that is the default mode for the hvac, check vacuum line on passenger side of motor, comes for the strut area over to motor, main vacuum hose for system, mine had come loose
No, the catalytic converter has nothing whatsoever to do with your defrost system.
NO It has NOTHING to do with defrost.
No one! The book had nothing to do with Mercedes, nor did it mention anything about a Mercedes.
The BEST or NOTHING!
The best or nothing.
"The best or nothing"
The best or nothing.
It will do nothing at all to the system.....................
Probably Air Conditioning Unit. Unless that has nothing to do with what your asking.
processing is nothing
Mainly because you don't need a fogged up windshield if you are driving fast. Seriously, the defroster setting is where most autos go to if there is a problem with vacuum. If nothing worked in your dash controls, the one thing you would still need would be the defroster, so that is the default setting. Now, when you accelerate fast, the throttle is wide open, and there is no vacuum, or it is very low, so with low vacuum the control reverts back to defrost. It would be the same as if you un hooked a vacuum line and did not feed your dash controls, you would only have defrost.
they are! you know nothing about glee