BMW i3 2014-present

BMW i3 2014-present Electrical Specifications

Detailed technical specifications for the 2014-Present BMW i3 electrical system, including high-voltage components, charging systems, and diagnostic information. Essential for technicians and enthusiasts.

Updated Oct 24, 2023

Overview Specifications

Comprehensive description of the electrical specifications for the 2014-Present BMW i3, including key features, measurements, and technical details. This section covers the vehicle's high-voltage electrical system, battery specifications, charging system, and onboard electronics.

How to Use

Use the search function to locate specific electrical specifications by entering keywords such as 'battery capacity', 'charging voltage', or 'motor power'.

Navigate through the electrical documentation sections using the table of contents or by scrolling through the major sections and subsections.

Key Specifications

Battery Capacity

22 kWh (2014-2016), 33 kWh (2017-Present)

Motor Power

125 kW (168 hp)

Charging Time (AC)

4 hours (22 kWh), 5.5 hours (33 kWh)

DC Fast Charging Time

30 minutes (10-80%)

Operating Voltage

360 V DC

Available Specifications

High-Voltage Electrical System

Details about the high-voltage components, including the electric motor, power electronics, and safety systems.

Electric Motor Specifications

Permanent magnet synchronous motor (PMSM)
Maximum power output: 125 kW (168 hp)
Maximum torque: 250 Nm (184 lb-ft)
Operating voltage: 360 V DC

Power Electronics

Integrated power electronics module (PEM)
Efficiency: > 95% under optimal conditions
Cooling system: Liquid-cooled
Inverter output current: 400 A

Note: The PEM is responsible for converting DC power from the battery to AC power for the motor.

Battery System

Technical details about the lithium-ion battery pack, including capacity, charging, and thermal management.

Battery Capacity and Configuration

Battery type: Lithium-ion
Total capacity: 22 kWh (2014-2016), 33 kWh (2017-Present)
Number of cells: 96 (8 modules of 12 cells each)
Nominal voltage: 360 V DC

Thermal Management

Active liquid cooling and heating system
Operating temperature range: -30°C to 50°C
Battery heating power: 2 kW
Cooling power: 5 kW

Note: The thermal management system ensures optimal battery performance and longevity.

Charging System

Information about the onboard charger, charging ports, and charging times.

Onboard Charger

Charging power: 7.4 kW (AC)
Charging voltage: 220-240 V AC
Charging current: 32 A
Charging time (0-100%): 4 hours (22 kWh), 5.5 hours (33 kWh)

DC Fast Charging

DC charging power: Up to 50 kW
Charging voltage: 400-500 V DC
Charging time (10-80%): 30 minutes
Compatible with CCS (Combined Charging System)

Note: DC fast charging is available on models equipped with the optional DC fast charging package.

Onboard Electronics

Details about the vehicle's electronic control units (ECUs), sensors, and infotainment system.

Electronic Control Units (ECUs)

Number of ECUs: Over 30
Main ECU: Central Gateway Module (CGM)
Communication protocol: CAN bus
Software updates: Over-the-air (OTA) capability

Infotainment System

Display size: 10.25-inch touchscreen
Operating system: BMW iDrive 6.0 (2014-2018), iDrive 7.0 (2019-Present)
Navigation system: Standard with real-time traffic updates
Connectivity: Bluetooth, Wi-Fi, and LTE

Note: The infotainment system supports smartphone integration via Apple CarPlay and Android Auto.

