BYD Yuan, S2

Coolant capacity & service interval

BYD Yuan and S2 models require coolant with a capacity range of 3,8 to 5,8 liters. Service intervals include checks at 20000 km or 12 months and changes at 100000 km or 48 months. The data covers 3 configurations.

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

TypeSpecifications
Yuan Plus (2022- )
  • Use: Normal
  • Capacity 3,8-4 liter
  • Check 20000 km/ 12 months
  • Change 100000 km/ 48 months
  • Yuan Pro (2022- )
  • Battery cooling
  • Use: Normal
  • Capacity 5,8 liter
  • Yuan Pro (2022- )
  • Electric motor
  • Use: Normal
  • Capacity 4,3-4,7 liter

Additional Notes

  • The BYD Yuan Plus cooling system holds 3.8-4 liters, a range that typically reflects minor variation between fill points during a standard service versus a full drain-and-refill procedure.
  • Under normal use conditions, the Yuan Plus cooling system carries a check interval of every 20,000 km or 12 months, whichever comes first.
  • The Yuan Plus coolant change interval under normal use is set at 100,000 km or 48 months, placing it in the long-life service category common to modern sealed cooling systems.
  • The Yuan Pro battery cooling system holds 5.8 liters, a notably larger capacity than the 3.8-4 liter figure associated with the Yuan Plus cooling system, reflecting the additional thermal management demands of a high-voltage battery pack.
  • The Yuan Pro carries a separate cooling circuit for the electric motor, with a capacity of 4.3-4.7 liters, meaning the total coolant volume across both circuits on the Yuan Pro exceeds 10 liters when combined.
  • The split between the Yuan Pro battery cooling system and the electric motor cooling system indicates two mechanically distinct circuits, each requiring independent attention during a coolant service.

Other Systems