Gearbox leakage

WARNING: This page does not describe the selected car, but rather 45 other vehicles, including the 2016 BMW M5, 2016 BMW 550i xDrive, 2016 BMW 550i, 2016 BMW 535i xDrive, and 2016 BMW 535i. However, it is still accessible from the selected car via links, so may be relevant.

Noticeable symptoms:

The automatic transmission is leaking around the continuous oil sump gasket.

NOTE: Analyses have shown that in only the rarest of cases is the cause of this fault pattern the oil sump gasket or plastic oil sump. The following graphics show the areas that could be leaking, marked by arrows.

Oil sump gasket

Fig 1: Locating Oil Sump Gasket
Courtesy of BMW OF NORTH AMERICA, INC.
Output flange

Fig 2: Locating Output Flange
Courtesy of BMW OF NORTH AMERICA, INC.
Connector housing

Fig 3: Locating Connector Housing
Courtesy of BMW OF NORTH AMERICA, INC.
Gearshift shaft

Fig 4: Locating Gearshift Shaft
Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Further possibilities of the leakage for the all-wheel drive vehicle on the transfer box, mounting of the transmission output shaft of the automatic transmission.
Transfer box radial shaft seal

Fig 5: Locating Transfer Box Radial Shaft Seal
Courtesy of BMW OF NORTH AMERICA, INC.
Converter housing, oil supply screw connection

Fig 6: Locating Converter Housing And Oil Supply Screw Connection
Courtesy of BMW OF NORTH AMERICA, INC.
Converter housing, below the oil supply screw connection

Fig 7: Locating Converter Housing And Oil Supply Screw Connection (Below)
Courtesy of BMW OF NORTH AMERICA, INC.