Okay, managed to pull out the glove box. I see a black plastic box on a white blower box (I assume that is a blower box)with something like a pin that turns around left and right when I click the air circulation switch on or off. Theres a white plastic thing attached to a metal arm about 15 cm long....

Ivan, this is not an uncommon problem- yes, the plastic armature that controls the dampener flap that opens and closes the air intake is probably broken (the sound you hear). You'll need to take your passenger side panel under the glove box out and probably the glove box out to see it. Others have ...

Hello For some time now, I can feel outside air coming inside my car. Usually when I click the circulation switch On, it prevents the outside air (or exhaust fume from other car) coming in. I can still hear the buzzing sound when I click the switch on, but a while a go, I used to hear a tapping soun...