I purchased a 2016 Lincoln MKC 2.0 with 96k miles on it 2 months ago, and we just discovered a coolant leak into the first cylinder, causing a cracked head gasket. The engine needs to be replaced, and will cost $15k. Many other drivers have experienced this problem and reported it, and Ford has done nothing to correct the main issue. This problem is causing overheating of the engine, and could potentially cause injury if not fixed.