Cars Q&A

I bought a Santro LPG GL model car last august. My problem is that from day one, my a/c is not so comfortable. After many trips to the Hyundai service station, the grill temperature still gets cut off at 13 degrees celsius and restarts at 20 degrees celsius. In case of highway driving, the blowers dont blow enough after 5 hours of driving.I want to know if this is a common problem or only emanates from my car. All said and done the car is not getting cool enough. lf any reader has any solution, i would be grateful