I bought this to put in my 2013 E350 in order to swivel, but I think it will fit anything in the most recent two generations. (I ended up going scheel-mann).
It was a new take out, and I had it installed only a few hours of driving time (while the S-M seat was ordered/delivered).
Condition is like new. I didn't realize when you buy seats they don't come with the seat belts, so just a heads-up that you'll need to hang onto yours.
I paid $350 plus shipping, but don't expect someone to be as excited as I was to get one. Will to take the best offer in the next week or so.
Here's where I bought it.
https://www.ebay.com/itm/383894669612