To my surprise the local mb dealer was able to get all of the parts for the fuse relocation within two days. After relocating the fuse the a/c is working better and more consistently but I have noticed that when its very hot and it starts to rain, thats when the ac acts up. Just today for example the a/c was working fine even though it was 90 out, with the temp selector set at 22c, the system maintained the temperature perfectly, but then I drove into a small rainstorm and as soon as the rain started, the air stopped blowing out from the center vents, got hot, and the blower slowed down. So I moved the selctor wheel to "min" and initially the air out of the vents got slightly cool again, but when the rain stopped the a/c started to blow out nice and hard again from all of the front vents. I moved the selector back to 22 deg and it continued working normally. Now I can recall similar behavior in the past when driving through the rain, one day the a/c stopped and the windows fogged up because it got so humid. It seems the system has an issue with moisture, any idea what may be wrong?