Audi A6 C6 3.0 TDI Rear Axle Differential Diff HNN 0AR500043C WARRANTY

Listing details

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

Audi A6 C6 3.0 TDI Rear Axle Differential Diff HNN 0AR500043C WARRANTY is a factory-original drivetrain component from the Differentials category, designed for installation on the rear axle of Audi models equipped with quattro all-wheel drive. This used rear axle differential allows for a technically sound repair of the drivetrain while maintaining original performance characteristics at a cost-effective price.

Specifications and technical data

• SKU: 0AR500043C
• Mark: Audi
• Condition: Used
• OEM Part Number: 0AR500043C
• Substitutable numbers: 0AR500043C, 0AR 500 043 C
• Location on the vehicle: Rear
• Category: Differentials

Application and function in the drivetrain

The described rear axle differential is responsible for torque distribution to the rear wheels in the quattro system, ensuring proper cooperation with other drivetrain components. Its placement on the vehicle, designated as the rear, means this is a complete unit intended for rear axle mounting, working in conjunction with the driveshaft and axle shafts.

Selecting the correct differential for the Audi A6 C6 3.0 TDI Quattro is crucial for maintaining proper traction, vehicle stability, and the correct operation of assistance systems, such as traction control or electronic stability programs. Using an OEM component helps maintain the structural integrity of the entire drivetrain.

Technical specifications and compatibility

The rear axle differential was designed by the manufacturer to handle the specific loads generated by the 3.0 TDI engine and the quattro system. The appropriately selected gear ratio, housing design, and gear set ensure harmonious cooperation with the front-wheel drive and transmission, which translates into predictable vehicle behavior under various road conditions.

The component belongs to the Differentials category, meaning it is part of a precision mechanical system that requires careful selection based on the engine version, drive type, and axle configuration. This used Audi differential, sourced from vehicle dismantling, represents a sensible solution for repairs where maintaining the original design and operating parameters is essential.

Condition, origin, and benefits of using a used part

The product is offered as a used part, which in practice means real cost savings while maintaining the manufacturer's original specifications. For drive axles and differentials, using a salvaged component is a frequently chosen service solution, especially when the goal is to preserve the factory performance characteristics of the drivetrain.

A used Audi rear axle differential allows for:

• reducing repair costs compared to a new component,
• maintaining compatibility with the factory drivetrain design,
• preserving the correct torque distribution between axles in the quattro system.

Practical installation and maintenance tips

When replacing the rear differential in an Audi A6 C6 3.0 TDI Quattro, it is worth paying attention to correct installation in the rear axle area, proper tightening of mounts, and the condition of mating components such as axle shafts, the driveshaft, or suspension mounts. Installation at a specialized service center is recommended to ensure proper alignment and inspection of any gear backlash.

For drivers who want to better understand gear ratios and the impact of the drive axle on driving characteristics, an article discussing definitions, ratios, and application examples will be useful – detailed information can be found in the material Salvaged drive axles and differentials – how to choose gear ratios for your driving style.

Expanding the Audi drivetrain – selecting related components

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

By using original components from the same group, you will maintain the structural consistency of the drivetrain, which translates into stable operation of the quattro system, predictable vehicle behavior, and a reduced risk of improper interaction between the axles.