Start/stop button
 

I just purchases a 2006 sl65 with 35K miles for $31.5K. It has this cover where the key should go. I can't see it on any pictures on bring a trailer. Doesn't seem to operate as a button. Thoughts? There were several notations to the electrical system being checked on Carfax (I'm the 5th owner,so who knows).
Thanks

https://cimg2.ibsrv.net/gimg/www.mbw...f92483459c.jpg

I'm assuming you have keyless go? (where the start button is on the shift knob?)

if so, maybe a previous owner put this only as a cover to make it "look cool". maybe you can pry it off and find the original keylock behind it

Looks like just a cover to me.