is basically copy-paste of page 36 inside document posted, and it says: "Electric front seats, with adjustment for height, forwards and backwards position and backrest angle. Must be combined with through-load system, Electric Climate Control and electric lumbar support. "
it says electric front seats, but is NOT saying with ELECTRIC adjustment for height so for me it seem quite playing with words more than actual feature, however there was some conversation on forum a time ago and someone says that electrically controlled seats weren't available for a3... but obviously I can be wrong.