17 22 010 Removing and installing/replacing transmission oil cooler for automatic transmission (N63, N63O1)

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

Necessary preliminary tasks:

Drain coolant. See DRAINING/ADDING COOLANT (N63) or DRAIN/TOP-UP COOLANT (N63O1) .
Remove fan cowl. See REMOVING FAN COWL WITH ELECTRIC FAN (N63) or REMOVING FAN COWL WITH ELECTRIC FAN (N63O1) .

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 Coolant Hoses 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: Identifying 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: Identifying Engine Oil Pipe And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Assemble engine.

Check OIL LEVEL in automatic transmission.

If necessary, top up automatic transmission oil.