BMW 2 series, G42 / G87 (EU)

Differential fluid capacity & service interval

BMW 2 series, G42 / G87 (EU) differential fluid capacity ranges from 0,45 liter to 1 liter. Service intervals include normal and flexible on board maintenance system. The data covers 8 configurations.

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

TypeSpecifications
  • M2 (353 kW) PF (2024- )
  • Rear
  • Use: Flexible (on board maintenance system)
  • Capacity 1 liter
  • Code: 225M SA2T4
  • M2 (338 kW) PF (2023-2024)
  • Rear
  • Use: Flexible (on board maintenance system)
  • Capacity 1 liter
  • Code: 225M SA2T4
  • 218i PF (2022- )
  • Rear
  • Use: Normal
  • Capacity 0,8 liter
  • Code: 190AL
  • 230i PF (2022- )
  • Rear
  • Use: Normal
  • Capacity 0,8 liter
  • Code: 190AL
  • 230i PF (2022- )
  • Rear
  • Use: Normal
  • Capacity 1 liter
  • Code: 215 LWS SA2T4
  • M240i PF (2022- )
  • Rear
  • Use: Normal
  • Capacity 1 liter
  • Code: 215 LWS SA2T4
  • M240i xDrive PF (2021- )
  • Front
  • Use: Normal
  • Capacity 0,45 liter
  • Code: 168AL
  • M240i xDrive PF (2021- )
  • Rear
  • Use: Normal
  • Capacity 1 liter
  • Code: 215 LWS SA2T4

Additional Notes

  • The BMW 2 Series G42/G87 rear differential capacity splits into two values across the lineup: 0.8 liter for the 218i and one configuration of the 230i, and 1 liter for the M240i, M2 variants, and a second 230i configuration. The lower 0.8-liter figure reflects a smaller rear differential unit, while the 1-liter figure is associated with differentials found in higher-torque applications.
  • The 230i PF carries two separate rear differential capacity entries, both listed under normal use conditions — one at 0.8 liter and one at 1 liter. This indicates that the 230i was fitted with two different rear differential units depending on the specific build or market configuration.
  • The M240i xDrive PF is the only all-wheel-drive variant in the listed specifications, and as a result carries two differential entries: a front differential at 0.45 liter and a rear differential at 1 liter. The front differential's notably smaller capacity of 0.45 liter reflects the compact nature of the front axle differential in a primarily rear-biased xDrive layout.
  • The M2 in both its 338 kW (2023-2024) and 353 kW (2024- ) outputs uses a flexible service interval governed by the on-board maintenance system, rather than a fixed normal-use schedule. This system adjusts service intervals based on actual driving conditions and load, which is typical for high-performance variants subjected to variable operating stress.
  • All non-M2 variants in the specifications — the 218i, 230i, M240i, and M240i xDrive — follow a normal use condition for differential fluid service. Normal use intervals are based on standard mileage or time thresholds rather than adaptive monitoring.
  • The rear differential capacity is identical at 1 liter for the M2 338 kW, M2 353 kW, M240i, and M240i xDrive, despite differences in drivetrain layout and power output. This shared capacity points to a common rear differential housing used across multiple G42/G87 configurations.

Other Systems