BMW i8 2014-2020 Electrical Specifications
Detailed technical specifications for the electrical systems of the 2014-2020 BMW i8, covering hybrid powertrain electronics, high-voltage battery systems, and advanced driver-assistance systems (ADAS).
Overview Specifications
Comprehensive description of the electrical specifications for the 2014-2020 BMW i8, including key features, measurements, and technical details
How to Use
Use the search function to locate specific electrical specifications by entering keywords such as 'battery voltage', 'charging system', or 'wiring diagrams'.
Navigate through the electrical documentation sections using the table of contents or by scrolling through the document. Each major section is clearly labeled for easy access.
Key Specifications
High-Voltage Battery Voltage
355 V
Electric Motor Power
362 hp (266 kW)
Charging Time (0-80%)
2.5 hours (AC)
Electric-Only Range
37 km (NEDC)
12V Battery Capacity
20 Ah
Available Specifications
High-Voltage Battery System
Detailed information about the high-voltage battery system, including its components, specifications, and safety features.
High-Voltage Battery System
Detailed information about the high-voltage battery system, including its components, specifications, and safety features.
Battery Specifications
- Lithium-ion battery with a nominal voltage of 355 V
- Total energy capacity of 11.6 kWh
- Battery weight: 130 kg
- Operating temperature range: -20°C to 50°C
Charging System
- AC charging power: 3.7 kW
- DC fast charging power: up to 50 kW
- Charging time (0-80%): 2.5 hours (AC), 30 minutes (DC)
- Charging connector type: Type 2 (IEC 62196)
Note: Ensure the vehicle is parked in a well-ventilated area during charging to prevent overheating.
Electric Drive System
Technical details about the electric drive system, including motor specifications and performance metrics.
Electric Drive System
Technical details about the electric drive system, including motor specifications and performance metrics.
Electric Motor Specifications
- Front electric motor power output: 131 hp (96 kW)
- Rear electric motor power output: 231 hp (170 kW)
- Combined system output: 362 hp (266 kW)
- Maximum torque: 570 Nm
Performance Metrics
- 0-100 km/h acceleration: 4.4 seconds
- Top speed: 250 km/h (electronically limited)
- Electric-only range: 37 km (NEDC)
- Energy consumption: 11.9 kWh/100 km
Low-Voltage Electrical System
Information about the 12V low-voltage electrical system, including battery specifications and auxiliary components.
Low-Voltage Electrical System
Information about the 12V low-voltage electrical system, including battery specifications and auxiliary components.
12V Battery Specifications
- 12V lithium-ion auxiliary battery
- Battery capacity: 20 Ah
- Voltage: 12 V
- Weight: 5.5 kg
Auxiliary Components
- 12V power outlets: 2 (front and rear)
- USB charging ports: 2 (front)
- LED lighting system with adaptive headlights
- Electric power steering system
Note: The 12V battery is charged by the high-voltage battery system when the vehicle is in operation.
Wiring and Connectors
Details about the wiring harnesses, connectors, and electrical interfaces used in the BMW i8.
Wiring and Connectors
Details about the wiring harnesses, connectors, and electrical interfaces used in the BMW i8.
Wiring Harness Specifications
- High-voltage wiring harness: 600V rated
- Low-voltage wiring harness: 12V rated
- Total length of wiring: approximately 2.5 km
- Connector types: AMP Superseal, Deutsch DT
Electrical Interfaces
- CAN bus communication system
- Ethernet-based diagnostic interface
- High-speed data transfer for infotainment system
- Integrated safety systems for short-circuit protection
Note: Always disconnect the high-voltage system before performing any electrical maintenance.
