Mondeo 2015 tit x won’t turn off!

[Daniel W]

My first post so apologies if I upset the admins by cocking it up! 
 

went out today to my Mondeo 2015 tit x estate , wouldn’t start! Jumped it and

started however now won’t switch off , every warning message cycles on screen and it’s being very strange , was fine yesterday. RAC man said he can’t help. Having to stall it in gear then press ignition button to turn it all off. 
 

when I press the start buttom

while running car shuts everything down including tft display radio but engine still runs! 
 

ive disconnect battery for 30

mins , done a bms reset tried the sparE key to no avail! 
 

😔

[nicam49]

Turbo seals shot so that engine is running on /consuming  its own oil?  If yes, then beware it will destroy the engine! 

[Mark M]

Sounds like jumping it has fried something in the electrics.

[pragmatix]

I had similar, it was down to corroded fuse box in the engine bay, not the fuses but the tracks underneath, worth checking.