BMW 4 series Convertible, G23 / G83 (EU)

Transfer case fluid capacity & service interval

BMW 4 series Convertible, G23 / G83 (EU) requires transfer case fluid with a capacity of 0,7 liter. The data covers 1 configuration.

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

TypeSpecifications
M440d Mild-Hybrid xDrive Convertible (250 kW) (2021- )
  • Use: Normal
  • Capacity 0,7 liter
  • Code: ATC 13

Additional Notes

  • The BMW 4 Series Convertible M440d Mild-Hybrid xDrive (250 kW) carries a transfer case fluid capacity of 0.7 liter, which is a relatively small volume consistent with the compact transfer box units found in modern xDrive all-wheel-drive systems.
  • A capacity of 0.7 liter applies specifically to a normal use condition, meaning the interval and fill quantity are based on standard operating environments rather than severe or demanding duty cycles.
  • The 0.7 liter figure represents a service fill quantity for the transfer box, reflecting the amount of fluid required during a routine fluid change rather than a full overhaul or dry-fill scenario.

Other Systems