Audi Q5 8R 2.0 TDI Quattro Rear Differential Diff 35:8 KLM 0BC500043N WARRANTY

Listing details

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

Audi Q5 8R 2.0 TDI Quattro Rear Differential Diff 35:8 KLM is an original drivetrain component from the Differentials category, designed for installation on the rear axle. It ensures proper torque transfer in the Quattro drive system, which translates into stable handling and predictable vehicle behavior in various road conditions. This is a solution for users who expect consistency with the factory drive configuration.

Specifications and technical data

• SKU: 0BC500043N
• Mark: Audi
• Condition: Used
• OEM Part Number: 0BC500043N
• Substitutable numbers: 0BC500043N, 0BC 500 043 N
• Location on the vehicle: Rear
• Category: Differentials

Purpose and function in the drivetrain

The described rear differential is a component of the drivetrain in the Audi Q5 8R model with a 2.0 TDI engine and Quattro all-wheel drive. Its task is to distribute torque to the rear axle wheels and work in conjunction with other all-wheel-drive components. Thanks to the appropriate 35:8 KLM gear ratio, the rear axle maintains the correct rotational relationship between the axles, which is important for traction, the operation of stabilization systems, and driving comfort.

Key technical features

The differential has been designed as a component mounted in the rear of the vehicle, taking into account the characteristics of the Quattro drive used in the Audi Q5 8R. The construction of the rear axle is adapted to the loads generated by the 2.0 TDI unit and for operation in varying grip conditions. The applied gear ratio allows for harmonious cooperation with the transmission and drive control system, which reduces unwanted stress in the system and promotes smooth driving.

The element belongs to the Differentials group, which means it is the part responsible for differentiating the rotational speed of the wheels while maintaining directional stability. A properly selected rear axle affects:

• maintaining predictable vehicle handling characteristics,
• proper cooperation with safety systems,
• reducing excessive wear of tires and drivetrain components.

Condition, origin, and fitment

The presented differential comes from the Audi range and is a secondary market product, which allows for an economical replacement while maintaining compliance with the vehicle's factory specifications. The used condition means that the element has been in service but can still perform its function after proper installation and verification by a mechanic. This type of component is particularly interesting for users who want to restore the efficiency of the Quattro drive without having to invest in a new assembly.

The location on the vehicle is the rear, which facilitates the identification of the correct scope of service work and planning the replacement in a workshop. When selecting a differential, it is worth paying attention to compatibility with the drive version and vehicle configuration to maintain consistency in gear ratios and driving characteristics.

Practical application and benefits of installation

Installation of the rear differential in an Audi Q5 8R 2.0 TDI Quattro is recommended in situations where symptoms such as noise from the rear drivetrain, uneven torque transfer, or improper system operation during acceleration and engine braking occur. Replacing the rear axle with a functional unit allows you to:

• restore the smoothness of the all-wheel-drive system,
• reduce unwanted sounds and vibrations from the rear axle,
• maintain proper vehicle behavior in corners and during load changes.

For users who drive their car intensively on the road or in urban conditions, a functional rear differential is an important element affecting driving comfort and safety. Choosing an original component from the same design group as the factory-installed unit helps maintain the vehicle's predictable characteristics.

Gear ratio selection and technical knowledge

When planning a rear axle replacement in all-wheel-drive cars, it is crucial to match the gear ratio to the rest of the drivetrain and driving style. The proper selection of differential parameters affects dynamics, fuel consumption, and component durability. To better understand the relationships between gear ratios, axle construction, and handling characteristics, it is worth consulting specialized studies. A detailed discussion of the topic, along with examples and practical tips, can be found in the article Dismantled drive axles and differentials – how to choose gear ratios for your driving style.

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 differential housings, final drives, or complete axles, check the available parts in the Audi Differentials category.