Citroën C4 III, C41

Additional Notes

• All three listed configurations of the Citroën C4 III share an identical dry fill capacity of 6 liters, which represents the total fluid volume required when filling a completely empty transmission, such as during a full unit replacement or overhaul.
• The service fill capacity across all three configurations is specified as a range of 2.5 to 3.5 liters, reflecting the variable amount of fluid retained in the torque converter and valve body after a drain, meaning the exact refill quantity depends on how thoroughly the unit was evacuated.
• The gap between the 6-liter dry fill and the 2.5-3.5 liter service fill range indicates that a standard fluid change recovers less than half the total transmission volume, which is a common characteristic of automatic transaxles without a drain plug accessible to the torque converter.
• The 1.2 PureTech 130 with engine code HNS and the 1.2 PureTech 155 with engine code HNJ are both petrol engines paired with the same automatic transaxle fluid specifications, despite differing in power output.
• The 1.5 BlueHDi 130 with engine code YHZ is a diesel configuration that shares the same 6-liter dry fill and 2.5-3.5 liter service fill figures as the two petrol variants, indicating a common automatic transaxle unit across the petrol and diesel drivetrains in the C4 III lineup.
• All three rows are designated under normal use conditions, meaning the stated service fill range of 2.5 to 3.5 liters applies specifically to standard operating environments rather than severe duty cycles.