BMW X1 E84 ZF 8HP45 8-Speed Automatic Transmission

Product Description

Genuine ZF 8HP45 automatic transmission designed for BMW X1 E84 applications.

This ZF 8HP45 8-speed automatic gearbox is identified by the transmission number 1090 166XDZ, with the identification/date marking 2-18-15. The 8HP45 is a sophisticated electronically controlled automatic transmission featuring a hydrodynamic torque converter, integrated mechatronic control system and eight forward gears.

ZF’s transmission catalogue specifically lists the 8HP45 HIS for the BMW X1 (E84), confirming the gearbox family as an original BMW application.

The 8HP45 is engineered to provide smooth gear changes, strong performance, improved fuel efficiency and a wide ratio spread. Its eight-speed design uses closely spaced ratios for responsive acceleration while the tall eighth gear helps reduce engine speed during cruising.

Technical Specifications

Specification	Details
Manufacturer	ZF Friedrichshafen AG
Transmission Family	ZF 8HP45
Transmission Type	8-Speed Automatic
Application	BMW X1 E84
ZF Identification	1090 166XDZ
Marking / Date Code	2-18-15
Control System	Integrated Mechatronic / Electronic-Hydraulic Control
Torque Converter	Hydrodynamic torque converter with lock-up clutch
Forward Gears	8
Reverse Gear	1
1st Gear Ratio	4.714:1
2nd Gear Ratio	3.143:1
3rd Gear Ratio	2.106:1
4th Gear Ratio	1.667:1
5th Gear Ratio	1.285:1
6th Gear Ratio	1.000:1
7th Gear Ratio	0.839:1
8th Gear Ratio	0.667:1
Reverse Ratio	Approx. 3.3:1
Engine Torque Capacity	Up to 450 Nm for petrol applications / 500 Nm for diesel applications*
Maximum Turbine Torque	Approx. 550 Nm forward
Transmission Weight	Approx. 76–78 kg depending on configuration*
ATF	ZF Lifeguard 8 / application-specific approved fluid
Gearbox Architecture	4 planetary gearsets / 5 shift elements
Drive Configuration	Application-dependent

*Specifications can vary by specific ZF variant and vehicle application.

Key Features

• ZF 8HP45 8-speed automatic transmission
• Designed for BMW X1 E84 applications
• Smooth and rapid automatic gear changes
• Integrated electronic/mechatronic transmission control
• Hydrodynamic torque converter with lock-up function
• Wide 8-speed ratio spread for improved acceleration and cruising efficiency
• Proven ZF 8HP transmission architecture
• Suitable for replacement, repair or drivetrain refurbishment where the exact transmission specification matches

Compatibility

Vehicle: BMW X1
Chassis: E84
Transmission: ZF 8HP45
Identification: 1090 166XDZ
Marking: 2-18-15

IMPORTANT: Transmission compatibility should always be confirmed against the vehicle’s VIN, engine code, drivetrain (sDrive/xDrive), BMW transmission number and existing gearbox identification before purchase. BMW X1 E84 models can use different 8HP45 variants and ZF identification numbers. ZF’s catalogue, for example, lists multiple 8HP45 HIS variants for the X1 E84.

Ideal for

• BMW X1 E84 transmission replacement
• Automatic gearbox repair projects
• Professional workshops and transmission specialists
• Automotive dismantlers and spare-parts suppliers
• Reconditioning and refurbishment applications

Product Identification

Brand: ZF
Model: 8HP45
Type: 8-Speed Automatic Transmission
ZF No.: 1090 166XDZ
Marking: 2-18-15
Vehicle Application: BMW X1 E84

Please verify the identification number and VIN compatibility before ordering.