Outdoor Smell & Fumes from A/C vents
 

I have a hyundai Tucson 4x4 2009 model having it for 4 months now. After 2 months of driving I started smelling outdoor fumes from other cars on the roads even my vents are closed. I have taken it already 3 times to the dealer mechanics. They have check for the leak and check the motors and adjustment on the control and they said everything is fine. Until now whenever I am driving at the speed of 100kph above I smell a misture of fumes & outside air entering the cabin. I cannot breath so I have to open the windows just to get fresh air. I have checked the climate control filter its clean dont know what to do..:confused:Please help.

Did you turn off the recirculating air vent?

Yes I did, and even when its off while running still I can smell the outside air. I took it to the dealer and let them do the setup or adjustment on the switch they told me never to open the vents as it will let the outdoor air comes inside but even with close vent still smell comes in.
Is there a way to clean the outside air intake above the hood below the wiper? I dont know if this cause the foul odor.:confused:

Did anybody here tried to clean the outside air intake going to the cabin? There is a plastic covering above the hood below the wiper in the front. this is where I think the outside air is coming through to the cabin and filter. Sorry I just dont know the proper term to this but I hope you got my point. Can you share if how to open it and clean it perhaps.. thanks.