Audi TT 8J 2.0 TDI CFGB Quattro Rear Axle Differential MMK 0BR525010B WARRANTY

Listing details

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

Audi TT 8J 2.0 TDI CFGB Quattro Rear Axle Differential MMK is a factory-original drivetrain component designed for the rear axle in quattro-equipped versions. This used differential from the Differentials category allows for a technically sound repair of the drivetrain, maintaining proper torque distribution and handling stability. It is a solution for users who expect structural compatibility with the original rear axle and wish to restore the full performance of their all-wheel-drive system.

Specifications and technical data

• SKU: 0BR525010B
• Mark: Audi
• Condition: Used
• OEM Part Number: 0BR525010B
• Substitutable numbers: 0BR525010B, 0BR 525 010 B
• Location on the vehicle: Rear
• Category: Differentials

Purpose and function in the drivetrain

The rear axle with differential in the Audi TT 8J 2.0 TDI CFGB Quattro is responsible for precise torque distribution between the rear wheels, working in conjunction with other quattro system components. A correctly selected differential ensures:

• stable power delivery during acceleration and engine braking,
• controlled operation while cornering,
• consistent performance with vehicle electronics and safety systems.

The vehicle placement, specified as rear, indicates installation in the rear section of the drivetrain, directly connected to the half-shafts and the driveshaft, which is crucial for suspension geometry and the proper operation of the entire drive system.

Compatibility with Audi TT 8J 2.0 TDI CFGB Quattro

The presented differential has been designed specifically for the Audi TT 8J version with the 2.0 TDI CFGB engine and quattro drive, which translates into dimensional, structural, and mounting compatibility. As a result:

• proper cooperation with gearbox ratios and the rest of the drivetrain is maintained,
• there is no need to interfere with factory mounting points,
• the risk of incorrect gear ratio selection and unwanted vibrations is minimized.

Such a fit is particularly important in all-wheel-drive vehicles, where differences in axle ratios can lead to overloading, excessive tire wear, or damage to drivetrain components.

Characteristics of the used differential

As a used part, the rear axle with differential provides an economical alternative to new components while maintaining the original Audi design. This type of component is particularly attractive in situations where:

• a quick replacement of a damaged differential is necessary after a mechanical failure,
• repairing the existing axle is uneconomical or technically difficult,
• maintaining the factory performance characteristics of the quattro system is a priority.

The original Audi solution for the rear drive axle allows for predictable vehicle behavior, which is important both in daily use and during more dynamic driving.

Practical installation and maintenance tips

When replacing the rear differential in an Audi TT 8J 2.0 TDI CFGB Quattro, it is worth paying attention to several technical aspects:

• checking the condition of the half-shafts and joints working with the axle,
• verifying the integrity of seals and the condition of the oil in the system,
• inspecting mounting elements and axle suspension bushings.

Professional installation and proper suspension geometry alignment after replacement help to fully utilize the potential of the drivetrain and reduce wear on other components.

Expanding knowledge and selecting the right axle

If you want to better understand how to choose a drive axle and differential for your driving style, the importance of gear ratios, and what to look for when choosing dismantled parts, it is worth consulting this specialist guide: Dismantled drive axles and differentials – how to choose ratios for your driving style. This is a practical source of knowledge that helps in making informed service decisions.

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 axles, transmissions, or other differentials, check out the available parts in the Audi Differentials category.