2023 BMW i4 Service and Repair Manual
2023 BMW i4 service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Designed for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and reference wiring diagrams and system sections quickly while you work.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Wiring diagrams and electrical sections
- Powertrain, brakes, steering, suspension, HVAC and more
Trims covered
- M50 Hatchback 4-Door
- eDrive40 Hatchback 4-Door
- M50 xDrive Hatchback 4-Door
- eDrive35 Hatchback 4-Door
Engines covered
- BATTERY EV (EV/BEV)
Index / Table of contents
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Hybrid & Electric Vehicle Systems
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Wiring Diagrams
BMW of North America, LLC (BMW) is recalling certain 2022-2023 iX xDrive50, iX M60, i4 eDrive40, i4 M50, and 2023 i760 xDrive hybrid electric vehicles. The high voltage battery combined charging unit
An improperly connected or assembled CCU can interrupt electrical power while driving and result in
Dealers will replace the high voltage battery combined charging unit (CCU), free of charge. Owner n
BMW of North America, LLC (BMW) is recalling certain 2022-2024 iX xDrive50 and 2023 i4 eDrive35, i4 eDrive40, and i4 M50 Hybrid Electric vehicles. The high voltage battery cell monitoring circuit may
An engine stall increases the risk of a crash.
Dealers will replace the high voltage battery cell monitoring circuit, free of charge. Owner notifi
BMW of North America, LLC (BMW) is recalling certain 2022-2023 i4 eDrive40 and iX xDrive50 electric vehicles. During vehicle start-up, the artificial sound generator control unit may experience a fau
Without external warning sounds, pedestrians may be unaware of an approaching vehicle, increasing th
Dealers will update the external artificial sound generator software, free of charge. Owner notific
BMW of North America, LLC (BMW) is recalling certain 2023 330i, 330i xDrive, M340i, M340i xDrive, M3, 330e, 330e xDrive, 430i Convertible, 430i xDrive, M440i, 2022-2023 430i, 430i xDrive, M440i xDrive
Doors that do not lock as intended while the vehicle is in motion may open during a crash, increasin
Dealers will update the ECU software, free of charge. Owner notification letters were mailed April
BMW of North America, LLC (BMW) is recalling certain 2022-2023 iX xDrive40, iX xDrive50, iX M60, i4 eDrive35, i4 eDrive40, i4 M50, and 2023 i7 xDrive60 vehicles. The high voltage battery electronic c
An interruption of electrical power may result in a sudden loss of drive power, increasing the risk
Dealers will update the high voltage battery ECU software, free of charge. Owner notification lette
While driving on rough surfaces, a tapping noise can be heard from the tailgate area
The customer states there is a Drivetrain Malfunction message displayed in the instrument cluster. In addition, the following fault memory entries are saved in the CCU (Combined Charging Unit) 0317F2 - High-voltage system, insulation fault
There is coolant leaking from under the car Low heater output Possible Check Control message Drive, you can continue driving (ID49) Possible fault codes stored in these BEV vehicles: 224163 Electric auxiliary heater for the high-voltage bat
A manufacturing defect in a bearing of the electronic drive unit could result in bearing damage. This is caused by an unusual acoustic signal in the area of the drive unit. The bearing could fail completely at a later stage, which will be d
Insufficient cooling power in the passenger area. The following faults may be stored: 0380CA - Malfunction or electrical fault of the heat pump circuit expansion valve detected E70C51 - Heat pump circuit changeover valve is not responding E
A faulty electric auxiliary heater may have been installed in the certain vehicles. This could result in thefailure of the electric auxiliary heater, utilized for the vehicle interior.
In certain driving situations there can be a loss of traction or wheel slip followed by a throttle or torque requirement that can potentially damage the axle shafts. Damage of the drive shaft can cause it to break.
Insufficient cooling power in the passenger area. The following faults may be stored: 0380CA - Malfunction or electrical fault of the heat pump circuit expansion valve detected E70C51 - Heat pump circuit changeover valve is not responding E
Showing the 8 most recent of 80 technical service bulletins on file with NHTSA.
MVA: [XXX] Sudden acceleration of vehicle. Brakes failed to work. Steering suddenly inoperative. Front passenger and I were injured. Vehicle damaged 3 other vehicles. One or more drivers whose vehicle
MVA: [XXX] Sudden acceleration of vehicle. Brakes failed to work. Steering suddenly inoperative. Front passenger and I were injured. Vehicle damaged 3 other vehicles. One or more drivers whose vehicle
MVA: [XXX] Sudden acceleration of vehicle. Brakes failed to work. Steering suddenly inoperative. Front passenger and I were injured. Vehicle damaged 3 other vehicles. One or more drivers whose vehicle
Showing the 3 most serious of 73 complaints filed with NHTSA.
