5 Keyless Entry Amplifier Control Box Module Antenna belongs to the group of vehicle electronic components that operate continuously during daily use. As a used item, it comes from dismantling, which allows for the reuse of the original part in another vehicle. This type of solution is particularly attractive for comfort system repairs, where compliance with factory software and installation architecture is essential.

The module is intended for use in Audi vehicles equipped with a keyless system based on dedicated receiving antennas. This makes it possible to restore the correct operation of the vehicle's access and start functions after the failure of the original component.

Selection, compatibility, and technical aspects

When selecting a keyless entry antenna, it is crucial to match it to the specific vehicle configuration and ensure compatibility with the electronic system used. In practice, this means paying attention to:

• belonging to the appropriate model platform (A4 B9, A5 F5),
• compatibility with existing comfort controllers and the keyless system,
• proper connection to the vehicle's electrical installation.

To better understand the specifics of used electronic modules, the principles of their selection, and issues of hardware and software compatibility, it is worth reading the guide: Used automotive electronics – second-hand modules and sensors in practice. The article discusses, among other things, selection by identification numbers, typical installation scenarios, and the most frequently asked user questions.

System expansion and other Audi modules

If you are planning a comprehensive repair or upgrade of the comfort and safety systems in your Audi and need other elements from the same group, such as comfort controllers, body modules, or other vehicle electronic management units, check the available parts in the Audi electronic control modules and controllers category.

Such an approach allows for a consistent refresh of the entire electronic system responsible for comfort functions, which translates into stable system operation and reduces the risk of random communication errors in the vehicle's network.