Audi A8 D4 4.2 TDI Quattro Rear Axle Differential Diff MXX 0BE500043C WARRANTY

Listing details

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

Audi A8 D4 4.2 TDI Quattro Rear Axle Differential Diff MXX is a factory-original drivetrain component from the Differentials category, designed for installation on the rear axle of Audi models with quattro all-wheel drive. A used rear axle with a differential is a solution that allows for a technically sound repair of the drivetrain while maintaining the original performance characteristics. It is a practical choice for users expecting a robust part with parameters consistent with Audi's factory specifications.

Specifications and technical data

• SKU: 0BE500043C-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 0BE500043C
• Substitutable numbers: 0BE500043C, 0BE 500 043 C
• Location on the vehicle: Rear
• Category: Differentials

Purpose and function of the rear axle

The presented differential is a component designed for installation in the rear part of the drivetrain of Audi vehicles with all-wheel drive. It is responsible for distributing torque to the rear wheels, working in conjunction with other quattro system components. A properly selected rear axle ensures stable power delivery, predictable vehicle handling, and proper traction both during highway driving and in conditions with reduced grip.

Thanks to a design consistent with the solutions used factory-wide in the Audi A8 D4 4.2 TDI Quattro, the differential maintains the correct mounting geometry and operating characteristics matched to the weight, power, and drivetrain of this model. This allows for installation without interfering with the body or suspension structure.

Benefits of using an original Audi differential

Using an original rear axle with a differential in an Audi A8 D4 brings a number of practical advantages:

• preservation of factory handling characteristics and vehicle stability,
• consistency with other components of the quattro drivetrain,
• proper fitment to the standard mounting points on the rear axle,
• reduced risk of compatibility issues compared to universal aftermarket replacements.

For users looking for a service solution that does not alter the manufacturer's design assumptions, such a differential is a reasonable choice. It enables the restoration of proper drivetrain operation after a failure or wear of the previous axle, without the need for system modifications.

Installation characteristics and application

The rear axle with differential has been designed to operate in the rear part of the vehicle, in an all-wheel-drive system. The design provides for cooperation with the standard suspension, half-shafts, and other components of the Audi drivetrain. As a result, installation in the vehicle, for an experienced workshop, proceeds in an orderly manner and in accordance with the service procedures provided for this model.

The item comes from the used parts segment, which allows for the optimization of repair costs while maintaining the original design. Before installation, it is recommended to perform a standard technical condition verification at a specialized service center to adapt the installation method to the specific vehicle and its service history.

Selecting a differential for driving style and car configuration

When replacing the rear axle in an Audi A8 D4 4.2 TDI Quattro, it is important to match the gear ratios and the type of differential to the existing drivetrain configuration. This has a direct impact on dynamics, engine RPM at specific speeds, and the car's behavior in various road conditions. Proper component selection helps avoid undesirable effects, such as operational incompatibility with the front drive or excessive stress on drivetrain components.

To better understand the relationships between gear ratios, differential characteristics, and driving style, it is worth checking out the technical guide: Dismantled drive axles and differentials – how to choose gear ratios for your driving style. The article discusses practical aspects of selecting an axle and differential, which facilitates making an informed service decision.

Expanding the Audi drivetrain – related components

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 drivetrain components, check out the available parts in the Audi Differentials category.

By selecting components within the same category and brand, it is easier to maintain the technical consistency of the entire system, which translates into predictable vehicle behavior and proper cooperation of all drivetrain elements.