BMW i4, G26 (USA)
Coolant capacity & service interval
BMW i4, G26 (USA) coolant specifications cover a fluid capacity of 25 liters. Four configurations are included in the data.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| i4 xDrive40 (2023-2024) |
|
| i4 eDrive35 (2022-2024) |
|
| i4 eDrive40 (2021-2024) |
|
| i4 M50 (2021-2024) |
|
Additional Notes
- The BMW i4 G26 (USA) cooling system capacity is 25 liters across all listed variants, which is a notably large volume reflecting the thermal management demands of high-voltage electric drivetrains.
- A 25-liter cooling system capacity in an electric vehicle typically accounts for multiple cooling circuits, including those serving the battery pack, power electronics, and electric motors, rather than a single combustion engine loop.
- The i4 M50 carries the 25-liter cooling system capacity across its full 2021-2024 model year span, consistent with the dual-motor performance configuration requiring extensive thermal regulation.
- The i4 eDrive35 shares the same 25-liter capacity as the other variants, with specifications covering the 2022-2024 model years.
- The i4 eDrive40 and i4 M50 both carry the 25-liter figure from 2021 onward, making them the earliest listed variants in the G26 lineup by model year.
- The i4 xDrive40 enters the specifications at the 2023 model year with the same 25-liter cooling system capacity, reflecting the all-wheel-drive dual-motor layout introduced in that year.
- All four variants are specified under normal use conditions for the 25-liter cooling system fill, indicating the capacity figure applies to standard operating environments rather than a severe-duty or first-fill scenario.