Memory seats... is this normal behaviour?

[BMF]

I have not noticed this in my W205, it is the sport premium plus with the full electric memory seats for both driver and passenger. There are individual buttons for seat base forward/backward and up/down, tilt and front section extension, seat squab forward/backward and multi position lumbar support, the headrest has its own button for up/down, so I will now have to test the system to see if I have this feature too.