BMW X1 E84 Automatic Gearbox 16i 20i 28i Petrol N20 GA8HP45Z 8601666 WARRANTY

Listing details

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

BMW X1 E84 Automatic Gearbox 16i 20i 28i Petrol N20 GA8HP45Z is a factory-original component designed to work with the N20 engine unit and the GA8HP45Z transmission type. This is a used, fully functional automatic gearbox, providing a technically matched service solution for owners of the BMW X1 E84 with a petrol drivetrain.

Specifications and technical data

• SKU: 8632461
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8601666
• Substitutable numbers: 24008632461, 8632461, 24007649239, 24008601666, 24007643953, 7649239, 8601666, 7643953
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: Automatic Transmission

Purpose and compatibility

The described gearbox is designed to work with the N20 petrol engine in the BMW X1 E84 model in 16i, 20i, and 28i versions. The GA8HP45Z construction ensures smooth, multi-stage gear shifting, adapted to the characteristics of petrol units, which translates into stable acceleration and comfortable driving in both city traffic and on the highway.

This type of automatic transmission is particularly valued in workshops specializing in BMW for its predictable behavior, good integration with the vehicle's electronics, and the possibility of precise diagnostics. As a result, it provides a practical basis for professional repair or replacement of a damaged gearbox in your X1 E84.

Construction and operating characteristics

The GA8HP45Z is a modern, hydrodynamic automatic gearbox that combines ease of operation with efficient use of the petrol engine's torque. The multi-gear construction allows for maintaining optimal engine RPM, which promotes smooth driving and reduces unwanted jerking during gear changes.

In practice, this means stable starting, predictable downshifts when overtaking, and good cooperation with the driving modes available in the BMW X1 E84. The gearbox is adapted for integration with the factory control system, which facilitates its adaptation after installation and allows for the use of standard BMW service procedures.

Application in the BMW X1 E84 drivetrain

In combination with the N20 petrol engine, this automatic transmission is responsible for power transmission while maintaining appropriate dynamics and operating culture. This is particularly important in daily use – from city driving with frequent stops to longer highway stretches, where gear stability and proper gear selection affect the comfort of the driver and passengers.

For workshops and private users, it is important that the gearbox comes from the Automatic gearboxes group dedicated to BMW, which facilitates the selection of appropriate installation procedures, transmission oil, and controller settings during adaptation after replacement.

Condition, verification, and service aspects

The offered transmission is a used item, which in practice means a favorable cost-to-functionality ratio while maintaining the original BMW specification. Before installation, standard service procedures typical for automatic gearboxes are recommended: checking for leaks, changing the oil and filter according to the manufacturer's recommendations, and adapting the gearbox using appropriate diagnostic software.

An additional benefit for the buyer is the ability to identify this gearbox by its OEM part number and available interchangeable numbers, which facilitates verification of compatibility with a specific BMW X1 E84 configuration. This helps reduce the risk of selecting the wrong component and speeds up the repair process.

Drivetrain expansion and selection of other BMW gearboxes

If you are planning a comprehensive repair or upgrade of the drivetrain area in your BMW and need other components from the same group, such as complete automatic transmissions, gearbox housings, or additional control components, check the available parts in the BMW automatic gearboxes category.

To better plan the purchase of a used transmission and understand typical signs of wear, it is worth using the practical Global Parts guide – it discusses in detail the differences between manual, automatic, and DSG gearboxes, typical faults, and key inspection points before purchase. Read the article Gearbox: manual, automatic, or DSG – typical faults and a guide to buying a used gearbox to consciously assess the condition and cost-effectiveness of a replacement in your BMW.