BYD Song, S1

Automatic transmission fluid capacity & service interval

BYD Song and S1 automatic transmission fluid capacity ranges from 4,3 to 7,2 liters. Service intervals occur every 60000 km or 36 months. The data covers 2 configurations.

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

TypeSpecifications
Song 1.5T (2015-2019)
  • Use: Normal
  • Capacity 4,3 liter
  • Change 60000 km/ 36 months
  • Code: AF640 6/1
  • Song 1.5T (2015-2019)
  • DCT
  • Use: Normal
  • Capacity 7,2 liter
  • Code: 6DT35 6/1

Additional Notes

  • The BYD Song 1.5T carries two distinct automatic transmission configurations, each with a separate fluid capacity figure.
  • The conventional automatic transaxle holds 4.3 liters, a capacity typical of a service fill rather than a full overhaul, which would normally require a higher volume to account for fluid retained in the torque converter and valve body.
  • The semi-automatic DCT transaxle holds 7.2 liters, a notably larger figure that reflects the dual-clutch unit's additional fluid circuits and wet-clutch lubrication requirements compared to the conventional automatic.
  • For the conventional automatic transaxle on the Song 1.5T (2015-2019), a fluid change interval of 60,000 km or 36 months applies under normal use conditions.
  • The 36-month time limit on the conventional automatic transaxle service interval means a fluid change is due at whichever threshold arrives first, whether the distance or the calendar period.
  • No change interval is listed for the DCT transaxle, so the only specification on record for that configuration is the 7.2-liter fluid capacity under normal use conditions.

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