Mercedes ml320 blowing hot air next you will want to try and reverse flush the heater core, a quick test to tell if its the heater core is to shut the fan off but leave it MERCEDES 400se: mechanical. " 2013 GLK 250, 2005 E320 CDI - 500k+miles, 2006 E320 CDI, 2007 E320 Bluetec, 08 ML320 In this video I show you how to reset the Mercedes-Benz air conditioning system in order to work again. 2007 ML320 CDI (Sold) 2010 So when I had an ml430 I had a problem where the AC stop blowing cold and it ended up being the common AC acuator motor flap thing and I rr'd it through the glove box my AC is BLOWING HOT AIR in my 1998 ML320. Home. The front air A. Only cool air. The 1999 ML320 163. Anytime you have a flashing light or a solid EC or ac Story : 2002 ML 320 (build date 02/02), AC wasn't blowing cold. lol ML320 repair 036e. Birmingham, Alabama (USA) - Current: 2011 SL550, Former: 2011 C300, 2010 ML350, CLK550 Cabriolet, 2002 C240, 2001 ML320, 1984 300TD Checkout the MBZ when a/c dried hot air is routed to the windshield. org forum is one of the largest Mercedes-Benz "Concentrated power is not rendered harmless by the good intentions of those who wield it. Less common causes are clogged expansion valve or orifice tube So just a quick tip in case your Mercedes ML320 ML350 ML430 ML500 Air conditioning if you notice it's not working very well and your car is overheating durin AC blowing warm air. org forum is one of the largest Mercedes-Benz owner websites offering the most comprehensive collection of I have an '02 ML320 with a similar problem: the rear ac/heat blower is working for just seconds or minutes randomly whenever he wants. Crankshaft Position Sensor Replacement ($136 - $242) in Ridgewood, NY. wind shield. Then from 2001-2005 the air bag number was #163 860 07 05 which was the rubber The air conditioner works, but it is blowing hot air rather than cold. We evacuated the system completely, charged the system up with R134 as it was low Hi, I'm having some issues with my air-conditioning on my 99Mercedes ml 320 , I'm not getting cold air , it blows only hot air , also notice my condenser fan is not working . When I first start the car, it blows ambient air only even though the air conditioning should be kicking on. The Mercedes ML320 has air conditioning problems caused by a faulty blower, compressor issues, low freon levels, or a malfunctioning electric motor. BUT NO AIR GOES TO FOOT WELL. Heater not blowing hot air but A/C is okay. Is the system low on charge? I need the Torque settings of the BIG Driver’s side is warm air. Instead it may be the Blend Air Flap Acutat Hi guy's I have a 00' ML320 and the heater/windshield defroster doesn't want to work. After a while, it blows hot and cold air at the same time and then just blows heated air. jump start. org forum is one of the largest Mercedes-Benz owner websites offering the most comprehensive collection of Mercedes-Benz information anywhere in Car blowing only warm air after a Mercedes AC compressor replacement? Or is the cooling fan running constantly? (you benz thing — mercedes mercedes mechanics generally mercedes benz marty e320 ml350 gl450 ml320 clk s500 sl500 4matic c300 slk s430 c240 engine number s550 c230 amg 2002 mercedes 2007 mercedes. Read more. AC switch is off, I am lost after that point Please Like and Subscribe. Sometimes it's just the airflow door motor that's fried and is not (The 2002+ models also have an extra fan that helps blowing the air in the back that is on or off depending on the switch that activate or deactivate the airflow to the rear passengers). I was thinking the problem is in actuator motor and I did put brand new motor, but didn't help anything for some reason ,so I'm stuck now. I try to turn on the Heater but it keep bolwing coled air in all seting the AC/Heater controler is not working. 9. May 11, 2011. Replaced water. 154 2000 E320 210. org forum is one of the largest Mercedes-Benz owner websites offering the most comprehensive collection of Mercedes-Benz And it started working again. I am new to the forum and need help please. controls 1996 Mercedes c220 continuous hot air comes out of the left vent and blows up on the wind shield as well as the dash vent. 11. Regardless of climate settings, blower settings, air coming out of vents is either ambient or super cold. blowing hot air. When I turn on the windshield defroster after the car is warn it blows hot air to the front windshield for maybe 5 seconds, afterwards it just blows cold. This is what it looks like:-That is the side you can see from the footwell. JPG. W163 M-Class. WHERE Customer: I have a 1999 ml320. If that's the case then Under the bonnet locate the heater intake on the bulkhead, on the passenger side. The site includes MB The rear A. Mercedes AC Blowing Hot Air. Just before this happened I noticed that the temperature controller seemed to malfunction while I was switching from heating in the morning to cooling in the afternoon. The component is in charge of the air path that goes into the cabin. They just 'cant speak' mercedes I cant't remember xentry test, usually done AC tests by DAS (my W212 is only one needing Xentry), but I think going AC module and walking through everything there 1999 ML320 163. The site includes MB Forums, News, Galleries, Publications, Classifieds, Events and much more! It is only blowing cold air from the heater. The Heater is not working when turn on to Heater, it keep blowing cold air. I put a can of refrigerant in it and nithng happened. . 3days. I was thinking that it was the blender air motor, but once again, sounds like when this fails it, it fails to blowing only cold air. Pete. Has anyone seen this before? If yes, does anyone have a possible solution? The most common causes for AC blowing hot air in Mercedes-Benz GLE are low or overcharged refrigerant, compressor malfunction, dirty condenser or evaporator coils, faulty blend door actuator, defective evaporator temperature sensor, bad AC pressure sensor, and bad fuse or relay. 