Although it's 104 ouside today my mecedes benz e420 runs hot when I turn on the air conditioner. Why?
Couple of reasons. You may need to have the Radiator backflushed to remove sediment. You also have an Electric cooling fan which may be malfunctioning. They (fans) often have more than 1 speed and high speed may be broken so it can not keep up with extreme heat.
Some fans use more than 1 relay to switch the fans and the second stage relay may be bad.
Overall, the A/C coil is placed in front of the Radiator and depends on airflow to function. This makes the air available to the Radiator much hotter so the Radiator is having a hard time cooling the engine. The Electric radiator fans kick up the airflow to help both systems out.
A dirty radiator, old antifreeze, etc. can affect performance.
I hope my solution is helpful. Radiator shops can service most Brands.
SOURCE: My air conditioner won't blow cold air. It just blows air.
Hello I'm a M.B. tech. 1st you need to know why the freon is low. Hopefully it just needs to be serviced. There is a component located in the lf of the engine compartment called a receiver drier. It soaks up the moisture in the freon so the gases can work the way they are supposed to. On this unit there should be 2 switches(I believe they were combined into one switch in 98. 1 switch is a temp switch that operates your electric fans, the other is a compressor cutoff switch. Assuming the compressor is not coming on-take a fused wire and bridge the 2 contacts- If the compressor does not come on at all there is another problem(it is not low on freon. On the condenser there is a high side port(it is the bigger of the 2)By the brake master Cyl.(lf of the engine compartment thereshould be a smaller low side valve in line with the fuel cooler hose. Usually you can hook up a machine to the low port and **** freon in through that port. Assuming you do not have a refrigerant machine. It is very self explanatory on the bottle of r 134a refrigerant which can be purchased at your local auto supply store. I would start with 1 lbs. and add dye with the freon in case there is a big leak. If the system is overcharged it will not cool properly. I believe the system capacity is approx. 2 lbs. Add a few ounces after the first pound until a/c system is cooling properly and the electric fans are also coming on when the system gets to high. If you get a can with a good Gage set on it you should see the high side between 150 and 2000 psi(fan coming on at max. press.) also the low side should read about 35. It is about the temp of the evaporator which is i=located in the dash and the blower blows through this component out through the vents. Hopefully I have been helpful.
SOURCE: HOT & COLD ELECTRIC VENTS NOT MOVING.
Blend door actuator. When it fails for some reason it turns to the hot side and gets stuck. Dash must come out. I usually do it in 3 hours, because I've done it numerous times.
SOURCE: air conditioner isn't blowing cold air
Could be a number of things...electrical connections causing the compressor not to run. Turn on AC and turn your thermostat all the way to cool...now visually check to see if compressor is engaged and not just free wheeling. Most likely you lost your refridgerant due to leak in the system...would need to find leak and repair then have your system re-charged with refridgerant. Best case scenario...your system just needs a charge of refridgerant due to not having enough.
SOURCE: 2000 VW Beetle air conditioner stopped working
FUSES ON TOP OF BATTERY.FUSES AT THE LEFT END UNDER THE DASH OF THE INSTRUMENT PANEL.LOOK FOR BLOWN 30 AMP FUSES.
Testimonial: "Found the fuses! There are 3 on top of the battery and I cannot get the one out! Suggestions? Thanks!"
SOURCE: 1997 mercedez benz e420 radio code
HALLO ,I HAVE PROBLEM WITH MY MERCEDES BENZ E CLASS 280 VIN CODE IS wdb2100631a448256
PLEASE SAY TO ME FACTORY RADIO CODE WHAT IS?
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