BMW 8 series Coupé, G15 / F92 (EU)

Transfer case fluid capacity & service interval

BMW 8 series Coupé, G15 / F92 (EU) requires Transfer case fluid with a capacity of 0,7 liter. The data covers 6 configurations.

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

Type	Specifications
840d Mild-Hybrid xDrive Coupé DPF (250 kW) (2020- )	Use: Normal Capacity 0,7 liter Code: ATC 13
840d xDrive Coupé DPF (235 kW) (2019-2020)	Use: Normal Capacity 0,7 liter Code: ATC 13
840i xDrive Coupé PF (250 kW) (2019-2020)	Use: Normal Capacity 0,7 liter Code: ATC 13
M850i xDrive Coupé PF (2019- )	Use: Normal Capacity 0,7 liter Code: ATC 13
840d xDrive Coupé DPF (235 kW) (2018-2019)	Use: Normal Capacity 0,7 liter Code: ATC 13
M850i xDrive Coupé PF (2018-2019)	Use: Normal Capacity 0,7 liter Code: ATC 13

Across all listed configurations of the BMW 8 Series Coupé G15/F92, the transfer case fluid capacity is uniformly specified at 0.7 liter under normal use conditions.
A 0.7 liter figure is characteristic of a service fill capacity, representing the amount of fluid required during a routine drain-and-refill procedure rather than a full overhaul or dry-fill quantity.
The specifications cover both diesel and petrol variants, including the 840d xDrive (235 kW), the 840d Mild-Hybrid xDrive (250 kW), the 840i xDrive (250 kW), and the M850i xDrive, all sharing the same 0.7 liter transfer case capacity.
The 840d xDrive Coupé DPF at 235 kW appears across two distinct year ranges, 2018-2019 and 2019-2020, each listed as a separate configuration yet both carrying the same 0.7 liter transfer case specification.
The normal use condition applied to all rows refers to standard operating environments, as opposed to severe duty cycles such as frequent towing, off-road use, or extreme temperature exposure, which would typically warrant shorter service intervals.
The M850i xDrive Coupé is represented by two separate entries covering 2018-2019 and from 2019 onward, with no variation in the 0.7 liter transfer case capacity between the two production periods.
The 840d Mild-Hybrid xDrive Coupé DPF, despite incorporating a mild-hybrid drivetrain, retains the same 0.7 liter transfer case fluid capacity as the conventional non-hybrid xDrive variants in the same lineup.