Which x250 XF models have adaptive suspension?

 

It depends.
On market and model, with differences between USA/Canada and ROW (Rest of World), model (base vs luxury vs portfolio vs S vs XFR) and mid-life update (in 2012).
Even then if it wasn't standard it was a cost option on some models, IIRC it was only ever standard on the XFR (and maybe the SV8/Supercharged).
The only way to know for sure if a particular car has it or not (other than the XFR) is to open the hood/bonnet and look at the tops of the front strut towers - if there are wires running to plugs on the tops of those towers it has adaptive suspension, if no wires it does not.

 

thanks for the explanation. Can you lower the ride height on an XF that has Adaptive Suspension

 

Yes, many have done so.