Warranty after warranty!

I purchased a ford ranger 2.2 xlt d/c in November 2017. (1 of 9 rangers bought at that time) Before I took it had warranty claim for light switch, 5000km later tyres started to peel, call back for glow plugs, when removed broke a piece of plug off, had to open up to remove piece of glow plug, rust spots on tail gate and doors, was repaired, but spots came back, ford say it is an industrial fallback, ***. It's a new vehicle it shouldn't have rust on even if I stayed on the coast. Then some or other air sensor is faulty and needed to get replaced. When will it stop? Dealer said phone customer care, do so and they say they only deal with warranty claims, dealer said they willing to help with new deal, but there is gonna be a short fall, and i fell ford should handle that for sending out a defective vehicle.