Side mirrors will not automatically close when car is turned off. on 2001 Mercedes-Benz S500

How do you turn this option on. I was told by dealer that the option to do this is on the dash display. I was told that all 2001 S500 series has this option.

Asked by for the 2001 Mercedes-Benz S500
The instructions to customize your cars behavior; is in the Car owner's Manual.
Where I've looked through the enitr book and could not find anything. The dealership told me that particular VIN does not come with that option. I have never heard of anything stupider than that. An S-500 Mercedes doesn't have that option, what a joke.