17 22 010 Removing and installing/replacing transmission oil cooler for automatic transmission (N63, N74)

WARNING: This page is about a different car, the 2011 BMW 750xi, 2011 BMW 750Lxi, 2010 BMW 750xi, and 2010 BMW 750Lxi. 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:

Drain COOLANT .
Remove FAN COWL .

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.

Release and disconnect coolant hoses (1).

Unlock transmission oil lines (2) and detach.

Remove transmission oil cooler (3).

NOTE: Only when replacing transmission oil cooler (3), remount THERMOSTAT INSERTS (4).

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

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Assemble engine.

Check the oil level in the automatic transmission. If necessary, top up automatic transmission oil. See CHECKING/TOPPING UP TRANSMISSION OIL (GA6HP26Z/GA6HP32Z) or CHECKING/TOPPING UP TRANSMISSION OIL (GA8HP45Z, GA8HP70Z, GA8HP90Z) .