Angelo

8 hours ago, JustBadly said:

There are 5 blend motors, remove them and disassemble. Clean and regrease the carbon tracks. Download the workshop manual for a guide. A gurgling sound on startup is low refrigerant for Aircon. Halfords sell a R134a refill kit but fill in stages, it's easy to go over pressure.

Thank you Justin, the center blend motor has stopped working. Now I have another issue. 

When the car is idling, it does not produce cold air but as soon as I start driving (rpm goes up) I get cold air.

How can I take the white clips that hold the rods to the stepper motor and the lever?

thank you in advance for your help

On 5/24/2015 at 12:40 PM, Mr Lawrence said:

Think you take the glove box out and there up behind the dash.

Don't know about the fuse but worth a check

Also, have you ever heard a gurgling noise on switch off??

I just came across this post. I have the same issue. I used to hear a gurgling noice for awhile before the front center and side vents stopped working. 
I see the stopper motors and the one behind the center console (difficult to get to) seems the only one that’s not moving. 
I have a 2008 s-type