Had no idea there was significant risk of damage.Risky business I'd say. Or more of a roulette unless you're absolutely sure it was primed fully. Air can mess up the diesel injection system pretty badly. Cost of repairs is above anything reasonable.
Happy it went well for you but for anyone reading this thread - I don't recommend anything but the software or at least physical refill (with NEW diesel).
I am absolutely NOT sure it was primed of diesel. In fact, I’m very sure it wasn’t. So… count myself lucky I guess.