2019 Acura RDX Engine And Engine Cooling related problems wwwroblemzoo›Acura›RDX›2019Table 1 shows four common engine and engine cooling related problems of the 2019 Acura RDX. The number one most common problem is related to the engine and engine cooling (three problems). The second most common problem is related to the check engine light on (one problem). How to Add Coolant: Acura RDX (2013-2018) 2014 Acura RDX 3 Click to view0:33Adding engine coolant (also known as antifreeze) to your 2014 Acura RDX is pretty easy. Engine coolant circulates through your engine to keep it cool in the summer but won't freeze in the winter. Make sure to check your engine when it is cold for an accurate reading. Acura RDX Replacement Engine Cooling Parts – CARiD wwwd››Auto Repair Parts›Engine Cooling›AcuraKeeping the Acura RDX’s engine running cool is key to avoiding engine overheating. The auto parts that have responsibility for keeping the temperature down are engine cooling parts. These include the water pump , radiator, cooling fans, thermostat, coolant, etc.