Draining the oil cooler
WARNING: This page is about a different car, the 2004 Volvo S40, 2003 Volvo S40, 2002 Volvo S40, 2001 Volvo S40, and 2000 Volvo S40. However, it is still accessible from the selected car via links, so may be relevant.
Place a container beneath the transmission to catch the oil.
Remove the hose clamp and disconnect the return hose from the pipe running to the control system cover.
Install a plastic plug in the pipe.
Install a transparent plastic hose on the oil return line.
Ensure that the hose flows into the container.