Citroën Grand C4 Picasso, B78

Automatic transmission fluid capacity & service interval

Citroën Grand C4 Picasso, B78 uses automatic transmission fluid with capacities ranging from 2,1 to 7 liters. Service intervals are for normal use. The data covers 6 configurations.

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

TypeSpecifications
Grand C4 Picasso 1.6 BlueHDi 120, BHZ (2014-2018)
  • Use: Normal
  • Capacity 7 liter (Dry fill)
  • Capacity 3-4 liter (Service fill)
  • Code: AT6 III 6/1
Grand C4 Picasso 1.6 THP 165, 5GY (2014-2018)
  • Use: Normal
  • Capacity 7 liter (Dry fill)
  • Capacity 3-4 liter (Service fill)
  • Code: AT6 III 6/1
Grand C4 Picasso 1.6 e-HDi 115, 9HC (2013-2015)
  • Use: Normal
  • Capacity 2,2 liter (Dry fill)
  • Capacity 2,1 liter (Service fill)
  • Code: MCP 6/1
Grand C4 Picasso 1.6 e-HDi 90, 9HP (2013-2014)
  • Use: Normal
  • Capacity 2,2 liter (Dry fill)
  • Capacity 2,1 liter (Service fill)
  • Code: MCP 6/1
Grand C4 Picasso 2.0 BlueHDi 150, AHX (2013-2018)
  • Use: Normal
  • Capacity 7 liter (Dry fill)
  • Capacity 3 liter (Service fill)
  • Code: AT6 6/1
Grand C4 Picasso 2.0 BlueHDi 150, AHX (2013-2018)
  • Use: Normal
  • Capacity 2,2 liter (Dry fill)
  • Capacity 2,1 liter (Service fill)
  • Code: MCP 6/1

Additional Notes

  • The Citroën Grand C4 Picasso B78 automatic transaxle configurations carry a dry fill capacity of 7 liters, which reflects the total fluid volume required when filling a completely drained or rebuilt unit from scratch.
  • Service fill capacity on the automatic transaxle variants ranges from 3 to 4 liters depending on the engine, representing only the partial volume exchanged during a routine fluid change rather than a full system drain.
  • The 1.6 BlueHDi 120 (BHZ) and 1.6 THP 165 (5GY) share identical automatic transaxle capacities of 7 liters dry fill and 3-4 liters service fill under normal use conditions, covering the 2014-2018 model years.
  • The 2.0 BlueHDi 150 (AHX) with an automatic transaxle has a service fill of 3 liters, which is at the lower end compared to the 3-4 liter range specified for the 1.6 BlueHDi 120 and 1.6 THP 165 automatic variants.
  • The semi-automatic transaxle configurations across the Grand C4 Picasso B78 range operate with a significantly smaller fluid volume, carrying a dry fill of 2.2 liters versus the 7 liters required by the automatic transaxle units.
  • Semi-automatic transaxle service fill capacity is 2.1 liters, leaving only a 0.1-liter difference from the 2.2-liter dry fill, which indicates that a routine service exchange displaces nearly the entire fluid volume of the unit.
  • The 2.0 BlueHDi 150 (AHX) is the only engine in the lineup specified with both an automatic and a semi-automatic transaxle option, with each transmission type carrying entirely different fluid capacities under the same normal use condition.
  • The 1.6 e-HDi 115 (9HC) and 1.6 e-HDi 90 (9HP) are both paired exclusively with the semi-automatic transaxle and share the same 2.2-liter dry fill and 2.1-liter service fill specifications under normal use conditions.
  • All six configurations listed are specified under normal use conditions, meaning none of the capacity figures are associated with a severe-duty or first-change-only service scenario.

Other Systems