A/C blows cold or hot but doesn't regulate temperature. I can hear a flapper door flopping around under the dash since this problem started. Any suggestions? Thanks.
IT sounds like you have a problem with your blend door. Either your going to have to learn to take apart your dash, or take it to a qualified mechanic.
Search Mercedes-Benz 300-Class Questions
Mercedes-Benz 300-Class Experts
Related Models For Sale
Used Cars For Sale