I had engine light 2 weeks ago. Diagnostic said its a crankshaft position failure. Repairman just reset the failure. Today morning when I speed up on 5 th gear engine lost power. ESP, ASR, ABS failure and engine light. I donshifted gear on seleespeed but when I got the 1 gear the engine stoped. When I try to ignitiate it makes a sound of electrical motor, display shows no oil and the crankshaft turns around (i see it when i open the oil cap).

I changed belt, water pump and 1 generator belt (repairman siad that generator have 2 belts and he dont find V ribbed belt). Oil and filter is also new.
What do you pros think of it?

Thank you for your thought in advance.

If the error code said crankshaft position sensor failure, surely that's the first thing to change isn't it..?