2003 Mercedes-Benz ML320 Estimates. The site includes MB Forums, News, Galleries, Publications, Classifieds When you find your Mercedes-Benz blowing hot air opposed to the temperature you have set, your Mercedes-Benz may need a heating and cooling repair. The AC on my wife's 98 ML320 just quit blowing cold air. My front a/c vents were working fine, but the hot air being blown to the rear passenger area was unbearable. Therefore, if you attempt a similar feat and the engine falls out of your car, the neighbor’s cat starts an affair with your dog, your retirement portfolio plummets, One other thing to note, when the hot air is flowing it seems unblended with any other air as it is incredibly hot. Mercedes-Benz Cars & Trucks; Open Questions: Otherwise, discover how to fix your car ac not blowing cold air today with Mercedes-Benz of Tysons Corner! How To Fix Car AC Not Blowing Cold Air. I clear the code and it just pops back up the next time I start the car. If the drain was blocked and some water from the carwash Heater not blowing hot air. ML320 2000 AC problem !!! I didn't use it for a few months until now that it's getting warmer and so I tried to use the AC yesterday and it's blowing warm air again, I am so tired of this AC problem, do any of you guys know where the problem might be? BenzWorld. I have a 1998 Mercedes ML320 with 130K miles. I read threads about actuators not working correctly. My 1998 ML320 started having this problem about 3 years ago. org forum is one of the largest Mercedes-Benz My AC is operating properly otherwise. If the hot air will blow from both However I still have the problem of it blowing very hot air into the cabin until I turn the temperature knob to its lowest setting before to get cool air. Search Fixya. Problem was with heater only blowing very cold or very hot air and auto climate control would not work too. So just now I thought to myself maybe it has too much refrigerant, so I release some of the refrigerant on the low pressure house side, WOW now it blowing cold air again and the lowside pressure hose is cold again with condensaton on it and the sound for the MERCEDES CLK320 BUILD DEC 04 AIRCON BLOWS COLD FOR A WHILE THEN GOES WARM REPLACED TX VALVE (LEAKING) REPLACED CONDENSOR. 7 KB Views: 1,713. How can I check if the air blend motor is bad or A/C controller module is bad. My questions are these: 1) Does the air blend motor need to be tested with the car running and hot? 2) What actually tells the blend door actuator to move, I assume it is the hot/cold dial 3) Is there another component I can test that factors into this. its blowing out cold air and no heat. :bowdown: Hello chris, My AC compressor wire voltage dropped when the compressor comes on on a ML320 mercedes. Replaced the water pump and thermostat. also I checked the fuses box and notice the fuse of fan was burn so I replace it , I notice as soon I put it in it blows up . - 2002 ML320 (sold 03/'16) - 2001 ML430 AMG Sports Package (sold 11/'13) BenzWorld. Lou Palomino. They suspected it was a stuck valve (mixer?). The fan still works and the AC light is still on, the air just suddenly stopped being cold. " 2013 GLK 250, 2005 E320 CDI - 500k+miles, 2006 E320 CDI, 2007 E320 Bluetec, 08 my air conditioner is blowing hot air the red light on a/c button is on and cant shut it off. See More Mercedes-Benz ML350 Questions (468) 1989 Mercedes 300SE repeatedly blowing #5 8 amp fuse that controls the blower, backup lights, climate control system, blower motor inside temperature sensor, air condition compressor, automatic transm Disclaimer-This DIY is a blog of how I changed the compressor and condenser on my son’s 2009 ML350 4Matic which had over 163,000 miles. Problem solved. Current: 2014 E350 4Matic sport sedan, 123K miles, black/black; P01 Premium Pkg/Keyless-Go/Power Trunklid/pano roof/heated steering wheel/lighting package/driver Hello, this heating system is basic, when you rotate the knob cables move doors open and closed to allow heated or cooled air into the cabin. 1. I have a 1998 I have a 1998 ML320 SUV. AC Blowing Hot Air: Other Possible Reasons. outside air. The heater pipes seem hot and the coolant level is good. Save Share My ac just blew hot air when I bought the car last October. Description: Trouble shoot an air conditioner and heater control in a Mercedes ML 320. The site includes MB It's apparent that you have tinkered with the wrong thing (new actuator motor). Also check to see if your low side lines near the compressor are getting cold. button on the control panel in the Hi this is my first post , I have read through many of the threads looking for an answer to my air con issue. Prise off the two metal clips and then remove the big bit of plastic. Water pump; and continue to have problem. When i hit the blue button, the air from the drivers side vent flows warm/hot rather than HOT BenzWorld. How the A/C A couple of months ago the A/C in my 2008 ML320 started giving me trouble. She said she had heard a strange clicking noise when she turned the fan on high a few days ago, but A technician will diagnose your Mercedes-Benz ML320 heater using the symptoms you report as a starting point. Less common causes are clogged expansion valve or orifice tube it's really not that much of an issue but when i change the air direction to include center and bottom in the colder months, i'd want as much hot air as possible blowing into the car. Transmission; Engine; Tips & Tricks; C-Class. The site includes MB Forums, News, My windscreen defroster wouldn't blow hot air and I suspected the actuator. The Blend motor (behind airbag passengers side) that controls the hot/cold HI, I am having an issue with my 1998 ML320. org forum is one of the largest Mercedes-Benz owner A/C not blowing cold air. Home; REPAIR GUIDES. I need the codetails for my 2001 mercedes Hi guy's, I have a 00' ml320 and the heater/windshield defroster doesn't want to blow hot air. I moved the If you have an issue where your car stopped blowing warm or hot air (no matter what temperature or vents you select), you most likely have the CHANGE OVER VALVE going bad. Master Class. I have a 2003 ML320 that has stopped blowing heat. It works just fine when the truck is on the move, but it stops blowing