Thanks for your advise. I failed to mention one thing. I've also noticed a puddle of thick (brownish) fluid under the car, right below the fire wall area. About two weeks ago this fluid was brown in color and lately it is clear and dries up after a few hours. I felt it with my fingers and it was oily at the beginning and dried up after a few minutes and does not smell like motor oil.
Also the expansion hose from the reservoir, is diverted somewhere under the passenger side fender. I have no clue where it goes after that. Thanks