Removing the coolant hose from the heater unit
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.
NOTE:
The hose is too short to be left in place when lowering the engine.
Turn the quick-release connector slightly in the direction of the arrow. At the same time, pull the hose towards you.
Collect the coolant that flows out.