Automatic Gearbox BMW E46 330i E39 530i Z4 E85 3.0i M54 1423932 A5S325Z WARRANTY

Listing details

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

Automatic Gearbox BMW E46 330i E39 530i Z4 E85 3.0i M54 is a factory-spec component from the A5S325Z family, designed for direct installation in selected 3.0 petrol versions. This is a solution for users who expect consistent performance with the original drivetrain and the preservation of the operating characteristics intended by the manufacturer. The product comes from dismantling, which allows for an economical yet technically sound repair of the transmission system.

Specifications and technical data

• SKU: 1423933
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 1423933
• Substitutable numbers: 24001423933, 1423933, 24001423932, 1423932
• Gearbox type: Automatic
• Category: Automatic Transmission

Purpose and compatibility

The presented Automatic Gearbox BMW E46 330i E39 530i Z4 E85 3.0i M54 belongs to the Automatic gearboxes category and is structurally matched to selected versions of the BMW 3 Series E46 330i, 5 Series E39 530i, and the Z4 E85 3.0i roadster with the M54 engine. Using this transmission allows for the retention of factory mounting points, the correct driveshaft length, and compatibility with the vehicle's original electronic control system.

As a result, this gearbox is a suitable choice both when replacing a damaged transmission and for drivetrain repairs where compliance with the vehicle's factory configuration is crucial.

Technical and structural characteristics

The offered transmission is of the Automatic type, which means fully automatic gear shifting, controlled hydraulically and electronically. The design from the A5S325Z family was developed for 3.0 petrol engines, ensuring appropriate mechanical durability and gear ratios matched to the torque of the M54 unit.

In practice, this translates into smooth acceleration, predictable downshifts, and comfortable operation in typical road conditions. Using an original gearbox from the same design family minimizes the risk of issues with control software compatibility and the vehicle's diagnostic system.

Application in service practice

This automatic gearbox will prove useful in situations where the existing transmission has suffered a major mechanical or hydraulic failure and repair is not cost-effective. Replacing it with a complete unit from the same design family allows for reduced vehicle downtime and limits the scope of additional modifications.

In workshops specializing in the BMW brand, using an original transmission from the A5S325Z group facilitates the installation process, system bleeding, and gearbox adaptation in the ECU. For the end user, this means predictable vehicle behavior after repair and the preservation of the driving character typical of BMW automatic transmissions from this production period.

Benefits of choosing an original BMW automatic gearbox

Choosing this transmission primarily ensures the preservation of factory gear-shifting characteristics, which is important for both driving comfort and the durability of the entire drivetrain. The original design from the A5S325Z family was engineered specifically for cooperation with the M54 engine, ensuring that mechanical and thermal loads remain within the range specified by the manufacturer.

An additional advantage is the possibility of easier diagnostics – using a transmission that complies with factory specifications allows for the use of standard service procedures and diagnostic tools dedicated to the BMW brand.

Related materials and further knowledge expansion

If you want to better understand the differences between manual transmissions, classic automatics, and dual-clutch gearboxes, as well as learn practical tips for buying a used transmission, it is worth checking out the guide: Gearbox: manual, automatic or DSG – common faults and a guide to buying a used transmission. This is a helpful supplement to your knowledge before installing a used automatic gearbox in your BMW.

For users who want to maximize the trouble-free service life of parts sourced from dismantling, the following material will also be useful: How to extend the life of used car parts?, which contains practical tips on the operation and maintenance of components.

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 a torque converter, additional automatic transmissions, or compatible control modules, check out the available parts in the BMW automatic gearboxes category.