Hyundai IONIQ 6, CE EV (EU)
Coolant capacity & service interval
Hyundai IONIQ 6, CE EV (EU) coolant capacity ranges from 6,26 to 13,1 liters. Service intervals include 40000 km/ 24 months and 200000 km/ 120 months. The data covers 6 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 (EU) carries two separate coolant circuits, one serving the electric motor and one serving the high voltage battery, each with its own listed capacity.
- For the 53 kWh (111 kW) RWD and 77 kWh (168 kW) RWD variants, the electric motor cooling circuit holds 6.26 liters, while the high voltage battery circuit holds between 12.5 and 13.1 liters.
- The AWD variant rated at 239 kW carries a slightly larger electric motor coolant capacity of 6.54 liters, compared to 6.26 liters in both RWD configurations, reflecting the addition of a front motor unit.
- The high voltage battery circuit on the 239 kW AWD is specified at 12.6-13.1 liters, a marginally narrower lower bound than the 12.5-13.1 liter range listed for the two RWD variants.
- The range given for the high voltage battery circuit capacity, rather than a single fixed value, is typical of systems where residual fluid volume after draining can vary, meaning the upper figure represents a full overhaul fill.
- Under normal use conditions, all three variants share a coolant change interval of 40,000 km or 24 months, whichever comes first.
- A first change only interval of 200,000 km or 120 months is listed across all three variants, indicating the initial factory-fill coolant is formulated for significantly extended service before the standard recurring interval takes over.
- The 120-month first change interval equals 10 years, which aligns with long-life coolant formulations commonly used in modern electric vehicle thermal management systems at the factory fill stage.
- All rows carry the note referencing a hot radiator emblem cap, indicating the coolant system access point on the IONIQ 6 is located behind or integrated with the front emblem, a design feature relevant to safe servicing procedure.