BMW 6 series, E63 / E64 (USA)

Manual transmission fluid capacity & service interval

BMW 6 series, E63 / E64 (USA) manual transmission fluid has a capacity range of 1,5 to 1,6 liters. The data covers 2 configurations.

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

Type	Specifications
650i (2005-2011) With MTF-LT3 label	Use: Normal Capacity 1,6 liter (Initial fill) Capacity 1,5 liter (Service fill) Code: ZF GS6-53BZ/DZ 6/1
645Ci (2003-2005) With MTF-LT3 label	Use: Normal Capacity 1,6 liter (Initial fill) Capacity 1,5 liter (Service fill) Code: ZF GS6-53BZ/DZ 6/1

Both the 645Ci (2003-2005) and 650i (2005-2011) share identical manual transmission fluid capacities, with an initial fill of 1.6 liters and a service fill of 1.5 liters.
The 0.1-liter difference between the initial fill and service fill reflects the small amount of fluid that remains in the transmission after a drain, meaning a complete overhaul or dry build requires the full 1.6 liters.
All rows carry a note specifying the transmission must bear the MTF-LT3 label, indicating a fluid type requirement tied directly to the unit rather than a general specification.
The BMW 6 Series E63/E64 manual transmission fluid specifications apply under normal use conditions, with no separate severe-use interval listed for either configuration.