I own a 2018 Lincoln MKZ. The vehicle Engine overheating warnings came up, and I took the car to the dealership. They informed that the Lincoln MKZ vehicle had a frequent problem with coolant leaking into the engine due to faulty power train assembly. The dealer has seen and repaired hundreds of vehicles with this problem. Lincoln company denies responsibility for this manufacturing defect. The vehicle is only 7 years 3 months and 30 days old with 67914 miles used by single owner. A reputed company like Lincoln should be held responsible for manufacturing and marketing vehicles where the power train and engine fails on a fairly new vehicle.