BMW X1 2015-2021 Drivetrain Specifications
Detailed technical specifications and documentation for the 2015-2021 BMW X1 drivetrain system, including engine, transmission, xDrive system, differential, and axle components. Ideal for technicians and enthusiasts.
Overview Specifications
Comprehensive description of the drivetrain specifications for the 2015-2021 BMW X1, including key features, measurements, and technical details
How to Use
Use the search function to locate specific drivetrain components or specifications by entering keywords such as 'transmission type', 'drive system', or 'torque distribution'.
Navigate through the drivetrain documentation by selecting the relevant section from the table of contents or using the sidebar menu to jump to specific subsections.
Key Specifications
Transmission Type
8-speed Steptronic automatic
Drive System
xDrive AWD (standard)
Engine Power
228 hp @ 5000 rpm
Torque
258 lb-ft @ 1450 rpm
Fuel Tank Capacity
16.1 gallons
Available Specifications
Transmission System
Details about the transmission system, including type, gear ratios, and performance characteristics
Transmission System
Details about the transmission system, including type, gear ratios, and performance characteristics
Transmission Type
- 8-speed Steptronic automatic transmission
- Optional 6-speed manual transmission for select models
- Electronic gear selector with manual shift mode
- Adaptive shift logic for optimized performance
Gear Ratios
- 1st gear: 4.714:1
- 2nd gear: 3.143:1
- 3rd gear: 2.106:1
- 4th gear: 1.667:1
- 5th gear: 1.285:1
Note: Gear ratios may vary slightly depending on the engine and drivetrain configuration.
Drive System
Information about the drive system, including all-wheel drive (xDrive) and front-wheel drive configurations
Drive System
Information about the drive system, including all-wheel drive (xDrive) and front-wheel drive configurations
xDrive All-Wheel Drive
- Standard on most models
- Torque distribution: 0-100% front to rear
- Dynamic Stability Control (DSC) integration
- Electronically controlled multi-plate clutch
Front-Wheel Drive
- Available on select base models
- Improved fuel efficiency compared to xDrive
- Reduced weight for better handling
- Standard DSC for traction control
Differential and Axles
Technical details about the differential and axle configurations
Differential and Axles
Technical details about the differential and axle configurations
Front Axle
- Type: Independent MacPherson strut
- Wheel travel: 150 mm
- Stabilizer bar diameter: 24 mm
- Anti-roll bar for improved stability
Rear Axle
- Type: Independent multi-link
- Wheel travel: 160 mm
- Stabilizer bar diameter: 20 mm
- Integrated differential for xDrive models
Note: Rear axle specifications may vary depending on the drivetrain configuration.
Drivetrain Performance
Performance metrics and specifications for the drivetrain
Drivetrain Performance
Performance metrics and specifications for the drivetrain
Acceleration and Top Speed
- 0-60 mph: 6.3 seconds (xDrive28i)
- Top speed: 130 mph (electronically limited)
- Engine power delivery: 228 hp @ 5000 rpm
- Torque: 258 lb-ft @ 1450 rpm
Fuel Efficiency
- City: 22 mpg
- Highway: 32 mpg
- Combined: 26 mpg
- Fuel tank capacity: 16.1 gallons
Note: Fuel efficiency figures are based on EPA estimates and may vary with driving conditions.
