2.0 LITER PLUG-IN HYBRID. Return hose. RIGHT. Flexible Hose that is part of the engine cooling system. From 11/18/2019. HVAC Heater Hose. PTC Heater. To 11/18/2019. and Amplifier; tube Assembly. By - Passenger. Connector. Cooling pipe. Elbow. HVAC Heater. Intake pipe. Radiator Coolant. Return. Water inlet. Water Outlet. Water retrn tube.