BYD Song Pro, S2

Automatic transmission fluid capacity & service interval

BYD Song Pro and S2 models utilize automatic transmission fluid with capacities ranging from 5,2 to 7,2 liters. Service intervals occur every 60000 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
  • Song Pro (118 kW) (2019-2022)
  • DCT
  • Use: Normal
  • Capacity 7,2 liter
  • Change 60000 km/ 48 months
  • Code: 7DT28 7/1
  • Song Pro (136 kW) (2019-2022)
  • DCT
  • Use: Normal
  • Capacity 7,2 liter
  • Change 60000 km/ 48 months
  • Code: 7DT28 7/1
  • Song Pro DM (2019-2022)
  • DCT
  • Use: Normal
  • Capacity 5,2 liter
  • Change 60000 km/ 48 months
  • Code: 6DT35 6/1

Additional Notes

  • The BYD Song Pro 118 kW and 136 kW variants share an identical transaxle fluid capacity of 7.2 liters, indicating a consistent semi-automatic DCT unit across both power outputs for the 2019-2022 period.
  • A 7.2-liter capacity is relatively substantial for a DCT transaxle service fill, reflecting the integrated nature of the unit where the transmission fluid serves both the clutch packs and gear sets within a single housing.
  • The Song Pro DM carries a noticeably lower transaxle capacity of 5.2 liters compared to the 7.2 liters specified for the non-DM variants, a difference of 2.0 liters that points to a physically distinct DCT assembly in the dual-mode hybrid configuration.
  • All three Song Pro configurations share the same service interval of 60,000 km or 48 months under normal use conditions, meaning the change schedule is uniform regardless of the capacity difference between the DM and non-DM variants.
  • The 48-month time limit on the fluid change interval runs independently of mileage accumulation, so a vehicle covering low annual distances would still reach the service threshold at the four-year mark under normal use conditions.
  • All rows are classified under normal use conditions, which in fluid service contexts typically refers to standard on-road driving without the additional thermal or mechanical stress associated with severe-duty classifications such as towing, frequent short trips, or extreme temperatures.

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