PeachParts Mercedes-Benz Forum - View Single Post - Is this how the climate control is supposed to work?

bwheitman · #2 11-30-2004, 06:42 PM

All MB cars give 10% to the defrost at any setting to keep the windshield clean, When you hit the defrost the blower goes to max, that is normal too. The fact that you have no heat is likely not related, you are probably not getting any hot water to your interior coil. Trace your heat lines and check the valves, there is probaly an electric one, or even an auxillary pump on your car that supplies hot water to the heater coil. These are pretty common to goof up. Take a look at those and let us know if you can find the problem.
Good luck!