My 1994 Mercedes E class 300 Diesel there is no heat

Will it work on high , prob fan resister

I have a 2000 pontiac grand prix with a digital climate control system. The heat quit working, it doesn't blow out any heat. Now that it is warm outside the air stopped blowing out any air. The digital temperature on the climate control is not correct. When it states that it is below 30 degrees on the ext and it is warm outside the air wont be cold. Once it starts going above 30 degrees the air gets colder. Today the blower stop working all together. Was told it maybe the climate control unit was bad. You can hear the door opening/shutting when you switch the temp from cold to hot. But there was no heat blowing out whatsoever in the winter time. Could you please give me your opinion on whether or not it is the climate control unit or something else?

recharge freon. Most likely cause to A/C not working.

Center vents only open for A/C or cold air. If you turn to full cold then the pod that controls that door has gone bad or the dial has it closed off.

heater not warking for my C180 mersedes, blowing air but no heat coming out, hot water which coming from water pomp doesn,t go throw,

HAS THE COMPRESSOR CLUTCH CONTROL MODULE BEEN REPLACED? ANOTHER PROBLEM IS THE CLOSING COIL OF THE ELECTROMAGNETIC CLUTCH GOES OPEN IN HOT WEATHER, HAS THAT BEEN REPLACED.

start by inspecting your monovalve(located behind battery in engine compartment. The diaphragm is probably torn- you need to remove the 4 retaining screw off the lid and pull out the solenoid. on is the diaphragm. when it is torn hot water enters your heater core all the time

Hello, This system has a few components that can cause this. You may have a bad temp regulator box, located behind the glove box, or a bad temp sensor, at center of the dash, or a bad pushbutton unit, (climate control panel}
If you pull out your glove box, make sure that the foam hose that connects your temp sensor to the hard black tube is connected. This provides airflow across the sensor so it can work properly.

If you find this information to be correct would you please enter a "fixya" rating.
Thanks, Gator241

the vent on the cold side is not opening properly to route the air thru the heater core to the interior. you need to trouble shoot that tho i suspect it may just be a vacuum hose off.

Robert

vacumn pipes on the trampillias(vacumn diaphrams )not working right