I have a 1995 sl 500 the a/c blows cold air center vents hot air out side vents
MBFanatic 9 months 2 weeks ago
Most likely the vent actuators are stuck for the center vents. They are under the dashboard. There is also the duo valve but I don't think that is the problem. Duo valve issues are usually when the left side blow the oposite of the right.