Audi A3 S3 8V 2.0 TFSI Quattro Rear Axle Differential RUR 0CQ525010K WARRANTY

Listing details

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

Audi A3 S3 8V 2.0 TFSI Quattro Rear Axle Differential RUR is an original drivetrain component from the Differentials category, designed for installation on the rear axle of Audi vehicles with Quattro all-wheel drive. This solution ensures the correct torque transmission characteristics and stable vehicle handling in various road conditions.

Specifications and technical data

• SKU: 0CQ525010K
• Mark: Audi
• Condition: Used
• OEM Part Number: 0CQ525010K
• Substitutable numbers: 0CQ525010K, 0CQ 525 010 K
• Location on the vehicle: Rear
• Category: Differentials

Purpose and function in the drivetrain

The presented rear differential is dedicated to Audi A3 and S3 8V generation models with a 2.0 TFSI engine and Quattro drive, where it is responsible for precise power distribution to the rear axle wheels. Its rear-mounted position ensures proper cooperation with other drivetrain components, which translates into predictable vehicle behavior during acceleration, engine braking, and cornering.

Thanks to the factory Audi design, the differential maintains compatibility with original mounting points and suspension geometry, which facilitates installation and reduces the need for additional modifications. This is particularly important for repairs of all-wheel-drive vehicles, where the accuracy of component fitment has a direct impact on the durability of the entire system.

Construction and technical characteristics

The rear differential with the RUR marking has been designed as an integral part of the Quattro system, with a gear ratio specifically matched to the 2.0 TFSI unit. The differential construction ensures:

• stable torque transmission to the rear wheels under various loads,
• smooth cooperation with the front-wheel drive and vehicle electronics,
• preservation of factory traction characteristics and all-wheel drive performance.

Original Audi manufacturing promotes the maintenance of proper housing rigidity and correct gear operation in the long term. This solution is particularly beneficial for vehicles used dynamically, where the drivetrain is regularly subjected to higher loads.

Benefits of using an original rear differential

Using an original rear differential in an Audi A3 / S3 8V 2.0 TFSI Quattro allows for maintaining the parameters specified by the vehicle manufacturer. Key advantages include:

• factory compatibility with the drivetrain and suspension of the specific model,
• consistent cooperation with traction control and electronic stability systems,
• reduced risk of incorrect gear ratio selection in relation to the rest of the drivetrain,
• possibility of direct replacement of a damaged differential without interfering with the vehicle's structure.

In the event of a drivetrain failure, choosing an original rear differential is a solution that helps maintain predictable vehicle handling and proper power distribution between the axles.

Condition, origin, and practical application

The offered item is a used part, sourced from an Audi vehicle dismantling. Such components are frequently chosen for repairs because they allow for maintaining the original factory specification while optimizing service costs. This is a practical solution both for workshops specializing in the Audi brand and for individual users who expect compliance with factory manufacturing standards.

The rear differential RUR will prove effective when replacing a damaged unit after mechanical failure, excessive gear wear, or during post-accident repairs where it is necessary to restore full functionality of the Quattro drive.

Differential selection and technical knowledge

When selecting a drive axle for a specific engine version and drivetrain, it is worth paying attention to the compatibility of the gear ratio and the markings used by the manufacturer. To better understand the relationships between gear ratios, drive characteristics, and driving style, the guide article Dismantled drive axles and differentials – how to choose gear ratios for your driving style will be helpful, as it discusses the practical aspects of selecting a differential and drive axle.

If you are planning a comprehensive repair or upgrade of the drivetrain in your Audi and need other components from the same group, such as rear axles, differential gears, or complete differentials, check the available parts in the Audi Differentials category.