Have a 2015 200s with 50,000 miles on it. Started having cylinder 5 misfire, replaced the spark plug and coil. Problem went away for two days then came back. At which time I replaced the fuel injector and intake seals. Again problem went away for a few days then came back as cylinder six misfire and random misfires. At this point I’m stuck on what to do. I have an extended warranty, but not able to get it into a dealer until the 9th. Any suggestions are greatly appreciated.