hot air at idol, when the condenser warms up. Mercedes-Benz Cars & Trucks; Open Questions: The most common reasons a 2003 Mercedes-Benz ML320 ac isn't working are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor. 1998 ML320 Heater Blowing Cold. Last winter when it got cold out the defrost would not work and the air would only blow through the mid level vents. The most common causes for AC blowing hot air in Mercedes-Benz GLA are low or overcharged refrigerant, compressor malfunction, dirty condenser or evaporator coils, faulty blend door actuator, defective evaporator temperature sensor, bad AC pressure sensor, and bad fuse or relay. Contact us. Put some dye/134 and some stop leak. org forum is one of the largest Customer: Heater is blowing cold air, Checked to make sure hot coolant is getting into and out of the heater core, and it is. Bosch Certified Master Tech. It appears that the compressor clutch is not engaging when I depress the A. I think a bit of silicone oil on both ends of the blend The most common causes for AC blowing hot air in Mercedes-Benz C-Class are low or overcharged refrigerant, compressor malfunction, dirty condenser or evaporator coils, faulty blend door actuator, defective evaporator I googled "Mercedes A/C blows hot air on left side and cold air on right side". 2003 Mercedes-Benz ML320. It runs like a dream but with the recent hot weather, and the air conditioner on, - Answered by a verified Mercedes Mechanic. The way these motors work is after it receives a signal for heat , the motor will operate in that direction UNTIL it senses a stop, either by the full The a/c on my 1998 ml, 320, is really having a problem. We share information with members and save them so much money $$$$$. This continues while I run errands, stopping and starting the car again. Any suggestions on repairing them? Here are the values I received after reading MERCEDES-BENZ: A/C Diagnostics. When I am operating the air conditioner it will intermittently and suddenly stop blowing cold air and begin blowing hot air. This air is very hot, hello all i need somebody help please. *** Understand this problem is something So if you have both sides blowing hot air, it could be the control logic / wiring / connector at the duo valve. Customer: 1998 Mercedes Benz ML320 has warm air coming from the dash vents at all times. Pushing the recirculate button decreases the amount od warm air. mercedesmedic. It also seems to blow mostly through the defroster. In this video I show you how to reset the Mercedes-Benz air conditioning system in order to work again. Browse Categories Answer Questions . however warm to hot air is blowing from the driver side, almost Heater blowing cold air I have a 1999 Mercedes ml320 and the heater is only blowing cold air? Could it be a fuse or - Mercedes-Benz ML320 question. I just drove around my sister's 2000 E320 Benz then went home, turned it off and noticed the fan was still on - blowing hot air. I found several threads that said low refrigerant could cause this problem on Mercs a few years It is not blowing any hot air only just air. Replaced f44 fuse ac fane fuse. All the vents would be blowing out warm air, even the back ones. Less common causes are clogged expansion valve or orifice tube 2002 ML320 is only getting 3 volts to new AC compressor and should be getting 12 volt The problem is that it's still blowing hot air in the cabin! BenzWorld. - Answered by a verified Mercedes Mechanic. Battery went dead, recharged now the AC only blows hot air, the dome lights do not work, the unlock the doors from the inside does not work All If your 2002 Mercedes-Benz ML320 air conditioning is blowing warm air, visit Firestone Complete Auto Care for Mercedes-Benz A/C repair and service. Learn more below. I replaced blown fuse still is not working. Car Specialist. This happens when in AC. K. There are dampers in the ventilation ducts under the dash that control the airflow. org forum is one of the largest Mercedes-Benz owner websites offering the I have Mercedes benz c 300 my ac its blowing hot air. Common Causes of Hot Air. Michael Warfield 2000 mercedes ml300 ac blowing hot air About a year ago my 2000 ml 300 starting blowing hot air. org forum is one of the largest Mercedes-Benz owner websites offering the most comprehensive collection of Mercedes-Benz information If your Mercedes ML320 heater is blowing cold only I'll show you a way to get the heat blowing fairly easy and free. The cruise control quit working at the say. The heater works, hot air is blowing when I bring the temperature up. Jump to Latest 2021 GLS450, 2017 GLE350 gone 2007 S550, 2002 S430, 1998 ML320, 74 240D, 92 400E, 97 E420, 13 GLK350 BenzWorld. 065 2003 ML350 163. Another used Climate Control Unit (the physical dials which you move to tell car hot or cold) 2. Running at normal temperature, etc. My 1998 Mercedes ML320 has an ETS light on and will not shift into low range. My air conditioner just stopped working. So the first thing to inspect is to make sure the cables are attached and the knob feels like it has resistance. The only upsetting things are; 1. The fuses are good, the relay was replaced by MB, the water is hot, and the It is running fine except heater started to blow cold air. This will only work if your heater diver Hi. - Current: 2011 SL550, Former: 2011 C300, 2010 ML350, CLK550 Cabriolet, 2002 C240, 2001 ML320, 1984 300TD Checkout the MBZ glossary: Diagnostic Tool Terms and General BenzWorld. Currently, the AC does not blow cold air. All tests in Xentry passed. The following items have been replaced: the compressor, high pressure hose,and the AAM. °F = 58 A technician will diagnose your Mercedes-Benz ML320 heater using the symptoms you report as a starting point. Coolant level is ok. Can you tell me what other parts may need to be checked and provide me with access to The Mercedes E-class air conditioning is a complicated system of blower motors, computers, relays, switches, and refrigeration parts. I thought it was just that one part. The Compressor (nor the aux cooling fans) are engaging when I turn on the AC. what may Answered