Audi A6 C7 Tailgate Boot Trunk Rear Lid Control Module ECU Unit 4G9959107C

Audi A6 C7 Tailgate Boot Trunk Rear Lid Control Module ECU Unit is a factory-original component from the Electronic control modules and controllers group, designed to manage the operation of the tailgate in your Audi. It is responsible for precise control of the opening and closing mechanism, communication with the vehicle's electrical system, and integration with other comfort systems.

Specifications and technical data

• SKU: 4G9959107C
• Mark: Audi
• Condition: Used
• OEM Part Number: 4G9959107C
• Substitutable numbers: 4G9959107C, 4G9 959 107 C
• Location on the vehicle: Rear
• Part type: Door Control Unit
• Category: ECUs & Computer Modules

Purpose and function of the module

The Audi A6 C7 Tailgate Boot Trunk Rear Lid Control Module ECU Unit is dedicated for installation in the rear of the vehicle, where it supervises the operation of the actuators, the latch, and the tailgate position sensors. As an electronic component integrated with the body electrical system, it is responsible for:

• proper opening and closing of the tailgate,
• monitoring signals from buttons and switches,
• cooperation with safety and comfort systems,
• communication with other vehicle control units via the data bus. Thanks to this, the trunk system operates in a predictable and stable manner, and the vehicle remains convenient for daily use.

Benefits of using an original Audi module

The original control unit from the Electronic control modules and controllers group ensures compatibility with the Audi A6 C7 electrical architecture, without the need for wiring modifications or software interference beyond standard service adaptation. The main advantages include:

• maintaining the factory logic of the tailgate operation,
• consistency with the specific vehicle's equipment configuration,
• easier diagnostics using Audi service testers,
• stable operation over a long service life. Choosing such a module is particularly beneficial for post-collision repairs, replacing damaged electronics, or addressing issues with improper tailgate operation.

Installation and operational characteristics

The controller is designed for installation in the rear body zone, in the immediate vicinity of the tailgate wiring. This placement limits the length of signal and power cables, which promotes stable system operation. The module works with factory Audi connectors, which facilitates:

• removal of the old unit and installation of the replacement,
• maintaining original wiring routing,
• minimizing the risk of installation errors. After installation, it is recommended to perform diagnostics and, if necessary, adapt parameters using appropriate service software to ensure proper communication with other vehicle control units.

Why consider a used control module

Used automotive electronics, such as tailgate controllers, can be a reasonable cost-effective solution, provided they are properly selected and verified. A correctly chosen module allows you to restore full functionality of the tailgate without the need to invest in a new part. To better understand the principles of selecting and evaluating such components, it is worth reading our guide: A second life for electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?

Expanding the control system in your Audi

If you are planning a comprehensive repair or upgrade of the rear zone in your Audi and need other components from the same group, such as additional control units, body modules, or lighting management systems, check the available parts in the Audi Electronic control modules and controllers category.

Summary

Audi A6 C7 Tailgate Boot Trunk Rear Lid Control Module ECU Unit is a solution designed for users who want to restore the proper operation of the tailgate while maintaining the factory logic of the system. A properly selected and correctly installed module ensures predictable trunk control, consistency with the rest of the vehicle's electronics, and comfort in daily use.