2017 BMW i8 Submodel: Base; Engine: 1.5L L3; Electronics Cooling;. 2014 BMW i8 Submodel: Base; Engine: 1.5L L3; Engine Cooling;. 2015 BMW i8 Submodel: Base; Engine: 1.5L L3; Engine Cooling;. 2016 BMW i8 Submodel: Base; Engine: 1.5L L3; Engine Cooling; Location-Reservoir;.