17 22 010 Removing And Installing/Replacing Transmission Oil Cooler For Automatic Transmission (N63, B40/44 0/1)

Necessary preliminary tasks: 

• Drain coolant  . See 17 00 005 DRAINING AND ADDING COOLANT (N63)  or 17 00 005 DRAIN AND TOP UP COOLANT (N63 B40/B44 O 1) .
• Remove fan cowl  . See 17 11 035 REMOVING AND INSTALLING/RENEWING FAN COWL WITH ELECTRIC FAN (N63) , 17 11 035 REMOVING AND INSTALLING/REPLACING THE FAN COWL WITH ELECTRIC FAN (N63 B40/B44 O 1)  or 17 11 035 REMOVING AND INSTALLING/REPLACING THE FAN COWL WITH ELECTRIC FAN (N63 B40/B44 O 1) .

Recycling 

Catch and dispose of drained coolant in a suitable container.

Transmission oil emerges when engine oil 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 coolant hose (1) and detach from gearbox oil cooler.

Unlock transmission fluid lines (2) and detach from gearbox oil cooler.

Fig 1: Coolant Hose And Transmission Fluid Lines

Courtesy of BMW OF NORTH AMERICA, INC.

Pull transmission oil cooler (1) up and out of module carrier (2).

Unthread and remove transmission oil cooler.

Fig 2: Transmission Oil Cooler And Module Carrier

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

Only when replacing transmission oil cooler, remount engine oil pipe (1).

Release screw (2).

Remove clamp.

Release screw (3).

Tightening torque: 17 22 9AZ .

Detach oil pipe (1).

Replace sealing ring.

Fig 3: Engine Oil Pipe And Screw

Courtesy of BMW OF NORTH AMERICA, INC.