Search Specifications

Search by specification name, value, or description

Component Specifications

Battery System

Battery Type: Lithium-ion

Nominal Voltage: 360 V

Capacity: 94 Ah

Energy Content: 33.2 kWh

Operating Temperature Range: -20°C to 60°C

Part Number: 61 21 2 352 123

Cross References

Battery Management System
High Voltage Cables

Charging System

Onboard Charger Power: 7.4 kW

Charging Time 0 100 AC: 4.5 hours

Charging Time 0 80 DC: 30 minutes

Charging Voltage Range: 200 V to 500 V

Charging Current Max: 32 A

Part Number: 61 31 2 352 456

Cross References

Charging Port
High Voltage Battery

Electric Motor

Motor Type: Synchronous AC

Max Power: 125 kW

Max Torque: 250 Nm

Operating Voltage: 360 V

Efficiency: 93%

Part Number: 61 11 2 352 789

Cross References

Inverter
Transmission

inverter

input Voltage: 360 V

Output Voltage: 360 V

Max Current: 400 A

Switching Frequency: 10 kHz

Cooling Method: Liquid-cooled

Part Number: 61 41 2 352 321

Cross References

Electric Motor
Battery System

High Voltage Cables

Cable Type: Shielded High Voltage

Voltage Rating: 600 V

Current Rating: 400 A

Length: 2.5 m

insulation Material: Silicone Rubber

Part Number: 61 51 2 352 654

Cross References

Battery System
Inverter

Battery Management System

Microcontroller: 32-bit ARM Cortex

Voltage Monitoring Accuracy: ±10 mV

Temperature Monitoring Range: -40°C to 85°C

Communication Protocol: CAN Bus

Part Number: 61 61 2 352 987

Cross References

Battery System
Inverter

Dc Dc Converter

input Voltage: 360 V

Output Voltage: 12 V

Max Output Current: 180 A

Efficiency: 92%

Cooling Method: Air-cooled

Part Number: 61 71 2 352 135

Cross References

12V Battery
High Voltage System

12v Battery

Battery Type: AGM

Capacity: 70 Ah

Voltage: 12 V

Cold Cranking Amps: 760 A

Part Number: 61 21 2 352 246

Cross References

DC-DC Converter
Electrical Accessories

Charging Port

Connector Type: Type 2 (IEC 62196)

Charging Mode: AC and DC

Locking Mechanism: Electromechanical

Part Number: 61 31 2 352 579

Cross References

Onboard Charger
High Voltage Cables

Electrical Accessories

Power Windows: 12 V, 20 A

Power Seats: 12 V, 30 A

infotainment System: 12 V, 15 A

Climate Control: 12 V, 25 A

Part Numbers

61 81 2 352 864
61 81 2 352 865
61 81 2 352 866

Cross References

12V Battery
DC-DC Converter

Service Information Service

Detailed service requirements and schedules for the BMW i3 electrical system

10000

Inspect high voltage battery connections
Check 12V battery condition
Test charging port functionality

Ensure all high voltage systems are de-energized before service

20000

Perform battery management system diagnostics
Inspect DC-DC converter operation
Check high voltage cable insulation

Use BMW-approved diagnostic tools for system checks

30000

Replace 12V battery if necessary
Inspect and clean charging port
Verify inverter cooling system operation

Follow BMW service procedures for high voltage system maintenance

Frequently Asked Questions

Find answers to common questions about torque specifications

What is the voltage of the BMW i3's high-voltage battery?

The BMW i3's high-voltage battery operates at a nominal voltage of 360 volts. The battery capacity varies depending on the model year, with the 2014-2016 models featuring a 22 kWh battery and later models offering a 33 kWh or 42.2 kWh option.

What is the charging time for the BMW i3 using a Level 2 charger?

Using a Level 2 charger (240V), the BMW i3 can be fully charged in approximately 4-5 hours for the 22 kWh battery, 5-6 hours for the 33 kWh battery, and 6-7 hours for the 42.2 kWh battery. Charging times may vary based on ambient temperature and battery condition.

What is the maximum DC fast charging rate for the BMW i3?

The BMW i3 supports DC fast charging at a maximum rate of 50 kW. This allows the battery to charge from 0% to 80% in approximately 40 minutes for the 33 kWh and 42.2 kWh models, depending on external conditions.

What is the range of the BMW i3 on a full charge?

The range of the BMW i3 varies by model year and battery capacity. The 2014-2016 models with a 22 kWh battery offer an EPA-estimated range of 81 miles. Later models with a 33 kWh battery provide up to 114 miles, and the 42.2 kWh battery extends the range to approximately 153 miles.

What type of electric motor does the BMW i3 use?

The BMW i3 is equipped with a synchronous electric motor with a maximum output of 170 horsepower (125 kW) and 184 lb-ft of torque. The motor is powered by the high-voltage lithium-ion battery and drives the rear wheels.

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 i3 High-Voltage Battery Technical Guide

Coming Soon

Detailed technical specifications and maintenance procedures for the BMW i3 high-voltage battery system.

Charging Infrastructure Compatibility for BMW i3

Coming Soon

A comprehensive guide to compatible charging stations, connectors, and charging protocols for the BMW i3.

BMW i3 Electrical System Safety Manual

Coming Soon

Safety guidelines and procedures for working with the BMW i3's electrical systems, including high-voltage components.

BMW i3 Warranty and Maintenance Schedule

Coming Soon

Official warranty information and recommended maintenance schedule for the BMW i3's electrical components.

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