its possible they put 6 speed boxes on the later ones i suppose, i've never seen one though
i've never heard of a 6 speed 2.0 either as far as i knew it was only the 115 BHP, 130 BHP, 150 BHP GT TDI's and the 1.8T 180 that had 6 speed
air con wasn't standard till 2001 or something
is it actually 6 speed or has some mupet put the wrong knob on it?