17 22 010 Removing and installing/replacing transmission oil cooler for automatic transmission (N63, B40/44 0/1)

WARNING: This page is about a different car, the 2013 BMW 550i GT, 2012 BMW 550i GT, 2011 BMW 550i GT, and 2010 BMW 550i GT. 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.

Unlock coolant hose (1) and detach from gearbox oil cooler.

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

Fig 1: Identifying Transmission Fluid Lines And Coolant Hose

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

Unthread and remove transmission oil cooler.

Fig 2: Identifying Transmission Oil Cooler And Module Carrier

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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: Identifying Engine Oil Pipe And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Assemble engine.

Check OIL LEVEL in automatic transmission. If necessary, top up automatic transmission oil.