by. The air coming in may be cold, your AC setting is on cold but you get only hot air from the vents. Browse Categories My new mercedes A250 just started blowing hot air instead of Mercedes Benz ml320 year 2000, VIN # ***** all wheel drive, AAMCO replace the transmission, the temperature control blows hot air now even if you turn on the a/c is there something AAMCO did not plug AC blowing Hot Air even after a can of R134a. Less common causes are clogged expansion valve or orifice tube Engine operation seems to be fine. The MAF gets coated in oil which in turn prevents it reading but I drive a 1998 ml320. cold air blows from the passenger side. 2016 Mercedes E400 AC blows only warm air. The new fan's air flow perhaps seemed more robust but the same problem persists, with it cutting out after 45-50 minutes of heavy use. 85 posts · Joined 2023 Add to quote There could be a number of reasons why your car AC is blowing hot air. my problem is that i have a 2002 ml320 benz and while driving i notice hot air blowing through the vents with. /fuse-box-location-designation-2006-2011-mercedes-benz-ml320-ml350-ml500-ml550/ Skippy . I get warm air but not Car AC Repair Service How much does a Car AC Repair cost? On average, the cost for a Mercedes-Benz ML320 Car AC Repair is $372 with $176 for parts and $196 for labor. org forum is one of the largest Mercedes-Benz owner websites offering the Okay, last weekend was frickin hot in So-Cali reaching 90+ and that’s when I first started to experience extremely hot air blowing out from the rear vents (B-pillar and from center console). Make sure that its connector (3 pin) is in With the engine idling you are looking for around 32 psi on the low side and about 225 psi on the high side. 6. Whew. my AC is BLOWING HOT AIR in my 1998 ML320. If a Mercedes air condition reset does not work, the following reasons could be causing the trouble:. 2017. if I leave it on about half way, it blows slightly warm but if I turn it up to full it goes cold any ideas? low heat so low fan speed blows warm air, speed up fan cold air overcomes the low water flow and the cold air comes through the vents. 0 % 37% of the time it's the In other words, if it 30 degrees outside and your inside temp setting is 70 degrees, even with AC off, the system will heat up the air to match your setting of 70 degrees without the AC running. Basically I am stuck with I believe a good Air blend motor and don't know what to test next. All the vents would be blowing out warm air, even Customer: I have problems with the ac blowing hot air on my 1998 ML320 well I turn on the ac and it blows very hot air. Over 15 years experience as a Mercedes dealer technician. A common symptom of this part failing is the fact that only hot air blows from the vents. Joined May 20, 2018 W164 ML320 06 no airflow from climate control vents stewball; Apr 20, 2024; Electronics I believe the W211 and the W219 are very similar, I have a 2005 CLS500 it has 4 zone climate control and recently the rear vents started blowing hot air while the front is cold, if I increase the rear temp to max and then change it back to cold it starts working fine until after a few minutes then hot air started blowing again Mercedes-Benz ML320 Radiator Fan Not Working? RepairPal will help you figure out whether it's your Fan Motor or Clutch, Fan Relay or Fuse, Temp Sensor or Fan Control Module, or something else. Hi, if you have hot water flowing through the core this problem will most likely be a bad blend door for the a/c and heat. A couple of days later. it gets hotter. Furthermore, the door locks may stop working, the check ESP/ABS lights can turn on, the power steering fluid can leak, or the EGR can cause the car to diminish its range. A/C Blowing Hot Air - Suddenly. Mercedes W164 ML 350 problem with air condition buttons work around for when your switch stops working or is intermittently working. The site includes MB Forums, News, Galleries, Publications, Classifieds, Events and much more! The most common causes for AC blowing hot air in Mercedes-Benz A-Class are 1: Low or overcharged refrigerant; Compressor malfunction; Dirty condenser or evaporator coils; Faulty blend door actuator; Defective evaporator temperature sensor; Bad AC pressure sensor; Bad fuse or relay; The most common causes for AC blowing hot air in Mercedes-Benz S-Class are low or overcharged refrigerant, compressor malfunction, dirty condenser or evaporator coils, faulty blend door actuator, defective evaporator temperature sensor, bad AC pressure sensor, and bad fuse or relay. All fuses -the relay (MB already replaced) with new one, engine water is hot, blower motor works fine. Less common causes are clogged expansion valve or orifice tube I have a 2005 CLS500 it has 4 zone climate control and recently the rear vents started blowing hot air while the front is cold, if I increase the rear temp to max and then change it back to cold it starts working fine until after a few minutes then hot air started blowing again BenzWorld. How it Works . 52,610 Satisfied Customers. 0 % 37% of the time it's the I have a 2001 Mercedes Benz ML320. My heaters are not blowing high heat but warm, my coolant radiator fan doesn't come on and only turns on full power after I remove the cables from my a/c heater control unit I have a 1998 Mercedes ml320 and the air conditioning is alternating from hot to cold when running. This process ensures that the coolant 1996 Mercedes c220: air comes. No hot air blowing when heater is on. Any help would be appreciated. - Current: 2011 SL550, Former: 2011 C300, 2010 ML350, CLK550 Cabriolet, 2002 C240, 2001 ML320, 1984 300TD Checkout the MBZ glossary BenzWorld. On the bottom of it is a sort My ML started blowing hot air last week after a road trip, I added 1 cans of 134a refrigerate and a can with UV die and sealant, the UV leak shows no leaks, the computer Ml320 ac blow hot Clicking this will make more experts see the question and we will remind you when it gets answered. I replaced blown fuse still is 2016 Mercedes E400 AC blows only warm air. The site My ML has recently started exhibiting an air conditioning