Search Specifications
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Component Specifications
Battery System
- Type
- Lithium-ion
- Capacity
- 11.6 kWh
- Voltage
- 355 V
- Energy Density
- 125 Wh/kg
- Operating Temperature
- -20°C to 50°C
- Part Number
- 61 21 2 365 789
- Cross References
-
- electric_motor
- charging_system
Electric Motor
- Type
- Synchronous AC
- Power Output
- 131 hp
- Torque
- 184 lb-ft
- Max Rpm
- 11400 rpm
- Efficiency
- 93%
- Part Number
- 61 21 2 365 790
- Cross References
-
- battery_system
- power_electronics
Charging System
- Charging Type
- AC Level 2
- Charging Power
- 3.7 kW
- Charging Time
- 2.5 hours (0-80%)
- Charging Voltage
- 220-240 V
- Charging Current
- 16 A
- Part Number
- 61 21 2 365 791
- Cross References
-
- battery_system
- power_electronics
Power Electronics
- inverter Type
- IGBT
- Max Output Power
- 170 kW
- Efficiency
- 95%
- Cooling Method
- Liquid-cooled
- Operating Temperature
- -40°C to 85°C
- Part Number
- 61 21 2 365 792
- Cross References
-
- electric_motor
- charging_system
12v Auxiliary Battery
- Type
- Lead-acid
- Capacity
- 70 Ah
- Voltage
- 12 V
- Cranking Amps
- 760 A
- Part Number
- 61 21 2 365 793
- Cross References
-
- battery_system
- electrical_accessories
Electrical Accessories
- Headlights
- LED
- Power Windows
- 12 V DC motor
- Climate Control
- Electric compressor
- infotainment System
- 10.2-inch touchscreen
- Part Number
- 61 21 2 365 794
- Cross References
-
- 12v_auxiliary_battery
- charging_system
Wiring Harness
- Material
- Copper
- insulation
- PVC
- Voltage Rating
- 600 V
- Temperature Rating
- -40°C to 125°C
- Part Number
- 61 21 2 365 795
- Cross References
-
- battery_system
- electric_motor
Safety Systems
- High Voltage Cutoff
- 400 V
- insulation Monitoring
- Yes
- Crash Sensor
- Integrated
- Emergency Shutdown
- Automatic
- Part Number
- 61 21 2 365 796
- Cross References
-
- battery_system
- power_electronics
Diagnostic System
- Diagnostic Port
- OBD-II
- Diagnostic Codes
- ISO 14229
- Software Version
- ISTA 4.30
- Update Method
- USB/OTA
- Part Number
- 61 21 2 365 797
- Cross References
-
- battery_system
- electric_motor
Regenerative Braking
- Type
- Electro-hydraulic
- Energy Recovery Rate
- 80%
- Max Braking Power
- 60 kW
- Operating Temperature
- -20°C to 150°C
- Part Number
- 61 21 2 365 798
- Cross References
-
- battery_system
- electric_motor
Service Information Service
Detailed service requirements and schedules for the BMW i8 electrical system
- Inspect high-voltage battery connections
- Check 12V auxiliary battery condition
- Test charging system functionality
Ensure all high-voltage systems are deactivated before service
- Replace cabin air filter
- Inspect wiring harness for wear
- Update diagnostic software
Use only BMW-approved diagnostic tools
- Replace 12V auxiliary battery
- Inspect regenerative braking system
- Check power electronics cooling system
High-voltage components should only be serviced by certified technicians
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What is the voltage of the BMW i8's high-voltage battery system?
What is the voltage of the BMW i8's high-voltage battery system?
The BMW i8's high-voltage battery system operates at a nominal voltage of 355 volts. The lithium-ion battery has a capacity of 11.6 kWh and is designed to support both the electric motor and the hybrid powertrain.
Q2 What is the maximum charging power for the BMW i8's battery?
What is the maximum charging power for the BMW i8's battery?
The BMW i8 supports a maximum charging power of 3.7 kW when using a Level 2 (240V) charging station. A full charge typically takes approximately 2.5 hours under optimal conditions.
Q3 What is the output of the electric motor in the BMW i8?
What is the output of the electric motor in the BMW i8?
The BMW i8's electric motor delivers a maximum output of 131 horsepower (96 kW) and 184 lb-ft of torque. This motor powers the front wheels and works in conjunction with the turbocharged 1.5-liter gasoline engine.
Q4 How does the BMW i8's regenerative braking system work?
How does the BMW i8's regenerative braking system work?
The BMW i8 features a regenerative braking system that converts kinetic energy into electrical energy during deceleration. This energy is stored in the high-voltage battery, improving overall efficiency. The system is adjustable via the driving mode settings.
Q5 What is the range of the BMW i8 in pure electric mode?
What is the range of the BMW i8 in pure electric mode?
The BMW i8 has an all-electric range of up to 18 miles (29 km) under ideal conditions. This range may vary based on driving style, temperature, and other factors.
Q6 What type of charging connector does the BMW i8 use?
What type of charging connector does the BMW i8 use?
The BMW i8 uses a Type 2 (IEC 62196) charging connector for AC charging. This connector is standard for Level 1 and Level 2 charging in Europe and other regions.
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 i8 High-Voltage Battery Technical Manual
Coming SoonDetailed technical documentation on the high-voltage battery system, including specifications, maintenance, and safety procedures.
BMW i8 Charging Guide
Coming SoonComprehensive guide to charging the BMW i8, including compatible charging stations, charging times, and troubleshooting tips.
BMW i8 Electrical System Overview
Coming SoonAn overview of the BMW i8's electrical architecture, including the hybrid powertrain, battery management system, and regenerative braking.
BMW i8 Service and Maintenance Schedule
Coming SoonOfficial service and maintenance schedule for the BMW i8, including electrical system inspections and battery health checks.
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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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