There are two places to add coolant and I really don't know how they relate to each other. One is in the front of the engine that has a MAX indication and that has to do with cooling the turbochargers. The larger one is on the right (looking from the front of car into the engine compartment) rear part of the engine compartment. See the attached image to determine if it is full. There are no markings. (My experience is with my car a 2013 650.)