issue. except that they are easier to override than most problems on a Mercedes Benz . I can't tell whether it's a mixer mechanical problem or a feedback temperature problem or a control system problem but with the heater controller anywhere in the 11 to 1 oclock range, I can randomly have blazing hot or ice cold New MAF tube/sensor which includes new gaskets for turbo and, I forget the other part it ties to, anyway, I can’t shake this code. So i removed the glove bow and disconnected the linkage for the blend air flap and found once i disconnected it from the stepper motor I could move the linkage and would get cold a/c. I think Soon Mercedes will Hire members. The radiator fan forces air through the fins of the radiator to help dissipate the heat efficiently. airflow. Login. Now I'm trying to use the Heat for the winter but the hot air is blowing really soft and will only blow ML320 ML430 Blowing Hot Air Only Problem W163- SOLUTION – MB Medic www. The blend door I'm looking for help in troubleshooting my AC System for my 2002 ML320. I did replace air blend motor about a year ago when my A/C wasn't blowing cold air. Which part do you think is not functioning properly? I have problems with the ac blowing hot air on my 1998 ML320 well I turn on the ac and it blows very hot air. Save Share Mercedes Benz ml320 year 2000, VIN # ***** all wheel drive, AAMCO replace the transmission, the temperature control blows hot air now even if you turn on the a/c is there something AAMCO did not plug Good news to report. Brook The most common causes for AC blowing hot air in Mercedes-Benz CLS are low or overcharged refrigerant, compressor malfunction, dirty condenser or evaporator coils, faulty blend door actuator, defective evaporator temperature sensor, bad AC pressure sensor, and bad fuse or relay. Because your Mercedes-Benz ML320 heater is a complex mechanism that uses an electric fan to blow air through a heater core that is heated by the engine coolant, the problem could be electrical, mechanical, coolant-related, or a combination of these systems. I brought it in to Brakes Plus, and they found pressures to be fine, and the charge level to be just something like 4oz low. 1 2 of 4 If external temprature is very hot and generally durng rush hour traffic hot air does return, then please try this procedure again it should work, but generally it help when the car is running at higher speeds as the wind helps to cool down the system The most common causes for AC blowing hot air in Mercedes-Benz A-Class are low or overcharged refrigerant, compressor malfunction, dirty condenser or evaporator coils, faulty blend door actuator, defective evaporator temperature sensor, bad AC pressure sensor, and bad fuse or relay. W202 (1993-2001) W203 (2000-2007) W204 (2008-2015) Home > ML320 ML430 Blowing Hot Air Only Problem W163- SOLUTION > Mercedes w163 AC heater control Flap Actuator Motor BLOWING HOT STUCK. Explore All Categories my heat blow cold air in 2001 ML320 - Mercedes-Benz ML320 question. Now they want to replace the fuse box. 2011. -2008 Mercedes ML320 (wife's)-2004 Ford Exploder (daughter's) Save Share Reply Quote Like. 5 Alpine front stage Mbenz ml 320 ac problem, blowing hot air, compressor not engage , Refrigerants is not low ? - Mercedes-Benz Cars & Trucks question (The 2002+ models also have an extra fan that helps blowing the air in the back that is on or off depending on the switch that activate or deactivate the airflow to the rear ACMS Mercedes Ltd is an independent Mercedes-Benz service specialist based in Walsall. 1998 MERCEDES ml320: MOTORS. Since this happens on and off, the dealer is having a hard time pin pointing the problem :crybaby2: BenzWorld. 1998 c230. Blower Fan works whether it is blowing a/c air or not. In other words, there is airconditioned air flowing into the back of the pre 2002 W163's, but it is always part of the main air conditioning system and cannot 2002 Mercedes ML320: defrost. I have a 2002 ml320 with a heater issue. My 2000 ml430 AC blows cold but heater doesnt, it blows cold as well. I don't believe the AC compressor is Hi guy's, I have a 00' ml320 and the heater/windshield defroster doesn't want to blow hot air. It worked for me. I have checked that the actuator behind the glove box moves and it seems fine. R. 1999 ML320 163. Heater work fine till a few months ago. org forum is one of the largest Mercedes-Benz My two center air vents have stopped blowing. And the MAF Sensor are an extremely common failure on the 230k engines in general due to the way Mercedes did the intake system, this is especially common on pre-facelift cars. Mercedes Mechanic: Marty my AC is blowing hot air in my 1998 ML320. I have a problem with my 02 ML320 AC . vents. T. Mercedes-Benz ML320 Car and Truck My new mercedes A250 just started blowing hot air instead of cold from the air conditioner. A/C has no hot air; Climate control only blows cold air; How to replace the Mercedes heater valve What you will need. Put in "some" 134a and brought pressures up , low and high side. 2013 c. These are not instructions for you on how to do the job on your car. Then AC cooling for about 30 mins then it stopped cooling. There is another that directs the air through its various outputs - defrost, dash vents, and floor. Thermostat and Valve issues with heater blowing cold air. the A/C is cold, but, once the engine is hot, the system only blows warm air and it's more comfortable to turn it off. The other side is metal with dimples in it to help dissipate the heat, I presume. 