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Component Specifications
Transmission
- Type
- 8-speed automatic (Steptronic)
- Model
- GA8HP45Z
- Fluid Capacity
- 9.5 liters
- Fluid Type
- BMW ATF 3+
- Part Number
- 83222409783
- Operating Temperature Range
- -40°C to 150°C
- Shift Pressure
- 4.5-6.0 bar
- Torque Capacity
- 450 Nm
Transfer Case
- Type
- All-wheel drive (xDrive)
- Model
- VTG 350
- Fluid Capacity
- 0.8 liters
- Fluid Type
- BMW TF0870
- Part Number
- 83222409784
- Operating Temperature Range
- -40°C to 120°C
- Torque Split
- 40:60 (front:rear)
Differential
- Front
- Type: Open differentialFluid Capacity: 1.2 litersFluid Type: BMW SAF-XOPart Number: 83222409785Operating Temperature Range: -40°C to 120°C
- Rear
- Type: Limited-slip differentialFluid Capacity: 1.2 litersFluid Type: BMW SAF-XOPart Number: 83222409786Operating Temperature Range: -40°C to 120°C
Driveshaft
- Material
- High-strength steel
- Length
- 1.5 meters
- Diameter
- 80 mm
- Part Number
- 26107553801
- Torque Capacity
- 600 Nm
- Operating Temperature Range
- -40°C to 120°C
Axles
- Front
- Type: CV jointPart Number: 31207553802Torque Capacity: 450 NmOperating Temperature Range: -40°C to 120°C
- Rear
- Type: CV jointPart Number: 31207553803Torque Capacity: 450 NmOperating Temperature Range: -40°C to 120°C
Clutch
- Type
- Dual-mass flywheel
- Part Number
- 21207553804
- Torque Capacity
- 450 Nm
- Operating Temperature Range
- -40°C to 120°C
- Wear Limit
- 2 mm
Propeller Shaft
- Material
- Aluminum
- Length
- 1.2 meters
- Diameter
- 70 mm
- Part Number
- 26107553805
- Torque Capacity
- 600 Nm
- Operating Temperature Range
- -40°C to 120°C
Mounts
- Engine
- Type: HydraulicPart Number: 22107553806Torque Capacity: 450 NmOperating Temperature Range: -40°C to 120°C
- Transmission
- Type: HydraulicPart Number: 22107553807Torque Capacity: 450 NmOperating Temperature Range: -40°C to 120°C
Sensors
- Speed Sensor
- Type: Hall effectPart Number: 34527553808Operating Temperature Range: -40°C to 120°COutput Signal: PWM
- Temperature Sensor
- Type: NTC thermistorPart Number: 34527553809Operating Temperature Range: -40°C to 120°COutput Signal: Analog
Diagnostics
- Error Codes
-
- P0700 - Transmission Control System (MIL Request)
- P0715 - Input/Turbine Speed Sensor Circuit Malfunction
- P0720 - Output Speed Sensor Circuit Malfunction
- Diagnostic Tool
- BMW ISTA
- Diagnostic interface
- OBD-II
Service Information Service
Detailed service requirements and schedules for the drivetrain system
- Transmission fluid and filter replacement
- Transfer case fluid replacement
- Differential fluid replacement
- Driveshaft inspection
- Axle boot inspection
Use only BMW-approved fluids and parts
- Transmission fluid and filter replacement
- Transfer case fluid replacement
- Differential fluid replacement
- Driveshaft inspection
- Axle boot inspection
- Clutch inspection
Inspect for wear and replace as necessary
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What type of drivetrain does the 2015-2021 BMW X1 use?
What type of drivetrain does the 2015-2021 BMW X1 use?
The 2015-2021 BMW X1 is equipped with an all-wheel-drive (AWD) system known as BMW xDrive. This system dynamically distributes power between the front and rear axles, with a default torque split of 40:60 (front:rear) under normal driving conditions. It can adjust torque distribution up to 100% to either axle based on traction requirements.
Q2 What is the maximum torque capacity of the drivetrain?
What is the maximum torque capacity of the drivetrain?
The drivetrain in the 2015-2021 BMW X1 is designed to handle a maximum torque of up to 500 Nm (369 lb-ft), depending on the engine variant. For example, the xDrive28i model with the 2.0L turbocharged engine produces 350 Nm (258 lb-ft) of torque.
Q3 How often should the transfer case fluid be replaced?
How often should the transfer case fluid be replaced?
BMW recommends inspecting the transfer case fluid every 60,000 miles (96,000 km) and replacing it if necessary. However, under severe driving conditions (e.g., frequent off-road use or towing), it may require more frequent servicing. Always refer to the vehicle's service manual for specific intervals.
Q4 Can the xDrive system be disabled?
Can the xDrive system be disabled?
No, the xDrive system in the 2015-2021 BMW X1 cannot be fully disabled. It is a permanent all-wheel-drive system designed to optimize traction and stability. However, the Dynamic Stability Control (DSC) system can be partially deactivated to allow for limited wheel slip in specific driving conditions.
Q5 What is the recommended tire size for the drivetrain?
What is the recommended tire size for the drivetrain?
The recommended tire size for the 2015-2021 BMW X1 varies by trim and wheel option. Common sizes include 225/50R18 for base models and 225/45R19 or 245/40R19 for higher trims. Using non-recommended tire sizes can affect drivetrain performance and void warranty coverage.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
BMW xDrive System Overview
Coming SoonA detailed guide explaining the functionality and benefits of the BMW xDrive all-wheel-drive system.
Transfer Case Maintenance Guide
Coming SoonStep-by-step instructions for inspecting and servicing the transfer case in the BMW X1.
Drivetrain Warranty Information
Coming SoonOfficial BMW warranty details for the drivetrain components, including coverage terms and limitations.
Tire and Wheel Compatibility Chart
Coming SoonA comprehensive chart listing approved tire and wheel sizes for the 2015-2021 BMW X1.
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Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
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