One problem related to coolant leaking 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.
My heater core is bad. There was a previous recall on older Passat models, but for 2015 it is not included. I had to pay $871 to have my heater core replaced, as it started to leak coolant in my car. One of the hoses going to my firewall also busted, so it had to be changed. The car was leaking lots of coolant from under the car too. On 9/11 after they supposedly fixed it on 9/07/19, my low coolant light turned on. I was near dealer, so they said they would look at it. They think it had an air bubble that came out, which made my coolant light come on. They topped it off. Dealer said they changed my heater core, but I still have no heat inside my car. Taking back 9/23 to have car looked at.