Something I just realised having had the car for a couple of days is that the drivers side air vent and two centre air vents can be adjusted up and down, but moving the sliding centre bit side to side does nothing.

I'm presuming that like most cars there is supposed to be a way to adjust the airflow side to side? Just a bit weird that all 3 are the same (I forgot to try the passenger side, but the rears appear to move). Of course I could be missing somehting obvious.

The user manual isn't clear, and the workshop manual just tells you how to remove them.

Car is a 2011 125TDi Highline.