One problem related to radiator has been reported for the 2015 Volkswagen Passat. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2015 Volkswagen Passat based on all problems reported for the 2015 Passat.
There is a faint but unmistakable smell of engine coolant coming from the front of the car near the radiator after the car gets to operating temperature. Coolant level is decreasing very slightly over the course of several months. There are no visible signs of coolant anywhere in the engine or on the ground. Car operates normally, does not overheat.