2016 E350 Sedan less than 300 miles on it
Brand new car will not crank, lights won't come on,
etc....nothing! Car keys are both new, took out
starter button and tried both keys...nothing. Doors
were all shut, lights are always on auto, trunk was
Sounds like a wiring issue. Why are you ripping your brand new car apart? That is what new car warranties are for. Call the dealership and have them send out a rollback to take it back to the shop. I'm sure it's all included in the warranty.