found deisel water and gas in my tank

[IRA51]

Your dealer is just trying to get it right the first time (maximiseing his profit that is ) you should post the name of the dealer so others won't suffer the same rip off in the future . flush tank,new filter,new pump,fresh fuel 2 cans of Seafoam drive on. if the injectors are indeed bad you can change the later if needed ,but very doubtfull .