My 19 plate T-gdi 4 has it. It can be deselected from 'driver assistance' menu so it's greyed out, or temporarily from a button to the right of the steering wheel. Mine is on all the time and is very handy as an extra pair of 'eyes' and 'lights up' in the mirrors and/or sounds if you indicate to pull out (or in) and there's something in the blind spot or just overtaking.