BMW X5 E53 3.0i M54 Automatic Auto Transmission Gearbox A5S 390R - TZ WARRANTY

BMW X5 E53 3.0i M54 Automatic Auto Transmission Gearbox A5S 390R - TZ WARRANTY is an automatic transmission designed for the popular M54 petrol engine in the X5 E53 model. It offers smooth gear shifting while maintaining the factory characteristics of the BMW drivetrain. This is a solution for users who want to restore proper drivetrain operation while adhering to the original manufacturer specifications.

Specifications and technical data

• SKU: 1423540
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 1423540
• Substitutable numbers: 24001423540, 1423540, 24001423541, 1423541
• Gearbox type: Automatic
• Category: Other Transmission & Drivetrain

Purpose and characteristics of the transmission

The presented automatic transmission A5S 390R has been designed to work with the 3.0i M54 engine in the BMW X5 E53, ensuring correct gear ratios, appropriate shifting characteristics, and compatibility with factory controls. The design of this transmission is optimized for the weight of the X5 vehicle, which translates into predictable car behavior both in city traffic and on the highway.

The automatic operation mode allows for comfortable vehicle use, and the properly selected gear ratios support the flexibility of the M54 engine. Using an original transmission instead of a worn-out component reduces the risk of fitment issues and simplifies the installation process.

Benefits of using an original BMW transmission

Choosing a transmission dedicated to a specific model and engine provides a number of practical benefits:

• preservation of factory gear shifting characteristics and drivetrain operation,
• consistency with the vehicle's control software,
• easier diagnostics at the service center due to compliance with factory parameters,
• reduction of the risk of incorrect fitment of mounting components.

For the user, this means stable drivetrain operation, predictable throttle response, and comfortable vehicle operation. Using an original automatic transmission also helps maintain the technical integrity of the car, which is important for future service maintenance.

Condition and practical application

The offered transmission comes from the used parts segment, which allows for economical repair while maintaining the original BMW design. This is a particularly beneficial solution in situations where the current transmission shows signs of wear, such as jerking, delayed gear shifts, or problems with starting.

Replacing it with the correct A5S 390R model dedicated to the X5 E53 3.0i M54 allows for the restoration of proper drivetrain operation without the need for installation modifications or adaptation of mechanical elements. This is a practical option both for workshops specializing in the BMW brand and for informed users looking for a technically matched solution.

Selection and technical compatibility

To correctly select a transmission for a specific BMW X5 E53 unit, it is worth paying attention to compatibility with the M54 powertrain and the type of automatic transmission used. The product has an assigned OEM part number and interchangeable numbers, which facilitate compatibility verification in service catalogs and parts selection systems, without the need to use replacements of uncertain origin.

Thanks to this, the workshop or user can precisely confirm that the given transmission will work with the existing wiring harness, transmission oil cooling system, and vehicle controller. Such an approach minimizes the risk of additional costs associated with modifications.

Related categories and technical knowledge

If you are planning a comprehensive repair or upgrade of the drivetrain area in your BMW and need other elements from the same group, such as automatic transmissions, mounting elements, or components working with the drivetrain, check the available parts in the Other BMW category.

For a better understanding of the differences in the design of sports and standard drivetrains, as well as the impact of the transmission on performance and driving characteristics, it is worth reading an article describing the comparison of sports RS versions to standard models: Audi RS vs other models – what is hidden under the hood and chassis?.

If you are considering using original used parts in your car and want to better understand their impact on the vehicle's later value upon sale, the following guide may be helpful: Original used parts vs resale price – how not to lose money?.