17 22 010 Removing and installing/replacing transmission oil cooler for automatic transmission (N47 D16/20 K/U/O/T 1)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2016 BMW 328i xDrive, 2016 BMW 328d xDrive, 2015 BMW 328i xDrive, 2015 BMW 328d xDrive, and 2014 BMW 328i xDrive. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Risk of scalding!
Only perform this repair work after engine has cooled down.

Necessary preliminary tasks:

Remove ACOUSTIC COVER
Remove electronics box . See 12 14 550 REPLACING ELECTRONICS BOX (N47 D16/20 K/U/O/T 1) or 12 14 550 REPLACING CONTROL UNIT BOX (N47 D20 O 1 WITH SCR) .
Drain COOLANT .

Recycling

Catch and dispose of drained coolant in a suitable container.

Transmission oil emerges when fluid lines are detached from transmission oil cooler.

Catch and dispose of escaping transmission oil in a suitable container.

Observe country-specific waste disposal regulations.

Unlock and detach coolant hose (1).

Fig 1: Identifying Coolant Hose

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: The transmission oil cooler is located in the oil filter housing.

Fig 2: Identifying Transmission Oil Cooler, Bolts And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Tightening torque 17 22 2AZ .

Pull transmission oil lines off of transmission oil cooler and close with suitable plugs.

Installation note:

Replace sealing rings.

Release bolts along line (3).

Remove transmission oil cooler (4).

Installation note:

Replace gaskets (1) on thermostat housing.

Fig 3: Identifying Thermostat Housing Gaskets

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Assemble engine.
Check OIL LEVEL in automatic transmission. If necessary, top up automatic transmission fluid.