BMW 520I

iv bought an e39 bmw 520 and i drove it until petrol run out and put petrol again in it but it does not want to start does anyone have a clue why engine is turning and tryin to start but it dies again

how much u want for the seats

im looking for bmw e39 seats preferably leather wit door cards im in ireland if u have any out there of a crashed bmw i would like to buy