Removing the coolant hose from the passenger compartment heater

Fig 1: Identifying Passenger Compartment Coolant Hose & Clips

Courtesy of VOLVO CARS OF NORTH AMERICA.

Clamp the hoses with hose clips.

Place some paper under the inner hose connection to collect any spilled coolant.

Turn the quick-release connector (the inner of the 2 hoses) slightly in the direction of the arrow so that the lock opens.

At the same time, pull the coolant hose straight out of the coolant pipe.