Hello- I tried searching for various "w210 cabin blower fan a/c" etc and did not find what I think I need. My friend is gone fishing for the summer (as his job) and his wife's car is not blowing cold air inside the cabin strongly- if at all. The a/c system was charged a bit back and that has cold air, but not it seems cold but with little to no air movement. Since they owned the car the cabin blower has been weak. They had the cabin air filter replaced which changed little. Please give me advice...