BYD Yuan, S1

Coolant capacity & service interval

BYD Yuan and S1 models utilize coolant with capacities ranging from 4,3 to 8,5 liters. Service intervals include checks at 7500 to 10000 km or 6 to 12 months, and fluid changes at 20000 to 100000 km or 12 to 48 months. The data covers 6 configurations.

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

TypeSpecifications
  • Yuan EV (2020-2022)
  • Battery cooling
  • Use: Normal
  • Capacity 4,5 liter
  • Change 40000 km/ 48 months
  • Yuan EV (2020-2022)
  • Electric motor
  • Use: Normal
  • Capacity 4,3-4,7 liter
  • Capacity 7,4-8,2 liter (BYD7003BEV3)
  • Change 40000 km/ 48 months
  • Yuan EV360 (2020-2022)
  • Battery cooling
  • Use: Normal
  • Capacity 5,1 liter
  • Change 100000 km/ 48 months
  • Yuan EV360 (2020-2022)
  • Electric motor
  • Use: Normal
  • Capacity 7,8 liter
  • Change 100000 km/ 48 months
Yuan 1.5 (2016-2019)
  • Use: Normal
  • Capacity 6-7 liter
  • Check 10000 km/ 6 months
  • Change 20000 km/ 12 months
Yuan 1.5T (2016-2019)
  • Use: Normal
  • Capacity 8,5 liter
  • Check 7500 km/ 12 months
  • Change 40000 km/ 24 months

Additional Notes

  • The BYD Yuan 1.5T (2016-2019) cooling system holds 8.5 liters, noticeably more than the 6-7 liter capacity of the naturally aspirated 1.5 variant covering the same model years, reflecting the greater thermal load a turbocharged engine places on the cooling circuit.
  • The Yuan 1.5 (2016-2019) cooling system carries a check interval of 10,000 km or 6 months under normal use conditions, which is more frequent than the 7,500 km or 12-month check schedule specified for the 1.5T variant.
  • The Yuan 1.5 (2016-2019) coolant change interval is set at 20,000 km or 12 months under normal use, half the 40,000 km or 24-month change interval assigned to the 1.5T cooling system.
  • The Yuan EV (2020-2022) battery cooling system holds 4.5 liters, a dedicated circuit separate from the electric motor cooling system, which carries a capacity of 4.3-4.7 liters in standard configuration.
  • The BYD Yuan EV (2020-2022) variant identified as BYD7003BEV3 specifies a significantly larger electric motor cooling system capacity of 7.4-8.2 liters, compared to the 4.3-4.7 liter range listed for other Yuan EV configurations of the same years.
  • Both the battery cooling system and the electric motor cooling system on the Yuan EV (2020-2022) share a change interval of 40,000 km or 48 months under normal use conditions.
  • The Yuan EV360 (2020-2022) battery cooling system holds 5.1 liters, slightly more than the 4.5-liter battery cooling capacity of the standard Yuan EV from the same period.
  • The Yuan EV360 (2020-2022) electric motor cooling system capacity is 7.8 liters, and both cooling circuits on the EV360 are assigned a change interval of 100,000 km or 48 months under normal use, a considerably longer distance interval than the 40,000 km specified for the standard Yuan EV cooling systems.

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