Car turns off
 

Hi everyone, I'm having some random issue with my car. I looked at dozens of different forums and haven't found a solution. I own a 2007 bmw 525i with about 115k miles. Just for the past couple of days i've been getting some malfunctions. I have attached a pic of the malfunctions. I also get the brake light (orange in color) and the triangle with the circle over it (traction control off) i can't turn it off or on and sometimes the SES light but goes away. also when this happens the car shuts off. after i remove the key and turn it back on most of the errors go away. I've read that it could be the steering angel sensor or speed sensor. Anyone experience anything like this or similar to this? it usually happens when i turn the car on or if I'm stopped at a red light or in traffic. Any help would be greatly appreciated. thanks

Malfunctions:
DBC Malfunction
Drive Control System
Start-off Assistance inactive