Audi A8 D4 4H Front Seat Backrest Control Module Unit ECU 4H0907182H

Audi A8 D4 4H Front Seat Backrest Control Module Unit ECU is a component from the Electronic control modules and controllers group, responsible for the precise management of front seat settings in your Audi. It enables the saving and recalling of programmed seat, backrest, and other function positions, which translates into comfort for the driver and passenger, as well as consistent operation of interior comfort systems.

Specifications and technical data

• SKU: 4H0907182H
• Mark: Audi
• Condition: Used
• OEM Part Number: 4H0907182H
• Substitutable numbers: 4H0907182H, 4H0 907 182 H
• Location on the vehicle: Front
• Category: ECUs & Computer Modules

Purpose and function of the controller

The presented seat memory controller is designed for installation in the front part of the vehicle, where it works with the seat electrical system and the car's communication bus. Its task is to handle the seat memory function so that after selecting the appropriate profile, the seat position is automatically adjusted to the saved parameters. Thanks to this, daily use of the car becomes more comfortable, and changing drivers does not require manual seat adjustment every time.

Benefits of using an original module

Using an original controller dedicated to Audi allows for maintaining full integration with the vehicle's factory systems. This means:

• proper cooperation with seat adjustment buttons and memory panels,
• consistent operation with other interior comfort systems,
• preservation of the factory logic of the memory function,
• minimization of the risk of communication errors in the car's electronic network.

For the user, this translates into stable operation of the seat adjustment system and convenient use of saved profiles, without the need for additional adaptation of non-factory solutions.

Installation characteristics and vehicle integration

The front seat memory controller is structurally prepared to work in the factory environment of the Audi A8 D4 generation. Its placement in the front zone allows for a direct connection to the seat wiring harness and the main vehicle installation. In practice, this means:

• matching connectors to the original electrical harness,
• preservation of the system architecture intended by the manufacturer,
• easier diagnostics using standard service tools.

Thanks to this, the module can be integrated into the existing system without the need to modify the installation, which is important both from the point of view of reliability and subsequent service maintenance.

Product condition and practical application

The item comes from the secondary market, which allows for an economical restoration of the full functionality of the seat memory system while maintaining the manufacturer's original specifications. In case of problems with saving or recalling seat positions, replacing the controller with a functional unit from the same group can be an effective solution, especially when diagnostics indicate a fault within the electronic module.

To select the appropriate controller for a specific car, it is worth using the manufacturer's markings and vehicle data, which facilitates maintaining full hardware and software compatibility.

Technical support and selection of used electronics

When choosing a used controller from the Electronic control modules and controllers group, it is crucial to pay attention to compatibility with the vehicle configuration and proper selection based on manufacturer markings. A detailed discussion of selection rules, compatibility issues, and practical aspects of installation can be found in the guide: Used automotive electronics – second-hand ECU modules and sensors.

If you are planning a comprehensive repair or modernization of the interior zone and comfort system in your Audi and need other elements from the same group, such as comfort controllers, seat modules, or electrical equipment management units, check the available parts in the Audi electronic control modules and controllers category.