Audi S3 8Y 2.0 TFSI DNFB Quattro Rear Axle Differential TUJ 0CQ525010R WARRANTY

Listing details

The differential is sold with a 90-day warranty! It was tested before removal and is in full working order.

Audi S3 8Y 2.0 TFSI DNFB Quattro Rear Axle Differential TUJ is a factory drivetrain component from the Differentials category, designed for installation on the rear axle in Quattro versions. The original design ensures proper torque distribution between the wheels, stable vehicle handling, and predictable behavior during dynamic driving. This is a solution for users who expect consistency with factory specifications and wish to maintain the characteristic driving properties of the S3 8Y model.

Specifications and technical data

• SKU: 0CQ525010R
• Mark: Audi
• Condition: Used
• OEM Part Number: 0CQ525010R
• Substitutable numbers: 0CQ525010R, 0CQ 525 010 R
• Location on the vehicle: Rear
• Category: Differentials

Purpose and function in the drivetrain

The presented rear axle differential is a drivetrain component responsible for transferring power to the rear axle in the Quattro system. The vehicle location specified as Rear means that the component works with the driveshaft and half-shafts, ensuring:

• controlled torque distribution between the left and right wheels,
• traction stability during acceleration and cornering,
• consistent operation with traction control and electronic stability systems.

By maintaining the original geometry and purpose, the differential allows for the preservation of the factory handling characteristics typical of the sporty S3 8Y version.

Benefits of using an original differential

Using an original rear axle differential in the Audi S3 8Y brings a number of practical operational benefits:

• Compatibility with the Quattro system – maintaining proper cooperation with other all-wheel-drive components.
• Appropriate gear ratios matched to the 2.0 TFSI DNFB unit, which translates into predictable acceleration and drivetrain refinement.
• Consistency with factory vehicle electronics settings and driver assistance systems.
• The ability to restore stock driving parameters after a failure or wear of the previous differential.

For users who expect repeatable, stable vehicle reactions, choosing an original component from this group is a safe and technically sound solution.

Installation characteristics and application

The rear axle differential is designed for installation in the rear part of the chassis, in place of the factory drivetrain assembly. The design intended for the Audi S3 8Y allows for maintaining:

• correct positioning relative to the suspension and half-shafts,
• proper cooperation with subframe mounts,
• compatibility with the stock driveshaft line.

Such a fit limits the need for modifications and facilitates service, which is particularly important for repairs performed in workshop conditions focused on efficient replacement of drivetrain components.

Condition of the component and practical application

The offered differential comes from the used components segment, which allows for an economical restoration of drivetrain efficiency while maintaining the original specification. This type of solution is often chosen in the case of:

• mechanical failure of the rear axle,
• excessive gear wear as a result of intensive use,
• post-accident repairs involving the rear part of the drivetrain.

For workshops specializing in all-wheel-drive models, this is a practical base for restoring full vehicle functionality while maintaining compliance with factory design assumptions.

Expanding knowledge and selecting the right differential

Selecting the right drive axle and differential for your driving style and drivetrain configuration requires an understanding of gear ratios, structural compatibility, and differences between individual versions. A detailed discussion of these issues, along with practical examples and answers to frequently asked questions, can be found in the article Dismantled drive axles and differentials – how to choose gear ratios for your driving style.

If you are planning a comprehensive repair or upgrade of the drivetrain area in your Audi and need other elements from the same group, such as additional differentials, drive axles, or related sub-assemblies, check the available parts in the Audi Differentials category.