BYD M6

Coolant capacity & service interval

BYD M6 coolant capacity ranges from 6,4 to 8,7 liters. Service intervals include checks every 10000 km or 6 months and changes every 40000 km or 24 months. The data covers 2 configurations.

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

TypeSpecifications
M6 2.0, QCJ6480M (2010-2017)
  • Use: Normal
  • Capacity 6,4-7,9 liter
  • Check 10000 km/ 6 months
  • Change 40000 km/ 24 months
M6 2.4, QCJ6480MJ (2010-2017)
  • Use: Normal
  • Capacity 7,3-8,7 liter
  • Check 10000 km/ 6 months
  • Change 40000 km/ 24 months

Additional Notes

  • The BYD M6 2.0 (QCJ6480M) cooling system carries a capacity range of 6.4 to 7.9 liters, while the 2.4 (QCJ6480MJ) holds 7.3 to 8.7 liters, reflecting the larger displacement engine's greater thermal mass and expanded cooling circuit volume.
  • Both engine variants share a capacity expressed as a range rather than a fixed value, which is typical of cooling systems where the actual fill depends on whether air pockets are fully purged during the refill procedure.
  • The check interval for both the 2.0 and 2.4 cooling systems is set at 10,000 km or 6 months under normal use conditions, whichever comes first.
  • The coolant change interval for both variants is 40,000 km or 24 months under normal use conditions, meaning the fluid is expected to remain within service specification for up to two years between full replacements.
  • The 2.4-liter variant's upper capacity of 8.7 liters is notably higher than the 2.0-liter's upper limit of 7.9 liters, a difference of 0.8 liters that becomes relevant when calculating the volume of coolant concentrate needed to achieve a correct mixture ratio during a full system drain and refill.

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