Ford Flex coolant capacity
Total cooling-system coolant capacity for the Ford Flex, by generation and engine, in quarts and liters.
| Engine | Capacity | Liters |
|---|---|---|
| 3.5 EcoBoost V6 AWD | 13.7 qt | 13 L |
| 3.5 V6 AWD | 13.2 qt | 12.5 L |
Capacity is the full cold-fill for the whole system. Top up to the marked level and use the coolant type specified in your owner's manual. Source.