Mercury Mystique
Coolant capacity & service interval
Mercury Mystique coolant capacity ranges from 6,6 to 9,7 liters. Service intervals include checks at 15000 miles or 6 months and changes at 45000 miles. The data covers 4 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| Mystique 2.0 16V (1997-2000) |
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| Mystique 2.5 V6 24V (1997-2000) |
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| Mystique 2.0 16V (1994-1997) |
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| Mystique 2.5 V6 24V (1994-1997) |
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Additional Notes
- The Mercury Mystique cooling system capacity differs notably between the 2.0 16V and 2.5 V6 24V engines. The four-cylinder holds 7.1 liters with an automatic transaxle or 6.6 liters with a manual transaxle, while the V6 holds 9.7 liters with an automatic transaxle or 9.5 liters with a manual transaxle.
- The larger V6 24V figures of 9.7 and 9.5 liters reflect the greater total coolant volume a six-cylinder engine block and its associated passages require compared to a four-cylinder, which accounts for the roughly 2.6-liter difference between the two engine families.
- Across both the 2.0 16V and 2.5 V6 24V configurations, the transaxle type produces a measurable difference in cooling system capacity. The automatic transaxle variant consistently holds more coolant than the manual transaxle variant, indicating the automatic unit incorporates a transmission fluid cooler routed through the cooling circuit.
- The 0.2-liter gap between the V6 automatic (9.7 liters) and V6 manual (9.5 liters) is narrower than the 0.5-liter gap seen between the 2.0 16V automatic (7.1 liters) and manual (6.6 liters), suggesting a proportionally smaller cooler circuit contribution in the V6 automatic configuration.
- Under normal use conditions, the coolant check interval for all four configurations is set at 15,000 miles or 6 months, whichever comes first. The dual-trigger structure means time elapsed can prompt a check even when mileage accumulation is low.
- The coolant change interval under normal use conditions is 45,000 miles across all listed configurations. At that mileage threshold, the full cooling system capacity figures of 7.1, 6.6, 9.7, or 9.5 liters represent the volume of coolant that would be replaced during a complete drain and refill service.
- The 1994-1997 and 1997-2000 specification rows for both the 2.0 16V and 2.5 V6 24V carry identical capacity and interval values, meaning no change in cooling system specifications was introduced at the 1997 model year boundary for either engine.