Hyundai IONIQ 6, CE EV (USA)
Coolant capacity & service interval
Hyundai IONIQ 6, CE EV (USA) coolant capacity ranges from 6,26 to 13,1 liters. Service intervals consist of 25000 miles/24 months and 120000 miles/120 months. The data covers 12 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
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Additional Notes
- The Hyundai IONIQ 6 CE EV (USA) carries two separate coolant circuits: one serving the electric motor and one serving the high voltage battery. Each circuit holds a distinct volume, and both are serviced through the cooling system accessed at the hot radiator emblem cap.
- AWD configurations across all battery variants hold 6.54 liters in the electric motor cooling circuit, while RWD configurations hold a slightly smaller 6.26 liters. The difference of 0.28 liters reflects the additional thermal management demands of a dual-motor AWD drivetrain.
- The high voltage battery cooling circuit capacity is listed as a range rather than a fixed value. AWD variants specify 12.6-13.1 liters, and RWD variants specify 12.5-13.1 liters. A range value of this kind typically accounts for air pockets and variation in fill procedure, meaning the actual retained volume depends on how thoroughly the system is bled during service.
- Under normal use conditions, the coolant change interval is set at 25,000 miles or 24 months, whichever comes first. This interval applies uniformly across all battery sizes, power outputs, and drivetrain configurations listed in the specifications.
- A separate first-change-only interval of 120,000 miles or 120 months is specified alongside the normal interval. A first-change-only designation means the coolant installed at the factory is formulated to last significantly longer before its initial replacement, after which the standard 25,000-mile/24-month cycle applies.
- The 53 kWh battery variants are listed for model years 2022-2023, while the 77 kWh variants in both power outputs (168 kW and 239 kW) carry a starting year of 2022. Despite the difference in battery capacity, all variants share identical coolant change intervals and the same circuit capacity values within their respective drivetrain types.
- The 77 kWh AWD configurations are available in two distinct power outputs, 168 kW and 239 kW, yet both share the same electric motor coolant capacity of 6.54 liters and the same high voltage battery coolant range of 12.6-13.1 liters. The higher output does not alter the specified fluid volumes for either circuit.