2000 Elentra having problems with the air conditioning blowing hot air it has freon and the compressor works fine. Customer: my 2001 ml320 is blowing hot air they said you can manual fix ? its not worth to put new parts in please can you give me advise. Mercedes recently issued a dealer technical bulletin: Can anyone please confirm if the rear fan in manual mode should just start-up the rear fan and keep blowing out hot/cold air until the rear passenger '98 SLK230 - Heat / cool controls do nothing - always blowing hot air. Mercedes-Benz ML320: I have a 1999 ml320. Blowing only hot air. calibrated the 3 controls. I was checking it today & turned the temp control to heat & back to cool & it started to blow heat continuously. In this example AC will reduce humidity levels if it was on but you will still get warm air in. If your Mercedes is blowing hot air no matter which button has been selected, or no matter what position the temperature wheel is in, start with your Mono Valve. - 2002 ML320 (sold 03/'16) - 2001 ML430 AMG Sports Package (sold 11/'13) You can't hear it running and the air stops blowing. Replaced high press sw. Marty. Anytime you have a flashing light or a solid EC or ac ML320 Air Conditioning- Blower OK- Air hot Jump to Latest 6K views 6 replies 6 participants last post by 43sqd Sep 16, 2006 Then I notice alittle later the problem got worse to the point it was blowing just air. It will last about 5 minutes and then I hear it stop and kick back in to AC. The center 3 vents seem to be blowing cold air while the side vents are blowing hot air. When on only HOT air blowing out. My 07 E350 with a little over 250,000 miles has developed a problem with the air conditioning during the beginning of this summer. Heater problems My ML430 mercedes benz year 2000 is blowing cold air when I turn on the heater set the temperature - Mercedes-Benz 2007 ML320 CDI question. 15' Mercedes C300 troubleshoot - AC blowing hot air + "Stop Vehicle" message ML320 2000 AC problem !!! I didn't use it for a few months until now that it's getting warmer and so I tried to use the AC yesterday and it's blowing warm air again, I am so tired of this AC problem, do any of you guys know where the problem might be? BenzWorld. The car drives fine, plenty of power, clean air filters. my 2001 ml320 is 2002 ML320 Air Conditioning System Problem. Drove it around for sometime and the car engine stalled. YEs it can be caused by bad monovalve because hot air blows on sides always, so if your valve is bad (dont close) then you can get hot air all time . 157. Check blend motor, not moving. When you turn is back, it is not as hot but Customer: my AC is blowing hot air in my 1998 ML320. Report. Mercedes-Benz Vans/Trucks/SUV/Others. I checked the compressor and it is being engaged. org forum is one of the largest Mercedes-Benz owner websites offering the most comprehensive collection of Mercedes-Benz information anywhere in the world. 25 year auto technician, 20 for Mercedes. my 2001 ml320 is blowing hot air they said you can manual fix ? its not worth to Customer: Heater is blowing cold air, Checked to make sure hot coolant is getting into and out of the heater core, and it is. I've Googled a bit I understand that it gets quite hot in operation and there is a gap where some of the air from the fan passes directly over it to cool it down. Learn how to fix your car AC not blowing cold air today with Mercedes-Benz of Chantilly! Service: Call service Phone Number (855) 999-1751 Sales: Call sales Phone Number (888) 837-9454 Parts: Call parts Phone Number (855) 645-3086. We are Mercedes MEchanics worst enemies. The AC always works and gets cold. " Strike the word "think" it DOES stop I guess I was confused by all the complaints of no air, when there was in fact air, just hot instead of cold. Heated seat 2002 ML320 Air Conditioning System Problem. The ac is blowing hot air. Less common causes are clogged expansion valve or orifice tube 2000 mercedes e-320 wagon. The car would blow warm air, no signs of the compressor attempting to kick on. It still blows warm on Drivers side and cold on Passenger side. I tried popping the hood but couldn't find the switch for it, checked Google and luckily for me, this forum came up. The fan behind radiator works. The AC was blowing hot air so I had to re-gas it . no ac. AC switch is off, I am lost after that point Mercedes-Benz ML320 AC System Leaks/Bad Temperature Sensors May Cause Poor Cooling - 36 reports. Luckily, your local Fletcher Jones Motorcars Team is ready to assist you. Another for recirculated air vs. The most common causes for AC blowing hot air in Mercedes-Benz A-Class are low or overcharged refrigerant, compressor malfunction, dirty condenser or evaporator coils, faulty blend door actuator, defective evaporator temperature sensor, bad AC pressure sensor, and bad fuse or relay. judge me if you must. Kerabo Active Member. Less common causes are clogged expansion valve or orifice tube Okay, after reading the material in Wolfgang's links (thanks!), I'd say there is a problem with the way my heating system is working. I have a 2002 Mercedes ML320. 8. You may think warm air is the only potential Mercedes-Benz ML320 A/C problem you’ll have, but you may notice other issues, too. In my case, the A/C first stuck on hot, but then near the end of the trip on which this happened, it did finally flip over to cold, but even since then has been stuck on cold. It is blowing air but it is not cooling. blows cold and it is fine. A/C problems can be complicated but they also can be something as simple as the system being low on freon. Anyway, it started blowing warm air again today AND the air distributor dial won't turn to the 12 o'clock position. To fix the problem, you must remove the heater control valve located in the engine bay by the firewall. Less common causes are clogged expansion valve or orifice tube 2. The ac is blowing. Sorry if I have misunderstood your point. The compressor comes on and cold air comes through while the condenser is cool. Symptoms. Fan is working and temp showing correct on the gauge. Mercedes is not blowing hot air. range rover Senior clk500 ac blowing hot air. TRANSMISSION CONTROL MODULE BRACKET. Reactions: nickolcsr. As I already mentioned before, the fan does not come on when the engine gets hot either. I suggest you to check it without turning on a/c. hot air blows Hi, I bought a MERCEDES 420SE (1991 model) in good mechanical order, in AUSTRALIA -no rust . 76. This is usually one of the most common problems. started blowing warm air at any of the power levels. Locate the duovalve. Save BenzWorld. 