Kia EV6, CV (USA / CAN)
Coolant capacity & service interval
Kia EV6, CV (USA / CAN) coolant capacity ranges from 6,7 to 12,7 liters. Service intervals include 24000 miles/ 24 months and 120000 miles/ 120 months. The data covers 24 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
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Additional Notes
- The Kia EV6 cooling system specifications cover two separate circuits: one for the electric motor and one for the high voltage battery. Each circuit carries its own capacity figure, reflecting the physically distinct cooling loops used in battery electric vehicles to manage heat in the drivetrain and the battery pack independently.
- RWD configurations across the 58 kWh and 77 kWh battery variants share an electric motor cooling capacity of 6.7 liters, while AWD configurations across the 77 kWh variants, including the 168 kW, 239 kW, and GT 430 kW outputs, specify 6.9 liters for the electric motor circuit. The additional 0.2 liters in AWD models corresponds to the presence of a second motor and its associated cooling passages.
- The high voltage battery cooling capacity is listed as a range of 11 to 12.7 liters across all configurations. A range rather than a fixed value typically reflects variation introduced during the fill process, such as air pockets in the circuit that affect how much fluid the system accepts before reaching full capacity.
- Under normal use conditions, the coolant change interval is 24,000 miles or 24 months, whichever comes first. This two-year cycle applies uniformly across all EV6 configurations and both cooling circuits.
- A separate "first change only" interval of 120,000 miles or 120 months is specified alongside the normal interval. This extended interval applies exclusively to the initial factory fill, after which the standard 24,000-mile or 24-month cycle governs subsequent changes.
- The specifications distinguish between two reservoir cap types: a hot radiator emblem cap and a mechanic emblem cap with blue fluid. Both cap types appear across all configurations with identical capacity and interval figures, indicating the cap type identifies the reservoir rather than a difference in fluid volume or service schedule.
- The GT variant, rated at 430 kW AWD, shares the same 6.9-liter electric motor capacity and 11 to 12.7-liter battery capacity as the other 77 kWh AWD configurations. Despite the substantially higher power output, the cooling circuit fill volumes align with the other dual-motor 77 kWh variants.