does that year have an internal anti theft device that wont allow car to start on 2001 Mercedes-Benz SL500

my mechanic told me that year has a internal system that even with the key the car will not start if it thinks its being stolen?

Asked by for the 2001 Mercedes-Benz SL500
1 answer 1 comment
Do you have another key, or it could be the reader at the end of the lock cylinder.
I do the strange thing was after about 1/2hr the car started right it does have a anti theft system to stop from being stolen? I was parked on a downhill with front end facing down and it turn over but wouldn.t start