Audi S3 8V 2.0 TFSI CJXC Quattro Rear Axle Differential PHF 0CQ525010D 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 8V 2.0 TFSI CJXC Quattro Rear Axle Differential PHF is an original drivetrain component from the Differentials category, designed for installation on the rear axle in all-wheel-drive versions. This used differential allows for an economical yet technically sound repair of the drivetrain, maintaining the proper operating characteristics of the quattro system. It is a solution for users expecting factory geometry and stable torque distribution in Audi vehicles.

Specifications and technical data

• SKU: 0CQ525010D
• Mark: Audi
• Condition: Used
• OEM Part Number: 0CQ525010D
• Substitutable numbers: 0CQ525010D, 0CQ 525 010 D
• Location on the vehicle: Rear
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: Differentials

Purpose and function in the drivetrain

The described rear differential operates in the vehicle's drivetrain with a petrol engine and automatic transmission, forming a complete power transmission path in the quattro system. Its task is to precisely distribute torque to the rear axle wheels, which translates into predictable vehicle behavior, stability at higher speeds, and better traction during acceleration.

The component is mounted in the rear chassis area, where it works with the half-shafts, driveshaft, and other components of the system. By maintaining the factory design, it ensures consistency with the original vehicle configuration, which is important for both safety and the durability of other sub-assemblies.

Benefits of using an original differential

Using an original differential in an Audi S3 8V with quattro drive allows for maintaining the correct operating parameters of the drivetrain without the need for interference with the vehicle's electronics or mechanics. This is particularly important in cars with automatic transmissions, where the cooperation between the gearbox and the differential must be consistent to avoid improper gear shifts, jerking, or excessive wear of friction elements.

The main advantages of using this type of component include:

• maintaining the factory characteristics of torque distribution on the rear axle,
• consistency with the automatic transmission control system,
• reducing the risk of improper operation of traction and stability control systems,
• possibility of installation as a replacement part without structural modifications.

Installation and operational characteristics

The rear differential designed for the Audi S3 8V with a petrol engine and automatic transmission is a solution that can be integrated into the existing drivetrain using standard service procedures. Installation takes place in the rear of the vehicle, using factory mounting points and connections to the half-shafts and driveshaft.

When selecting such a component, it is crucial to match it to the specific drive configuration, including the fuel type and transmission type. A properly selected differential reduces noise, vibrations, and uneven tire wear, and also supports the stable operation of driver assistance systems. A used component allows for optimizing repair costs while maintaining compliance with factory design specifications.

Support in selection and drivetrain expansion

In the case of all-wheel-drive vehicles, the choice of the appropriate differential has a direct impact on handling characteristics and the durability of the entire system. If you want to better understand the relationships between gear ratios, driving style, and the selection of drive axles and differentials, it is worth consulting a specialist guide – it is discussed in detail in the article Dismantled drive axles and differentials – how to choose gear ratios for your driving style, where you will find practical tips and application examples.

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 rear differentials, drive axles, or differential gears, check out the available parts in the Audi Differentials category.