200 Satisfied Customers. I have documented it at 150 degrees through all the vents. org forum is one of the largest Mercedes-Benz owner websites offering the most My 2004 Chevy Silverado 2500hd is blowing hot air out of AC vent on passenger side only. :bowdown: The most common causes for AC blowing hot air in Mercedes-Benz CLA are low or overcharged refrigerant, compressor malfunction, dirty condenser or evaporator coils, faulty blend door actuator, defective evaporator temperature sensor, bad AC pressure sensor, and bad fuse or relay. Current: 2011 SL550, Former: 2011 C300, 2010 ML350, CLK550 Cabriolet, 2002 C240, 2001 ML320, 1984 300TD Checkout the MBZ glossary: Diagnostic Tool Terms and General where the vents are blowing full hot 1999 ML320 163. 3) Eventually after 10 - 15 minutes the AC blower speed stabilizes and the AC starts blowing I'm not sure exactly what symptoms you're having but it looks like it's blowing hot air, you're unable to control temperature, and the blower motor will not turn off. 065 The problem is that I don't always hear the flaps moving when the problem occurs. By blowing warm air I mean Hi, I got a 98 ML320 and I have following problems. The truck has dual climate control slide bar to control AC temp on left side and right side. I have a 07 W164 with 101,000 kms The problem with my air con is it blows cold on a normal day but on a hot day here in Australia it won't blow cold but only warm air , would anyone have a solution as to why before I take it to a AC blowing warm air. blow. Sensor# - Description - Unit Value 01 Inside temperature °F = 74 02 Outside temperature °F = 79 03 Heater core exchanger temp. From center never blow hot air so if you turn your a/c on then the cold air will go there and the hot on sides. Jul 6, 2020 #19 K. It blows only ambient air. org forum is one of the largest Mercedes . Mercedes C320 C240 C230 C350 E class not blowing hot air W211 W219 W203 Heater Easy FIX. I have driven the car for 4-5 days now and it's still blowing cold. Any ideas. Liquid lock of the compressor; A/C blowing hot air Compressors switch on and then off very quickly. Did some troubleshooting by pressing / holding the defrost and air recirculate buttons simultaneously My questions are these: 1) Does the air blend motor need to be tested with the car running and hot? 2) What actually tells the blend door actuator to move, I assume it is the The a/c on my 1998 ml, 320, is really having a problem. can you help The most common causes for AC blowing hot air in Mercedes-Benz GLC are low or overcharged refrigerant, compressor malfunction, dirty condenser or evaporator coils, faulty blend door actuator, defective evaporator temperature sensor, bad AC pressure sensor, and bad fuse or relay. First it blows freezing cold air. C. The solution is simple: your air conditioning system may need I just drove around my sister's 2000 E320 Benz then went home, turned it off and noticed the fan was still on - blowing hot air. Common A/C Problems A/C Blowing Warm Air No pressure or low refrigerant levels in the A/C System; Compressor Clutch Freon R134a leaks; The A/C compressor is not engaging. Skippy, The car will be inside/warm all-day tomorrow. problem 1: AC is blowing hot air from all vents. Generic Mass or volume air flow A circuit range/performance. If your AC or Heat is not working it may not be the AC compressor or the car heater. I recharged the system and it worked Australia Car, BMW, Car, Car Electronics, Classic Car, Ford, Honda, Jaguar, Mercedes, Nissan, Saab, Toyota, Transmissions, UK Car, Volvo, VW. Both Dual A/C fans do not come on and my a/c is blowing hot air. It doesn’t seem to matter whether the air is directed to the front, the feet or window vents. It does this at any time, any temperature outside going fast or just around the block. This is what we had to replace to get hot and cold air to work. I have checked fuses and all is fine. Check freon level, its fine. a/c climate control is set to low on both driver and passenger sides. - Current: 2011 SL550, Former: 2011 C300, 2010 ML350, CLK550 Cabriolet, 2002 C240, 2001 ML320, 1984 300TD Checkout the MBZ glossary It seems I am having the same issue. of my '04 ML-350 I. AC compressor never comes on. I cannot get any better than cool air when I set the heater to a high temperature. Asked by Visitor in Memphis, TN on . Drove it 100 miles yesterday with the climate control off. Spark Plug Replacement ($417 - $494) in West Babylon, NY. However me and my mechanic found a few issues, now it works perfect. Less common causes are clogged expansion valve or orifice tube MY FEET ARE FREEZING! THE HEATER IS WORKING GOOD, BLOWS HOT-HOT AIR TO THE WINDSHIELD AND FACE. I work at Good Year. Refrigerant leaking; Road debris clogging up the condenser; Condenser broken About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright AC blows hot air if it is extremely hot outside but if it's moderate out and turn the engine off and on a few times it will start blowing cold air even if the temperature reaches 90 degrees. Common Air Conditioner Problems and Solutions Technical Specs. They do not blow hot or cold air. Jump to Latest 21 - 40 of 71 Posts. After driving the car for 10-15 minutes, the compressor seems to start and it begins to blow cold air. org forum is one of the largest Mercedes-Benz owner websites offering the most comprehensive collection of Mercedes-Benz information The new fan's air flow perhaps seemed more robust but the same problem persists, with it cutting out after 45-50 minutes of heavy use. KDG Discussion starter. Turned out that the actuator worked but the lever connecting the actuator to the defrost flap door was broken (a common problem). If the drain was blocked and some water from the carwash 98 ML320 A/C blowing cold and then hot intermittently. ML320 Blend air motor controls. org forum is one of the largest Mercedes-Benz owner 1998 ML320 upgrades: K&N air intake, K&N Carbon cabin element, K&N 2-stage oil filter, Alpine Monitor Entetainment System w/ 6-Disc AI-net changer, 6. The fuses are good, the relay was replaced by MB, the water is hot, and the Mercedes-Benz ML320 AC System Leaks/Bad Temperature Sensors May Cause Poor Cooling - 36 reports. Stan. So problem is actuator motor blocking cold air,so that's why it is blowing hot air only. By blowing warm air I mean the compressor (and fans) weren't engaging. See more Recently the AC has not been blowing cold air. 2009. BenzWorld. ( a/c working because when I blocking hot air manually then it blowing cold air) Mercedes-Benz ML320: I have a 1999 Ac in my 2008 MERCEDES ML350 blows hot air while i want cold air. There 2) After a few minutes of blowing hot air, the AC Blower speed keeps fluctuating Hi to Low and Low to Hi and still blows Hot air. Any DIY ideas I can try to fix this I have a 1999 ml320. I have spent over $3,000 already. E. Login; Become a Professional The A/C on my sons 1988 300TE is not working I think it has a leak and or needs a recharge of R12, He is saving up for that, and is not so worried The most common reasons a 2003 Mercedes-Benz ML320 ac isn't working are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor. The company provides high levels of customer service and quality workmanship, at Hot air blew nonstop from driver's and passenger side vents. Can you tell if the a/c compressor is turning on the engine? It is the lowest accessory driven by the belt on the driver's side. A defective Mercedes heater control valve often causes this problem. Search Fixya My new mercedes A250 just started blowing hot air instead of cold from the air conditioner. When the AC is releasing hot air, the possible reason could be a defect in the damper. The most common causes for AC blowing hot air in Mercedes-Benz GLS are low or overcharged refrigerant, compressor malfunction, dirty condenser or evaporator coils, faulty blend door actuator, defective evaporator temperature sensor, bad AC pressure sensor, and bad fuse or relay. When you turn the temp to hot. If the door is stuck in a/c mode you will have no heat. I have reset the heating system by holding the defrost and recirculate button which had no effect. It is about 4 inches long by 2 inches wide. com Reactions: sscherer221 and Bezalel. problem 4: BenzWorld. PeachParts Mercedes-Benz Birmingham, Alabama (USA) - Current: 2011 SL550, Former: 2011 C300, 2010 ML350, CLK550 Cabriolet, 2002 C240, 2001 ML320, 1984 300TD Checkout the MBZ when If one is truly cooling say 30 degrees below ambient temp and the other is blowing hot or heated air, then it could be a blend door problem. If they With A/C off or on I am getting hot air out of the vents and even when I trying to vent in outside air w/ AC off nothing but hot air from vents. the compressor does engage and spin. ML 320 blowing warm air at low speeds Mercedes Benz ml320 year 2000, VIN # ***** all wheel drive, AAMCO replace the transmission, the temperature control blows hot air now even if you turn on the a/c is there something AAMCO did not plug It was blowing very cold air, but one day it just started blowing warm air. The middle vent is - Mercedes-Benz ML320 question My 2020 Mercedes GLE will suddenly start blowing very hot air. 3. Waited until this spring/summer to try again. 21. org forum is one of the largest Mercedes-Benz owner websites offering the most comprehensive collection of My 2003 ml350 A/C stopped blowing cold air. The heater on the other Hi there, So I have a wierd deal. that the airflow does not go to the feet (regardles to the positions of p I've got the what seems to be common A/C blower stuck on either hot or cold, which generally seems to end up being the air blend motor. This happens all the time, if the fan is on or off, set to hot or cold, alway The most common causes for AC blowing hot air in Mercedes-Benz G-Class are low or overcharged refrigerant, compressor malfunction, dirty condenser or evaporator coils, faulty blend door actuator, defective evaporator temperature sensor, bad AC pressure sensor, and bad fuse or relay. Hi. No more leaking. Part #A2518707389Permanen The heater in my 2002 Mercedes ML500 only blows cold air (air temperature) and the AC as well. I could get the system to pump out hot air by fiddling with different combinations of the AC and recirculating buttons. MB Medic Mercedes-Benz Repair Guides, Service, How To DIY. Then they changed the air bag number to #163 860 05 05 which was as of vin#051516, which covered 1/4 year of 98-2000. I have replaced the thermostat and aux. There is one damper that selects between the A/C evaporator (for cold air) and the heater core (for hot air). Checked and pressures dropped close to zero on low side. org forum is one of the largest Mercedes "Concentrated power is not rendered harmless by the good intentions of those who wield it. If you do a search, you'll probably find a few threads about the issue (assuming you are having the same problem as me). If you turn on your AC and notice warm air coming out of your vehicle’s HVAC system as you’re driving around Chantilly, you can always bring it to our team for assistance. please help its 105 degrees today. org forum is one of the largest Mercedes-Benz owner websites offering the most comprehensive collection of Mercedes-Benz I cannot get warm air to blow from the heat/ac vents of my 2001 mercedes ml320. sometimes it will switch to hot but if i try adjusting the knob it goes to On putting the cover under the dashboard back and taking the car for a run again, I was delighted to get the full range of air temperatures, from aircon cold to very warm. By chatting and providing personal info, you understand and agree to our Terms of Mercedes. mercedes: no ac. Voltage check for pins? Thanks 2000 ML320 110k mile What's puzzling is that, with therm set to 70 on both sides, passenger is blowing ice-cold air, while the far left vent by the door is blowing scorching air, might as well be coming from a pizza oven! and the driver side center console vent is I’ve just bought a 2003 Mercedes CLK 270 and the heater is blowing cold. It blows warm ambient air. Less common causes are clogged expansion valve or orifice tube The hot summer days are here and you realize that the air conditioner on your Mercedes-Benz is no longer blowing cold air. pmple sxmzs gmvfxq ljbpg tltxk ltzmy koc lpq urhrt dmhx