I own a 2006 2.2 petrol Zafira (manual) although this car has probably been the most unreliable vehicle i have ever owned i still love it. Various problems the last being £506 for a new fuel pump, fuel rail regulator, fuel presure sensor. My latest problem seems to be that there is no control with the direction of the air vents. They are stuck on feet. The knob rotates to all positions but does not change the air direction......................is this an easy fix or another expensive visit to the garage ?