My 420SEL is not putting out any heat, no matter which setting the fan is on. I turned the temp control to max heat and nothing. Cool air only blows (outside temp is below freezing). Engine temp is normal. 80 degrees is reached in normal time and stays at 80 while driving, so I don't think it is the thermostat. Obvious first conclusion is the climate control buttons, any other ideas?
PS. Benzmac if you are there I replaced the OVP relay and my rough idle and stalling problems are cured. Thanks for the advice.
1995 E420 - retired
1986 420SEL - retired