Audi Q5 8R Manual Transmission Gearbox Differential CAHA Diesel 0B4409131G

Audi Q5 8R Manual Transmission Gearbox Differential CAHA Diesel is a specialized component from the Differentials group, designed for the drivetrain in vehicles with a diesel engine and a manual transmission. This is a solution for users who expect precise fitment for a specific drivetrain configuration and stable operation of the drive axle in daily use.

Specifications and technical data

• SKU: 0B4409131G
• Mark: Audi
• Condition: Used
• OEM Part Number: 0B4409131G
• Substitutable numbers: 0B4409131G, 0B4 409 131 G
• Fuel type: Diesel
• Gearbox type: Manual
• Part type: Differential Assembly Cover
• Category: Differentials

Purpose and function in the drivetrain

The axle differential cover in the Audi Q5 8R is responsible for a tight and stable closure of the differential housing, ensuring proper guidance of internal components and keeping the lubricant in the correct working area. In a configuration with a diesel engine and a 6-speed manual transmission, this component works with the final drive, transferring torque to the axle wheels while maintaining the required operating characteristics. Selecting a cover dedicated to a specific drivetrain version reduces the risk of leaks, improper fitment, and accelerated wear of bearings and gears in the differential. This is particularly important in vehicles operated under load, where the drivetrain operates under varying thermal and mechanical conditions.

Compatibility with Diesel unit and manual transmission

The presented cover has been designed to work with a diesel engine and a 6-speed manual transmission, which translates into compatibility with the characteristic torque range and power transfer method in this system. As a result, the correct geometry of the differential seating and proper axle shaft guidance are maintained under typical loads for this drivetrain configuration. In practice, this means that with proper installation and the use of appropriate consumables, stable and predictable operation of the drive axle can be achieved, without unwanted play or excessive vibrations resulting from a mismatch of the housing component.

Characteristics of the used component

The axle differential cover is offered as a used part, which allows for an economical repair of the drivetrain while maintaining the original Audi design specifications. A properly selected component from dismantling is a particularly attractive solution for post-accident repairs, replacement after mechanical damage, or during differential regeneration. Choosing an original cover from the secondary market allows for the preservation of factory geometry and mounting points, which facilitates installation and limits the need for additional modifications. This is a practical solution for workshops specializing in axle drive repairs and for individual users who want to restore the full efficiency of the differential system in their Audi Q5 8R.

Technical support and differential selection

When selecting components from the differentials and drive axles group, it is crucial to match them to the specific drivetrain version, gear ratios, and driving style. To better understand the relationships between gear ratios, differential design, and vehicle behavior on the road, it is worth consulting expert material – this is discussed in detail in the article Dismantled drive axles and differentials – how to choose gear ratios for your driving style, where you will find practical tips on configuring and selecting used components.

Expanding the system within Audi differentials

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 housings, satellite carriers, or additional differential components, check the available parts in the Audi Differentials category.