 I purchased a 2015 Jetta SE, new, in October of 2015.  As soon as the weather was warm enough for me to need my A/C, I noticed that every time I would travel long distance on the interstate, my A/C would stop blowing cold air. At one point, I pulled over and had someone look under the hood only to see the A/C components were frozen.  Once I would let them thaw out, it would blow cold again for a few minutes, until it would freeze up again.   I brought it in to the Lafayette LA dealership three times for the same issue only for them to tell me that they....CHECKED AND FOUND COMPRESSOR PRESSUREFLUCTUATING ON LOW SIDE AND COMPRESSOR PUMPED DOWN TO 20 LOW SIDE COMPRESSOR IS ACTUALLY COOLING TO WELL CAUSING FREEZE UP . REPLACED THE AC COMPRESSOR AFTER CONSULTING TECH 20. RECHARGED AND RECHECKED ALL IS OK NOW.  It still continues to do the same thing, and now they are telling me that I am not running my A/C correctly and that it "states in the manual" how to properly use the A/C. I can also feel air coming out of the area where my radio and temperature controls are located.  I've never needed a manual to know how to use my A/C, Ive always just used it and I have never had this problem in any other vehicle that I have owned.  I also have had to add anti freeze to my car twice since I have purchased my Jetta, a year and a half ago.  I was told that they checked it and there was no leak, but that it was normal for that to happen sometimes.....!!!  Now I am having issues with my seat belt alert going off while I am wearing my seat belt, and since my last scheduled maintenance, my car sometimes acts like it doesn't want to start, and my sunroof doesn't always close the first time that I try to close it.  VW has yet to find anything wrong with any issues that I have had with my car, and their service manager was not at all pleasant to deal with.