ST TDCI
Couldnt see a flap by the pollen filter?
Just open the flap with your hand mate.
Most likely means the motor is faulty. No idea how easy it is to replace though.
How many times a year do you actually turn the recirc button on? Ive never used it on any car.
I use the re-circ quite a bit (this morning in fact). When the blowers are on and you're following a stinky bus or something, turn it on and it stops the smell getting sucked in.