Audi A5 8T 2.0 TFSI Quattro Rear Differential 37:9 MNA 0BC500044 WARRANTY

Listing details

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

Audi A5 8T 2.0 TFSI Quattro Rear Differential 37:9 MNA 0BC500044 WARRANTY is a drivetrain component designed for installation on the rear axle in vehicles equipped with quattro all-wheel drive. This original part from the Differentials category ensures proper torque distribution between the rear wheels, which translates into stable handling and predictable vehicle behavior. This used component allows for an economical yet technically sound repair of the drivetrain system.

Specifications and technical data

• SKU: 0BC500044-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 0BC500044
• Substitutable numbers: 0BC500044, 0BC 500 044
• Location on the vehicle: Rear
• Category: Differentials

Purpose and function in the drivetrain

The rear differential in the Audi A5 8T 2.0 TFSI Quattro is responsible for precise power transmission to the rear wheels and the correct utilization of the 37:9 gear ratio. This ensures that the quattro system maintains its characteristic traction properties, and the vehicle remains stable both during highway driving and in low-grip conditions.

Its location on the rear axle allows for direct integration with the driveshaft and axle shafts, which is crucial for maintaining compliance with the factory suspension and drivetrain geometry. Using the correct gear ratio is essential for the proper operation of the transmission, traction control systems, and overall driving comfort.

Benefits of using an original differential

Choosing an original differential for an Audi with quattro drive ensures:

• Factory fitment for the drivetrain of a specific engine and drive configuration.
• Consistency of the gear ratio with the ECU software and transmission characteristics.
• Reduced risk of malfunctions in assistance systems such as ESP or ABS.
• Installation without the need to interfere with the suspension design or associated components.

A used differential of this class is a solution that allows for maintaining proper traction parameters while keeping service costs reasonable, which is particularly important when repairing vehicles with advanced all-wheel drive systems.

Installation characteristics and application

The presented rear differential is intended for installation in the rear of the vehicle, replacing the factory unit in the Audi A5 8T 2.0 TFSI Quattro. The design intended for this model allows for integration with the existing drivetrain without the need to modify mounts or suspension geometry, provided the part is selected in accordance with the vehicle's technical documentation.

Before purchasing, it is recommended to verify the compatibility of the gear ratio and the differential type with the currently installed component to ensure drivetrain consistency and avoid differences in driving characteristics. A properly selected differential restores full functionality to the quattro system after a failure or wear of the previous unit.

Condition and use in vehicle service

The offered differential is a used part, which allows for an economical repair while maintaining the original design specified by the manufacturer. This type of component is suitable both for standard replacement of a damaged differential and for comprehensive drivetrain rebuilding in an Audi A5 8T with quattro drive.

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

Gear ratio selection and technical knowledge

The correct selection of the rear differential gear ratio for your driving style, engine power, and drive configuration has a direct impact on dynamics, fuel consumption, and component durability. In the case of the Audi A5 8T 2.0 TFSI Quattro, it is particularly important to maintain gear ratio consistency between the front and rear axles to avoid drivetrain strain.

To better understand the relationship between differential ratios, drive characteristics, and driving comfort, it is worth reading the technical guide Dismantled drive axles and differentials – how to choose gear ratios for your driving style, which discusses definitions, configuration examples, and practical tips regarding used drivetrain components.