BMW 5 series, G30 / G31 / F90 (EU)

Differential fluid capacity & service interval

BMW 5 series, G30 / G31 / F90 (EU) models utilize differential fluid with capacities ranging from 0,3 to 5,25 liters. The data covers 2 configurations.

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

TypeSpecifications
  • Alpina B5 xDrive PF (2021-2023)
  • Rear
  • Use: Normal
  • Capacity 1,2 liter
  • Code: 235LK
  • 520i (120 kW) (2017-2018)
  • Rear
  • Use: Normal
  • Capacity 5,25 liter (Service fill)
  • Filter capacity 0,3 liter

Additional Notes

  • The BMW 5 Series G30/G31 520i (120 kW) rear differential carries a service fill capacity of 5.25 liters, which reflects the amount of fluid used during a routine drain-and-fill service rather than a complete overhaul of the unit.
  • An additional filter capacity of 0.3 liters is specified for the 520i (120 kW) rear differential, meaning the total fluid volume involved in a service that includes filter replacement exceeds the base service fill figure.
  • The 520i (120 kW) rear differential specifications apply under normal use conditions, meaning the interval and capacity figures are not adjusted for demanding driving environments such as towing or track use.
  • The Alpina B5 xDrive PF (2021-2023) rear differential carries a notably smaller capacity of 1.2 liters, compared to the 5.25-liter service fill of the 520i (120 kW), indicating a fundamentally different differential unit between the two configurations.
  • No filter capacity is listed alongside the 1.2-liter figure for the Alpina B5 xDrive PF rear differential, in contrast to the 520i (120 kW) entry, which separates fluid and filter volumes explicitly.

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