Audi A4 B8 Rear Comfort Convenience Module Control Unit ECU 8K0907064HM

The Audi A4 B8 Rear Comfort and Convenience Module is a specialized electronic control unit from the Electronic Control Units and Controllers group, designed for the rear of the vehicle. Manufactured by the vehicle's producer, it ensures consistent operation of comfort systems, stable communication with the electrical system, and predictable behavior of onboard systems.

Specifications and technical data

• SKU: 8K0907064HM
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0907064HM
• Substitutable numbers: 8K0907064HM, 8K0 907 064 HM
• Location on the vehicle: Rear
• Category: ECUs & Computer Modules

Purpose and Function in the Vehicle

This rear comfort module for Audi is responsible for controlling selected functions in the rear body zone, working in conjunction with other controllers within the car's electrical architecture. Its placement in the rear of the vehicle allows for shorter wiring harnesses, reduced signal loss, and more precise management of electrical loads.

Through integration with the communication bus, the module transmits and receives signals from other controllers, leading to cohesive operation of comfort, safety, and convenience systems. This solution is designed for stable performance under conditions typical for the rear of the vehicle.

Advantages of Using an Original Audi Module

An original controller from this group ensures:

• factory-perfect fit for the electrical system and electronic architecture of Audi,
• software consistency with other controllers in the vehicle,
• maintenance of the manufacturer-specified operating parameters for comfort systems,
• no need for modifications to wiring or connectors when the module is correctly selected.

Choosing an original electronic control unit is particularly important in modern vehicles, where many comfort and safety functions are closely interconnected programmatically.

Characteristics of a Used Controller

This component comes from a used vehicle, meaning it is a pre-owned part that retains its original construction and intended purpose. For this type of component, correct matching by OEM number and interchangeable part numbers, as well as compatibility of hardware and software versions with the specific car configuration, are crucial.

Before installation, it is recommended to verify compatibility using the vehicle's VIN and consult with a diagnostic technician or automotive electrician to ensure proper integration with the existing controller network and avoid software conflicts.

Selection, Installation, and Integration with the System

When selecting a rear comfort module, it is worth paying attention to:

• compatibility with the Audi A4 B8 body generation,
• its intended installation in the rear of the vehicle,
• consistency of markings with the currently installed controller.

The installation itself requires careful handling of wiring harnesses and adherence to power disconnection and connection procedures typical for automotive electronics work. After installation, the module may require adaptation or coding using an appropriate diagnostic tester, in accordance with Audi's service procedures.

If you are planning a comprehensive repair or upgrade of the comfort electronics area in your Audi and need other components from the same group, such as door controllers, body modules, or other equipment management units, check the available parts in the Audi Electronic Control Units and Controllers category.

Technical Support and Expert Knowledge

To further understand the specifics of used comfort controllers, OEM number selection, and safe installation principles, it is recommended to consult the practical guide from Global Parts: Used Automotive Electronics Onboard – Why Choose Second-Hand ECU Modules and Sensors?. You will find information on compatibility, typical installation procedures, and answers to the most common questions regarding onboard electronics.

If you are considering the choice between a used controller and an aftermarket replacement, the material explaining the differences between these solutions may also be helpful: 5 Reasons Why a Used OEM Part is a Better Choice Than an Aftermarket Replacement. This provides practical support for making purchasing decisions for advanced electronic components.