Draining the gearbox fluid
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2006 Volvo S80, 2005 Volvo S80, 2004 Volvo S80, 2003 Volvo S80, and 2002 Volvo S80. However, it is still accessible from the selected car via links, so may be relevant.
Place a container underneath the gearbox.
Drain the oil. Measure and note the volume of oil. Then tighten the plug. Tighten to 40 Nm .
Remove the cable harness clamp on the control system cover. Disconnect the ground lead from the gearbox. Tie up the cable harness and ground lead.
Disconnect the oil cooler return line from the control system cover.
Disconnect the oil cooler pipe and hose from the gearbox. Move the pipe to one side.
Seal the hole in the gearbox with a plastic plug.