SsangYong Rexton, Y400/Y450

Coolant capacity & service interval

SsangYong Rexton, Y400/Y450 coolant capacity is 10,2 liters. Service intervals include checks at 20000 km or 12 months and changes at 200000 km or 60 months. The data covers 4 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
Rexton e-XDi220 2WD, Y450 (2021- )
  • Use: Normal
  • Capacity 10,2 liter
  • Check 20000 km/ 12 months
  • Change 200000 km/ 60 months
Rexton e-XDi220 4WD, Y450 (2021- )
  • Use: Normal
  • Capacity 10,2 liter
  • Check 20000 km/ 12 months
  • Change 200000 km/ 60 months
Rexton e-XDi220 2WD, Y400 (2017-2021)
  • Use: Normal
  • Capacity 10,2 liter
  • Check 20000 km/ 12 months
  • Change 200000 km/ 60 months
Rexton e-XDi220 4WD, Y400 (2017-2021)
  • Use: Normal
  • Capacity 10,2 liter
  • Check 20000 km/ 12 months
  • Change 200000 km/ 60 months

Additional Notes

  • The SsangYong Rexton e-XDi220 cooling system holds 10.2 liters across all listed configurations, covering both 2WD and 4WD variants in the Y400 and Y450 generations.
  • A 10.2-liter cooling system capacity is consistent with a mid-size diesel SUV, reflecting the volume needed to circulate coolant through the engine block, cylinder head, heater core, and radiator.
  • Under normal use conditions, the coolant check interval is set at 20,000 km or 12 months, whichever comes first, applying equally to both the Y400 (2017-2021) and Y450 (2021- ) variants.
  • The coolant change interval under normal use is 200,000 km or 60 months, meaning a full drain and refill of the 10.2-liter system is due every five years regardless of drivetrain configuration.
  • A 200,000 km change interval is characteristic of modern long-life coolant formulations, typically OAT (Organic Acid Technology) or HOAT (Hybrid OAT) types, which are engineered to resist degradation over extended periods compared to conventional coolants.
  • The 2WD and 4WD variants of the e-XDi220 share an identical 10.2-liter cooling system capacity, indicating the drivetrain configuration does not alter the thermal management requirements of the engine itself.
  • Specifications for the Y400 (2017-2021) and the Y450 (2021- ) are identical in capacity, check interval, and change interval, reflecting continuity in the e-XDi220 engine's cooling system design across both body generations.

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