Hi,

I tried inflating the collapsible spare for the Q7. The owner's manual is silent on this. I used two different compressors and none would inflate it, the air just pumps and comes out of somewhere. It' been inflated before by a shop, and I know it's not flat since it's never been driven on. There is this tricky part with the valve and the screw, I tried screwing the tip all the way in, all the way out, and mid-way, and tried inflating in all 3 positions, and it still will do nothing. Such a simple task seems complex, what's the trick to this?