BMW 2 series, G42 / G87 (USA)

Differential fluid capacity & service interval

BMW 2 series, G42 / G87 (USA) differential fluid capacity ranges from 0,45 liter to 1 liter. Service intervals include normal use and flexible use via the on board maintenance system. The data covers 9 configurations.

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

TypeSpecifications
  • M2 (2023- )
  • Rear
  • Use: Flexible (on board maintenance system)
  • Capacity 1 liter
  • Code: 225M SA2T4
  • 230i xDrive (2022- )
  • Front
  • Use: Normal
  • Capacity 0,45 liter
  • Code: 168AL
  • 230i xDrive (2022- )
  • Rear
  • Use: Normal
  • Capacity 0,8 liter
  • Code: 190AL
  • 230i xDrive (2022- )
  • Rear
  • Use: Normal
  • Capacity 1 liter
  • Code: 215 LWS SA2T4
  • M240i (2022- )
  • Rear
  • Use: Normal
  • Capacity 1 liter
  • Code: 215 LWS SA2T4
  • 230i (2021- )
  • Rear
  • Use: Normal
  • Capacity 0,8 liter
  • Code: 190AL
  • 230i (2021- )
  • Rear
  • Use: Normal
  • Capacity 1 liter
  • Code: HAG 215LWS
  • M240i xDrive (2021- )
  • Front
  • Use: Normal
  • Capacity 0,45 liter
  • Code: 168AL
  • M240i xDrive (2021- )
  • Rear
  • Use: Normal
  • Capacity 1 liter
  • Code: 215 LWS SA2T4

Additional Notes

  • The BMW 2 Series (G42/G87) rear differential carries either 0.8 liter or 1 liter of fluid depending on the specific unit installed, and both capacities are listed for the 230i under normal use conditions.
  • The dual rear differential capacity entries for the 230i xDrive follow the same pattern, with 0.8 liter and 1 liter both specified under normal use, indicating two different rear differential assemblies are possible in that configuration.
  • The front differential on the 230i xDrive, introduced from 2022, holds 0.45 liter under normal use conditions, a notably smaller volume than the rear differential in the same drivetrain.
  • The M240i xDrive shares the same front differential capacity of 0.45 liter as the 230i xDrive, and the same 1 liter rear differential capacity, despite being a different trim level.
  • The rear-wheel-drive M240i, available from 2022, carries a 1 liter rear differential capacity under normal use, identical to the rear differential fill in the xDrive variant of the same model.
  • The M2, introduced from 2023, specifies a 1 liter rear differential capacity, but unlike all other configurations in the lineup, service intervals are governed by the on-board maintenance system rather than a fixed normal-use schedule.

Other Systems