2018 Ford Flex coolant capacity

The 2018 Ford Flex holds about 13.2 to 13.7 quarts of coolant, depending on the engine - the full cooling-system capacity when cold.

Key takeaways

  • The 2018 Ford Flex holds about 13.2 to 13.7 quarts of coolant total, depending on engine.
  • This is the full cooling-system fill with the engine cold.
  • Refill to the marked level, and use the coolant type your owner's manual specifies.
Coolant capacity by engine
EngineCapacityLiters
3.5 EcoBoost V6 AWD13.7 qt13 L
3.5 V6 AWD13.2 qt12.5 L
When refilling, add coolant to the marked level rather than forcing in the full figure. Source.

All Flex coolant capacities →