I have been struggling with a strange problem in my '89 300e. When
setting the climate control to heater (floor and Defrost simultaneous),
I get heat out of the following vents:
Drivers side dash vent, floor, windshield, rear driver side floor
Passenger side dash vent and windshield.
I cannot get any heat out of the front or rear floor vents on the
passenger side (thusly, my wife freezes). Everything works as it
should (i.e. all settings for the climate control) except for the
passenger floor heating. I have removed the glove box to observer the
movement of the vacuum control for the system, and it looks to be
Anybody have any idea's
Warm Thom, cold wife.