Audi A3 8V Rear Door Control Module Unit ECU Left Right N/O/S 5Q0959595K

Audi A3 8V Rear Door Control Module Unit ECU Left Right is an element from the Electronic control modules and controllers group, designed to operate the electrics of the rear doors in the Audi A3 8V generation model. It enables the proper operation of comfort functions and the control of windows and locks on the left and right sides of the rear part of the vehicle, serving as a precisely matched component for the factory installation.

Specifications and technical data

• SKU: 5Q0959595K
• Mark: Audi
• Condition: Used
• OEM Part Number: 5Q0959595K
• Substitutable numbers: 5Q0959595K, 5Q0 959 595 K
• Location on the vehicle: Rear, Right, Left
• Category: ECUs & Computer Modules

Purpose and function of the module

The presented controller is dedicated to operation in the rear doors on the left and right sides, in accordance with the assigned placement on the vehicle. It is responsible for communication between the door electrical system and the main vehicle network, ensuring stable operation of mechanisms such as lock actuators, window regulators, or comfort elements for rear seat passengers.

Thanks to a design consistent with Audi factory standards, the module works with the original electrical harness and the car's electronic architecture, which facilitates installation and reduces the risk of compatibility issues.

Benefits of using an original door controller

Using a door controller dedicated to the Audi A3 8V allows for maintaining the consistency of the vehicle's electronic system. Proper matching to the model platform translates into:

• proper communication with other body modules,
• stable operation of comfort functions in the rear doors,
• reduced risk of diagnostic errors related to improper part selection,
• easier configuration and maintenance during service.

An element from this group is particularly important during post-collision repairs, replacing damaged harnesses, or solving problems with electric window and lock control in the rear part of the vehicle.

Product characteristics and installation

The module belongs to the Electronic control modules and controllers category, which means it is an integral part of the body function management system. As a component intended for installation in the rear doors on both sides of the vehicle, it is designed to work in conditions typical for this zone – near window mechanisms, locks, and door seals.

When replacing, it is recommended to:

• compare the removed element with the newly installed one in terms of connectors and housing shape,
• use proper procedures for disconnecting and connecting the electrical system,
• perform diagnostics after installation to verify communication with other vehicle controllers.

Selection of a used module and purchase safety

When choosing a used door controller for an Audi, it is worth paying attention to compatibility with the vehicle platform and ensuring it comes from the same construction group. Proper selection of the element allows for reducing repair costs while maintaining functionality similar to the part factory-installed in the car.

If you want to better understand when choosing used electronics is justified and how to approach the selection of such elements as comfort modules or controllers, read the article The second life of electronics – when is it worth choosing used controllers and modules in a car.

Additional practical tips on safely buying used car components online, including electronic body elements, can be found in the guide Safe purchase of used car parts online – a step-by-step guide.

Expanding the Audi door electronics system

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

Summary

Audi A3 8V Rear Door Control Module Unit ECU Left Right is a dedicated element of the electronic system that allows you to restore or maintain the proper operation of rear door functions in your car. Properly selected and correctly installed, it provides a solid foundation for further diagnostics and vehicle operation, supporting the stability of the entire comfort system in the rear part of the cabin.