Audi A4 B9 LED Headlight Headlamp Control Unit Module Front Left N/S 1305715345

Audi A4 B9 LED Headlight Headlamp Control Unit Module Front Left N/S is a specialized component from the Electronic control modules and drivers group, responsible for the precise management of the driver-side front LED lamp. It enables stable lighting operation, supports correct light beam distribution, and ensures the consistency of the vehicle's electrical system.

Specifications and technical data

• SKU: 1305715345
• Mark: Audi
• Condition: Used
• OEM Part Number: 1305715345
• Substitutable numbers: 1305715345, 130 571 534 5
• Location on the vehicle: Front, Left
• Category: ECUs & Computer Modules

Purpose and function of the control unit

The presented module is dedicated to the front lighting system of the Audi A4 B9 generation, on the left side. Its task is to control the operating parameters of the LED headlight, such as light intensity, response to signals from the vehicle's electrical system, and cooperation with other body electronics components.

Its placement in the front left zone means the control unit works directly with the driver-side lamp, which is crucial for night driving safety and the proper operation of low and high beam lights in this area.

Benefits of using an original Audi module

The original Audi electronic control module ensures:

• High electrical compatibility with the vehicle's factory installation, without the need for harness modifications.
• Stable cooperation with onboard systems responsible for lighting and signaling.
• Proper mechanical fitment to the housing of the left-side LED headlight.

Thanks to this, the module can be used both when replacing a damaged control unit and during lighting system repairs where maintaining factory headlight operating parameters is required.

Product characteristics and installation

The element belongs to the Electronic control modules and drivers group, meaning it is an integral part of the vehicle's lighting management system. As a used component, it comes from disassembly and is intended for reinstallation in a compatible Audi A4 B9 with a left-side LED headlight.

When selecting a control unit, it is worth paying attention to:

• compatibility with the LED headlight version used in the specific vehicle model,
• correct placement on the vehicle – front, left side,
• proper assignment to the vehicle's electrical system during installation.

In many cases, installation is performed in a plug-and-play manner; however, it is recommended that installation work be carried out by an automotive electrician or a service center with experience in Audi electronics, which minimizes the risk of errors and ensures proper calibration of the lighting system.

Application of a used control module

Choosing a used LED headlight control unit is often a cost-effective solution, allowing for the restoration of full lighting functionality while maintaining factory component quality. Such modules are frequently used in post-accident repairs, in cases of lamp electronics damage, or when a failure of the left-side light control has occurred.

To better understand when it is worth opting for used electronic components, such as light controllers, comfort modules, or sensors, it is worth reading the guide: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?

Expanding the electronics system in an Audi

If you are planning a comprehensive repair or upgrade of the front lighting zone in your Audi and need other elements from the same group, such as additional control modules, light controllers, or lighting management systems, check the available parts in the Audi electronic control modules and drivers category.

For drivers considering wider use of used electronics in their car, including ECU modules and sensors, the following practical guide may also be helpful: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?