Audi AQ5 FY Rear Differential Control Module Unit QMV 8W0907163

Audi AQ5 FY Rear Differential Control Module Unit QMV is a specialized, used module from the Electronic control modules and controllers group, designed for operation in the rear part of the drivetrain. Engineered by Audi, it ensures precise management of the rear differential, supporting vehicle stability, traction, and predictable handling in various road conditions.

Specifications and technical data

• SKU: 8W0907163
• Mark: Audi
• Condition: Used
• OEM Part Number: 8W0907163
• Substitutable numbers: 8W0907163, 8W0 907 163
• Location on the vehicle: Rear
• Category: ECUs & Computer Modules

Purpose and function of the rear differential control module

This control module is responsible for the electronic management of the rear differential in the Audi Q5 FY generation. Located in the rear area of the vehicle, it works in conjunction with sensors and other control units to:

• control torque distribution to the rear axle,
• support electronic stability control systems,
• react to changes in road surface grip,
• maintain consistent, predictable vehicle behavior during acceleration and cornering.

As a result, this electronic control module significantly impacts safety, driving comfort, and the efficient use of the drivetrain in daily operation.

Benefits of using an original Audi module

The original Audi rear differential control module is designed for the specific electrical and mechanical architecture of the vehicle, which translates into:

• high compatibility with factory installations and wiring harnesses,
• proper cooperation with other control units in the vehicle network,
• stable operating parameters over a long service life,
• the ability to maintain factory drivetrain characteristic settings.

A used OEM component is a solution that allows for reduced repair costs while maintaining the proper quality and fit for the specific vehicle configuration.

Vehicle placement and installation aspects

The controller is designed for installation in the rear part of the vehicle, in the immediate vicinity of the drivetrain. This placement shortens the signal path to the actuators and facilitates integration with sensors operating at the rear axle.

When replacing the module, it is worth paying attention to:

• proper connection of electrical connectors and their condition,
• sealing and protection against moisture and contaminants,
• the potential need for adaptation or coding in the vehicle according to Audi service procedures.

Professional installation and correct configuration are crucial to fully utilize the controller's capabilities and avoid errors in onboard systems.

Used condition – a conscious choice in automotive electronics

As a used electronic control module, this product represents an attractive alternative to a new component, especially for repairs of vehicles several years old. A properly selected and tested controller allows for the restoration of full drivetrain functionality without placing an excessive burden on the service budget.

If you want to better understand when choosing used electronics makes sense and what to look for when selecting such components, read our guide: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?

Drivetrain expansion and selection of other Audi modules

In vehicles with advanced all-wheel-drive systems, such as the solutions used by Audi, the rear differential controller works with other modules responsible for traction control, stability, and torque distribution. If you are interested in a broader context of how AWD systems work and the typical components that work with them, it is worth reading our analysis: xDrive, 4Matic, quattro or 4Motion – a comparison of AWD systems from BMW, Mercedes, Audi, and VW

If you are planning a comprehensive repair or upgrade of the electronic drivetrain control area in your Audi and need other components from the same group, such as drivetrain control modules, controllers working with the stability control system, or controllers responsible for torque distribution, check out the available parts in the Audi electronic control modules and controllers category.

Summary

Audi AQ5 FY Rear Differential Control Module Unit QMV is a dedicated, used OEM module responsible for the precise management of the rear differential. Thanks to its proper fitment to the vehicle's architecture, placement in the rear of the car, and integration with stability and traction systems, it is an important component ensuring safe, predictable, and comfortable driving in daily operating conditions.