I hear cracking noise for about 5 sec when I start my Stilo. I think I have problem with air recirculation flap (climate control), but I don't know how to dismantle it. Can someone help me with some pictures?

I have tried to solve the problem.When I dismantle some things I can see the flap and it's cracking in upper position when it is fully opened. I pushed hard the control motor and I haven't heard any cracking more. I tried to take off that motor but I didn't know how. It seems to be very complicated. Please help!!! :bang: