BMW E46 X3 E83 325xi 2.5i Petrol M54 Automatic Gearbox A5S 390R 7523278 WARRANTY

Listing details

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

BMW E46 X3 E83 325xi 2.5i Petrol M54 Automatic Gearbox A5S 390R is an original, used automatic transmission from the Automatic gearboxes group, designed for BMW petrol units with the M54 2.5i engine and xDrive system. The design of this gearbox ensures smooth gear shifting, stable torque transfer, and comfortable operation of the drivetrain in daily use.

Specifications and technical data

• SKU: 7523278
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7523278
• Substitutable numbers: 24007523279, 7523279, 24007520361, 7520361, 24007523278, 7523278, 24007520360, 7520360, 96024839
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: Automatic Transmission

Purpose and compatibility

The presented automatic gearbox has been designed to work with the M54 2.5i petrol engine in BMW 3 Series E46 325xi and BMW X3 E83 models, where an Automatic type transmission is required. This solution is dedicated to all-wheel-drive systems, ensuring proper alignment with factory engine and drivetrain controls.

Thanks to the use of original BMW technology, the gearbox maintains factory gear-shifting characteristics, which translates into predictable vehicle behavior, correct cooperation with traction systems, and operational stability under a wide range of loads.

Construction and operating characteristics

The A5S 390R family gearbox is a five-speed automatic transmission adapted for use with petrol engines of moderate to high power. The applied hydrodynamic design enables smooth starting, vibration reduction, and comfortable acceleration without jerking.

The control system selects gear ratios optimized for the flexibility of the M54 engine, which allows for maintaining an efficient RPM range both during city driving and on the highway. Properly selected gear ratios also promote stable operation of the xDrive system, reducing mechanical stress in the drivetrain.

Benefits of using an original automatic gearbox

Choosing an original transmission from dismantling for a BMW E46 325xi or X3 E83 allows for maintaining the consistency of the entire drivetrain. Factory fitment to the petrol engine and vehicle controllers minimizes the risk of compatibility issues, electronic errors, or improper operation of driving modes.

A used transmission from this series is also a reasonable compromise between repair costs and durability – with proper installation and appropriate oil service, it can provide long, stable operation. For workshops and users, this means the possibility of effective repair without the need to invest in expensive factory remanufacturing.

Selection by numbers and installation procedure

Before purchasing, it is recommended to precisely match the gearbox by OEM number and interchangeable numbers, as well as to verify compatibility with the specific engine and drivetrain version of the vehicle. The most reliable method is selection by VIN, which allows avoiding problems with differences in controller software or manufacturing variants.

During installation, it is crucial to follow the manufacturer's procedures: proper system bleeding, use of the correct automatic transmission fluid, and inspection of connection tightness. Careful installation significantly affects the transmission's refinement and its long-term durability.

BMW automatic gearboxes – expansion and modernization

If you are planning a comprehensive repair or modernization of the drivetrain area in your BMW and need other components from the same group, such as a torque converter, control elements, or additional hydraulic sub-assemblies, check the available parts in the BMW automatic gearboxes category.

Technical support and expert knowledge

When choosing a used automatic transmission, it is worth relying on reliable information regarding selection procedures, real costs, and common myths associated with parts from dismantling. A detailed discussion of these issues can be found in the guide Why it is worth buying used gearboxes and engines – facts instead of myths, which helps to consciously plan the repair and select the right component for a specific BMW unit.