17 21 020 Removing and installing/replacing transmission oil cooler (DKG) (N54, N54T)

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

Necessary preliminary tasks:

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.

Release and disconnect coolant hoses (1).

Unlock transmission oil lines (2) and detach.

Release screw (3).

Tightening torque 17 10 6AZ .

Remove transmission oil cooler (4).

Fig 1: Identifying Transmission Oil Cooler, Coolant Hoses, Transmission Oil Lines And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Assemble engine.
Check OIL LEVEL in twin-clutch gearbox. Top up gearbox oil if necessary.