2017 BMW i3 Engine Cooling;. 2017 BMW i3 HVAC System;. 2017 BMW i3 Engine: 0.6L L2; Electric Motor Cooling;. 2017 BMW i3 Engine: 0.6L L2; Engine Cooling;. 2017 BMW i3 Engine: 0.6L L2; HVAC System;. 2016 BMW i3 Submodel: Base; Location: Reservoir; Engine Cooling or HVAC System;.