BMW X3 F25 F26 35dX F30 F31 F32 335dX 435dX Automatic Gearbox GA8HP70X WARRANTY

BMW X3 F25 F26 35dX F30 F31 F32 335dX 435dX Automatic Gearbox GA8HP70X WARRANTY is a factory-original automatic transmission from the ZF family, designed for the xDrive all-wheel-drive system in the 3 Series F30 with the N57Z engine. This solution was created for smooth gear shifting, high operating culture, and efficient torque transfer in powerful BMW diesel units. By maintaining the original specifications, it provides a solid foundation for professional repair or replacement of a worn-out gearbox in your vehicle.

Specifications and technical data

• SKU: 8680406
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8680406
• Substitutable numbers: 24008487262, 8487262, 24008680406, 24008684796, 24008648667, 24007642544, 24008642037, 24008623251, 8680406, 8684796, 8648667, 7642544, 8642037, 8623251, 24009487567, 9487567
• Gearbox type: Automatic
• Category: Automatic Transmission

Purpose and technical characteristics

The offered gearbox belongs to the Automatic gearboxes category and was designed specifically to work with the xDrive all-wheel-drive system in the BMW 3 Series F30 335dX model with the N57Z engine. The design of this transmission is optimized for the high torque of the diesel unit, ensuring stable power transfer and predictable vehicle behavior both in daily driving and during dynamic acceleration.

Automatic gear control allows for comfortable operation in city traffic and on the highway, while the properly selected gear ratios support engine flexibility across a wide rev range. The gearbox is adapted to work with factory BMW electronic systems, which facilitates integration with the vehicle's existing installation.

Benefits of using an original BMW automatic gearbox

Using an original automatic gearbox in a BMW F30 335dX N57Z allows you to maintain the factory performance parameters of the drivetrain. Proper control calibration, matching the vehicle's software, and compatibility with factory driving modes translate into:

• consistent operation with traction and stability control systems,
• proper cooperation with the xDrive system across the full load range,
• maintenance of the manufacturer-intended dynamics and shift comfort,
• reduced risk of compatibility issues compared to replacements of uncertain origin.

For the user, this means predictable vehicle behavior, no need for experimental modifications, and easier diagnostics in the future.

Condition, verification, and service application

This item comes from dismantling and is offered as a used BMW automatic gearbox. Such components are frequently chosen by workshops specializing in the BMW brand as an economical alternative to new transmissions, especially for cars with high mileage or intensive fleet use. Before installation, a standard service procedure is recommended, including checking for leaks, changing the ATF oil according to the manufacturer's recommendations, and verifying the accompanying equipment.

Thanks to the preservation of the original specifications, the gearbox performs well both in classic replacement of a damaged transmission and in projects to refresh or restore full performance to dynamic BMW 3 Series diesels.

Selection, compatibility, and installation aspects

Before purchasing, it is worth verifying the compatibility of the gearbox with the specific vehicle configuration, taking into account the engine version, xDrive system, and production year. The original automatic gearbox for the BMW F30 335dX N57Z facilitates plug-in installation in cars for which it was factory-intended, minimizing the need for mechanical or electrical modifications. Workshops specializing in BMW will appreciate the predictable installation process and the ability to use standard diagnostic procedures after installation.

Proper selection of the transmission is crucial for the durability of the entire drivetrain – a correctly matched gearbox limits overloads, reduces the risk of clutch slippage, and supports even load distribution to both axles.

Knowledge expansion and additional resources

To better understand the specifics of operation and typical symptoms of automatic transmission wear, it is worth reading the guide on choosing a used gearbox: Gearbox: manual, automatic, or DSG – typical faults and a guide to buying a used gearbox. The article helps to consciously assess the condition of the component and prepare for a conversation with a mechanic or service center.

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 out the available parts in the BMW automatic gearboxes category.