Automatic Gearbox BMW F45 F46 216i 218i B38 GA6F21AW 8695803 8608020 WARRANTY

Listing details

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

Automatic Gearbox BMW F45 F46 216i 218i B38 GA6F21AW is an original, used transmission from the Automatic gearboxes segment, designed for BMW 2 Series Active Tourer and Gran Tourer models with the B38 petrol engine. This is a solution for users who expect factory compatibility, predictable drivetrain performance, and reasonable maintenance costs.

Specifications and technical data

• SKU: 9423603
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9423603
• Substitutable numbers: 24009423603, 9423603, 24008488903, 24008741903, 24008685203, 8488903, 8741903, 8685203, 24008695803, 8695803, 24008608020, 8608020, 24618631609, 8631609, 24008687030, 8687030
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: Automatic Transmission

Purpose and compatibility

The presented automatic gearbox has been designed to work with the B38 petrol unit in BMW F45 and F46 models in 216i and 218i versions. The transmission design is adapted to the torque characteristics of these engines, which translates into smooth acceleration, stable starting, and predictable vehicle behavior in city traffic and on the road.

The GA6F21AW automatic transmission ensures comfortable gear shifting without the need for driver intervention, which is particularly noticeable in daily use – in traffic jams, while maneuvering, and during dynamic acceleration. Using an original BMW component reduces the risk of fitment issues and facilitates integration with the vehicle's factory electronics.

Technical characteristics and transmission operation

The gearbox belongs to the group of automatic petrol transmissions, which means that its control system and gear ratios have been optimized for operation with a petrol-powered engine. The transmission works with the factory vehicle controller, responsible for selecting gears based on load, speed, and the selected driving mode.

Key advantages of this type of gearbox include:

• smooth and predictable gear shifting,
• stable torque transfer to the wheels,
• cooperation with safety and comfort systems designed by the manufacturer,
• the ability to maintain factory drivetrain performance parameters.

Thanks to the use of an original automatic transmission, the user retains the driving characteristics typical of BMW – a balanced combination of comfort and precision in throttle response.

Benefits of choosing an original used gearbox

Choosing an original, used BMW automatic gearbox is a solution that allows you to combine cost control with maintaining the factory drivetrain design. Unlike many aftermarket replacements, a transmission sourced from a dismantled car of the same brand is designed from the ground up for a specific platform, which limits the risk of installation and software problems.

In practice, this means:

• better compatibility with the vehicle's factory software,
• preservation of original mounting points and connections,
• easier diagnostics at the service center thanks to the known OEM design,
• the ability to restore serial drivetrain performance parameters without costly modifications.

For many BMW F45 and F46 users, this is a reasonable compromise between quality and budget, especially in the event of major drivetrain failures.

Condition, verification, and installation aspects

The item comes from the secondary market and is intended for re-installation following standard service procedures, including, among others, leak checks, transmission oil changes in accordance with manufacturer recommendations, and transmission adaptation in the vehicle. It is recommended to have the installation performed by a specialized workshop that has the appropriate diagnostic equipment for servicing BMW automatic transmissions.

Before purchasing, it is worth verifying the compatibility of the gearbox with the specific vehicle configuration using the VIN number and technical data of the car. This helps avoid fitment issues and ensures proper cooperation with existing equipment and electronics.

Technical support and additional information

If you are considering replacing the transmission and want to better understand the differences between purchasing an original used gearbox and remanufacturing, a guide explaining typical symptoms of damage and the approach to drivetrain repair may be helpful – see the article: Manual gearbox failures – why an original used part is sometimes a more reasonable choice than remanufacturing.

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, control elements, or additional transmission components, check the available parts in the BMW automatic gearboxes category.