BMW 4 series Coupé, G22 / G82 (EU)

Transfer case fluid capacity & service interval

BMW 4 series Coupé, G22 / G82 (EU) requires 0,7 liter of transfer case fluid. Service intervals include normal use. The data covers 2 configurations.

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

TypeSpecifications
420i xDrive Coupé PF (135 kW) (2021-2024)
  • Use: Normal
  • Capacity 0,7 liter
  • Code: ATC 13
M440d Mild-Hybrid xDrive (250 kW) (2021- )
  • Use: Normal
  • Capacity 0,7 liter
  • Code: ATC 13

Additional Notes

  • Both the 420i xDrive Coupé PF (135 kW) and the M440d Mild-Hybrid xDrive (250 kW) share an identical transfer case fluid capacity of 0.7 liter, applying to normal use conditions.
  • A transfer case capacity of 0.7 liter is a relatively modest fill volume, consistent with compact transfer box units found in passenger car-based all-wheel drive systems rather than larger truck-derived units.
  • The 0.7 liter figure represents a service fill capacity under normal use, meaning the quantity of fluid associated with routine maintenance rather than a full overhaul or dry-fill scenario.
  • The BMW 4 Series Coupé G22 / G82 420i xDrive Coupé PF (135 kW) carries the same transfer case fluid capacity across the full 2021-2024 model year span covered by the specifications.

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