Before the dealership changed the crankshaft sensor was there a DTC indicating that the crank sensor had an intermittent failure? If not, then the dealership doesn't know how to use their scan tools correctly. Next you need to check to see if the your Mini is having its fuel supply interrupted. You need to check for fuel pressure immediately after the Mini stops running. A defect in the fuel pump itself or the fuel pump relay opening could cause the problem that you are experiencing. I had a Porsche 944 turbo S fuel pump that would jam intermittently causing the car to stop running under all types of different conditions and temperatures until the pump finally quit for good at 2:00 AM. We cut the fuel pump apart and found a small part of weld splatter stuck in the pump rotors that bounced around until it finally lodged in one pump rotor and stalled the pump for good.
Vad maine ce raspuns imi dau.
Masina nu este gata 
Dar mi-au dat o alta masina la schimb 
O garsionera pe patru roti 
