HELP recondition injectors have blown engine
2003 w203 220cdi
Basically
After I changed the injectors engine smoked on start up badly and just well smoked in general, no power and lumpy noisy. Took to mercedes specialist , he said all the new injectors were bad. on the Short drive home all HELL broke loose, the engine suddenly spooled up, i pulled over and it kept running even when I turn the key off, stalled it by putting in gear and engine shut down, Huge cloud of white smoke, got videos of it too luckily. white smoke continued coming out of the exhaust when it wasn't running.
Head Gasket Blown?????
Engine Gone???????
Its basically stuck 2 km from my house and Im without a car
Gutted I polished the seats, high temped greased the injectors, repaired the threads of one or the bolts with a time cert and Had done a bloody good job, unfortunately let dow by the injectors.
I up S*#t creek and I aint got a paddle.
The massive amount of white smoke??? is it saveable? engine cooked? dead? don't want to
waste money it if its stuffed, never saw so much smoke , like a bomb going off.
The initial issue was a slight leak of the injector closes the windscreen, indecently this is the injector I did the time cert repair on also, everything is connected, torqured correctly. repaired correctly. with it being high milage I though I get all four changed and have it running like new. Mercedes specialist did a diagnostic on it and said all four were not good, I didn't believe him . the drive home proved me wrong, I told him before the diagnostic i would be replacing them so he's not making anything off me by telling me fibs, he said take it home but don't continue to drive it till their changed.
immediately after the injectors were changed the problems arose
I just don't know if I've cased serious damage


