2015 BMW 750i Submodel: Base; Engine: 4.4L V8; ATF Cooling; Cooler to Pipe;. 2009 BMW 750i Engine: 4.4L V8; Radiator To Oil Cooler;. 2010 BMW 750i Engine: 4.4L V8; Radiator To Oil Cooler;. 2011 BMW 750i Submodel: ActiveHybrid; Engine: 4.4L V8; Engine Cooling; Radiator To Oil Cooler;.