NHTSA Complaint #11427046 — 2016 FORD FUSION

My fusion has had a rough idle when starting for the past year. I took it in to the mechanic and they said the problem was due to a backfire. They replaced the spark plugs and coils for around $500-$600. About 5 months later, I get e check engine light and a warning that the engine is overheating. Take it to the mechanic, where they figured out that this consistent issue is due to a head gasket leak, where coolant is going into the engine. From doing research, I have noticed that Ford Fusions with an eco boost engine have a poor engine manufacture and that this issue is prevalent in most eco boost engines. The new fix seems to be ranging from $1,200, and I have tried to diagnose this issue multiple times. This isn't easily distinguished by the engine warning, and can run the risk of drivers driving with lower amounts of engine coolant. If the engine overheats it can make the engine catch on fire. Although this did not happen to me yet, it has been months to diagnose this issue, only to find out that it is due to the engine model, and that leaving it untreated can cause serious damage to me and the engine.