17 22 010 Removing and installing/replacing transmission oil cooler for automatic transmission (N47 D20 O 1, N57 D30 O 1)

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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.

Unlock and detach coolant hose (1).

Fig 1: Identifying Coolant Hose

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: The transmission oil cooler is located in the oil filter housing.

Release screw (1).

Pull transmission oil lines off of transmission oil cooler and close with suitable plugs.

Unlock and detach coolant hose (2).

Installation note:

Replace sealing rings.

Fig 2: Identifying Coolant Hose & Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Release bolts along line (3).

Remove transmission oil cooler (4).

Installation note:

Replace gaskets (1) on thermostat housing.

Fig 3: Identifying Transmission Oil Cooler And Gaskets

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Assemble engine.
Check OIL LEVEL in automatic transmission. If necessary, top up automatic transmission oil.