MINI Mini, R50/R53 (EU)

Automatic transmission fluid capacity & service interval

MINI Mini, R50/R53 (EU) requires automatic transmission fluid with a capacity range of 4,5 to 6 liters. The data covers 4 configurations.

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

TypeSpecifications
MINI Cooper S (2004-2006)
  • Use: Normal
  • Capacity 6 liter (Dry fill)
  • Capacity 4,5 liter (Service fill)
  • Code: GA6F21AW (Aisin) 6/1
MINI One 1.6 (2004-2006)
  • Use: Normal
  • Capacity 6 liter (Dry fill)
  • Capacity 4,5 liter (Service fill)
  • Code: GA6F21AW (Aisin) 6/1
MINI Cooper S (2001-2004)
  • Use: Normal
  • Capacity 6 liter (Dry fill)
  • Capacity 4,5 liter (Service fill)
  • Code: GA6F21AW (Aisin) 6/1
MINI One 1.6 (2001-2004)
  • Use: Normal
  • Capacity 6 liter (Dry fill)
  • Capacity 4,5 liter (Service fill)
  • Code: GA6F21AW (Aisin) 6/1

Additional Notes

  • The MINI Mini R50/R53 (EU) automatic transaxle carries a dry fill capacity of 6 liters, a figure that applies when the unit is completely empty, such as after a full overhaul or replacement where the torque converter and all internal passages have been drained.
  • A service fill of 4.5 liters is specified for the same transaxle, reflecting the volume needed during a routine fluid change when residual fluid remains in the torque converter and valve body after a standard drain.
  • The 1.5-liter difference between the dry fill and service fill values is a direct consequence of fluid retained in the torque converter during a normal drain procedure, which does not fully evacuate without disassembly.
  • Both the MINI Cooper S and MINI One 1.6 share identical automatic transaxle capacities across the 2001-2006 period, with 6 liters for dry fill and 4.5 liters for service fill in all listed configurations.
  • All four configurations carry a normal use condition designation, meaning the stated service fill capacity of 4.5 liters is associated with standard operating conditions rather than a severe or first-change-only interval.
  • The Cooper S entries are split across two sub-ranges, 2001-2004 and 2004-2006, yet both sub-ranges share the same 6-liter dry and 4.5-liter service fill figures, indicating no capacity revision occurred at the 2004 production boundary.
  • The same split across 2001-2004 and 2004-2006 sub-ranges applies to the MINI One 1.6, and again the capacity values remain unchanged between the two periods at 6 liters dry and 4.5 liters service fill.

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