Audi S4 B8 3.0 TFSI CAKA Quattro Manual Gearbox 6 Speed KMR 0B4300040E WARRANTY

Listing details

The gearboxes are sold with a 90-day warranty! They were tested before removal and are in full working order.

Audi S4 B8 3.0 TFSI CAKA Quattro Manual Gearbox 6 Speed KMR is a factory-original, used manual transmission designed for the 3.0 TFSI petrol engine in the Quattro drivetrain. This is the ideal solution for users looking for an original, fully compatible manual gearbox for professional repair or replacement of the drivetrain in an Audi S4 B8.

Specifications and technical data

• SKU: 0B4300027A
• Mark: Audi
• Condition: Used
• OEM Part Number: 0B4300027A
• Substitutable numbers: 0B4300027A, 0B4 300 027 A, 0B4300027AX, 0B4 300 027 AX, 0B4300040E, 0B4 300 040 E
• Fuel type: Petrol
• Gearbox type: Manual
• Category: Automatic Transmission

Purpose and compatibility

The presented gearbox is designed to work with the 3.0 TFSI petrol engine with the CAKA code in the Audi S4 B8 generation model with Quattro all-wheel drive. The manual design of the transmission provides direct, precise gear control, which is particularly valued in performance-oriented cars such as the S4.

By using an original Audi solution, the gearbox maintains factory mounting points, geometry, and operating characteristics matched to the drivetrain and control systems of this specific model.

Technical characteristics of the manual gearbox

The manual gearbox in the Audi S4 B8 3.0 TFSI CAKA Quattro has been engineered to handle the high torque typical of a turbocharged petrol engine. The use of a classic, mechanical gear-shifting system allows for:

• direct control over gear ratios by the driver,
• consistent cooperation with the Quattro drivetrain,
• proper gear ratio selection for dynamic driving,
• easier diagnostics and maintenance compared to automatic transmissions.

A transmission configured in this way is particularly attractive for drivers who prefer a sporty, engaging driving style and for workshops specializing in the service of Audi S and RS models.

Application in the Quattro drivetrain

In the Audi S4 B8, the Quattro drivetrain requires a gearbox with a properly matched internal design and seamless cooperation with other drivetrain components. The original KMR manual transmission ensures:

• correct torque distribution to the vehicle's axles,
• preservation of factory traction characteristics,
• consistency with traction control and electronic stability programs,
• proper cooperation with the 3.0 TFSI CAKA petrol engine.

As a result, replacing the gearbox with an original unit from the same code family allows for maintaining the correct drivetrain operating parameters without the need for control modifications or the adaptation of non-standard solutions.

Condition, verification, and practical application

The offered gearbox is a used component, which in practice represents an attractive compromise between repair costs and maintaining the original Audi design. This type of transmission is especially recommended in situations where:

• mechanical damage to the existing gearbox has occurred,
• a complete unit replacement is necessary instead of costly refurbishment,
• the priority is to maintain the vehicle's original specifications.

Before installation, standard workshop procedures are recommended: checking for leaks, verifying clearances, assessing the condition of the oil, and replacing consumables in accordance with service practices for Audi manual transmissions.

Technical support, selection, and additional information

When selecting a gearbox for the Audi S4 B8 3.0 TFSI CAKA Quattro, it is crucial to verify the compatibility of the transmission code, fuel type, and gearbox type. It is worth noting that the product has assigned interchangeable numbers, which facilitates matching to a specific vehicle configuration and comparison with service documentation.

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 transmissions, control elements, or related sub-assemblies, check out the available parts in the Audi automatic transmissions category.

To better understand the differences between manual, automatic, and DSG transmissions, common faults, and key aspects of purchasing a used gearbox, it is worth reading our guide: Gearbox: manual, automatic, or DSG – common faults and a guide to buying a used transmission. This will help you better assess when replacing with a used manual gearbox is the most justified service solution.