So, to start off, I'm new on here and I also don't know much about cars let alone mercedes. I am trying to find as much info on them as possible though.

Questions I have: Do all mercedes come stock with air suspension? If not, which come with a spring suspension? Is there any other way to check for this besides jacking it up and looking for yourself?

I am interested in getting a 190e, 230e, 300e or 500e.
I'd be grateful for any feedback. Thank you.

 

None of the cars you mentioned have air suspension. The Airmatic suspension is an option, and at times, a standard option on newer MBs such as E500, almost all AMG vehicles 2003+ etc...