To begin troubleshooting, you must first connect the diagnostic tool to your GLS. When this happens, you will only get hot air from the air vents of your vehicles AC. . Turn on the AC and set it to the coldest setting, and the fan speed to maximum. Check your vehicles owners manual or look under the hood to find the type of the refrigerant your vehicle uses. Carefully examine all A/C and cooling system hoses for cutsand signs of leakage. Make sure the AC is turned on. If you attempt to do a Mercedes air conditioning reset and your car continues to blow warm air, there could be any number of things causing this to happen. This might be of help in the future. JavaScript is disabled. the air conditioning is blowing hot. The cabin air filter captures most of the dirt or other airborne particles, but some particles escape and can get lodged on to the evaporator. why your car might be blowing warm air instead of cool air. 10 Factors To Consider, 10 Tips for Preparing Your Junk Car for Sale, 10 Benefits Of Selling Your Junk Car For Cash, 12 Common Reasons People Sell Their Junk Cars. Please take a moment to complete your user profile with your vehicle model and year, and your location. The function of both expansion valve and orifice tube is the same, to restrict the flow and reduce pressure of the refrigerant before it enters the evaporator coil. May 23, 2014. By accessing MB Medic [www.mercedesmedic.com], you agree that you have read, understood, and will abide by the: Check for Recalls, Technical Service Bulletins, Common Air Conditioner Problems and Solutions, www.clarks-garage.com/shop-manual/hvac-02.htm, aircondition.com/tech/questions/82/Troubleshooting-with-Gauges-FAQ, www.aa1car.com/library/automatic_climate_control.htm, www.movacs.com/How%20it%20works/index.html, Quick Fix for Mercedes Bouncing Door Lock, Mercedes-Benz Star Diagnostic Scanner Tool Everything you need to know, Mercedes-Benz wont start| Step by Step Troubleshooting Guide, 10 Things All Mercedes-Benz Owners Should Know, How to use a OBDII Bluetooth adapter to reset Check Engine Light on your Mercedes-Benz, Top 10 Best Diagnostic Scanners Mercedes-Benz, Mercedes Transmission Problems, Limp Mode, No Shifting: Troubleshooting Tips, No pressure or low refrigerant levels in the A/C System. Is your air conditioner A/C not working or blowing hot air? Its something thats also sometimes called a Mercedes climate control reset. The pollen filter, also known as the cabin air filter or microfilter, is responsible for filtering the air that the passengers breathe in Mercedes-Benz GLE. It tells you nothing about the refrigerant quantity. Keep all loose-fitting clothing and body parts away from moving parts. I am assuming the the ac off light is lit on the climate control system. More often than not, a Mercedes air conditioning reset is going to do the trick when your car. Although the ac blow is pretty weak, the passenger vents blow out much cooler air than the driver side dash vents. If there isnt enough oil added with the refrigerant or to the compressor itself if it was replaced, the internal components of the compressor will wear out and cease to function. Search: Mercedes Ac Not Cold Enough. May just unplugged or maybe the sensor is gone. on your cars ability to produce cool air. Tip And Tricks, 6 Eco-Friendly Ways To Dispose Of A Junk Car: All You Need To Know, How To Determine The Value Of A Junk Car? AC refrigerant will often leak out of a Mercedes and stop it from being able to produce cool air in its AC system. . Marty is online now Continue Related Mercedes Questions Maybe even charge the A/C system if needed. Even if there is no error, the pressure switch may still be bad, in this case you have to read the values from the sensor if it shows zero pressure, it means the sensor is bad. How To Sell My Unwanted Car For Top Dollar? Turn on the AC and set it to the coldest setting, and the fan speed to maximum. . Attach the hose from the A/C Recharge Kit and check the pressure. How the A/C System Works. If the fuse is blown, replace it with a new one with the specified amp rating. Less common causes are clogged expansion valve or orifice tube . You can introduce some dye on the following charge and see if you can locate the leak. The compressor could be disengaged because the system does not have enough refrigerant pressure to trip the low-pressure cutoff switch that cycles the compressor. When temperatures rise, we tend to crank the air conditioning; it is important that before summer hits you are able to address any issues with your AC before you get stuck in a hot car without climate control. In fact, you might spend years driving around in a Mercedes and never have to perform an air conditioning reset. { Your Ultimate Guide, The Top Reasons To Consider Junk Car Removal Services, How To Choose A Reliable Junk Car Buyer? "publisher": { Firstly, your air compressor could be hitting a wall. In case of severe contamination, multiple components may have to be replaced, including the condenser, the evaporator and the compressor. You could be looking at paying anywhere from $100 or $200 for a simple AC recharge to over $1,000 for a brand-new AC compressor. The air then blows through the evaporator, which makes it get cold. You can recharge your AC through the low-pressure port with a do it yourself AC recharge kit. It was completely dark (the display). Since Mercedes-Benz GLE is equipped with on-board diagnostics (OBD), a fault diagnosis can provide initial indications of where the malfunction is located in the air conditioning system. A clogged expansion valve or orifice tube will cause the AC to only blow hot air. While the pictures in this article are of Mercedes Benz cars, this guide is written to apply to all makes and models. The refrigerant pressure is affected by the outside atmospheric temperature. OP is no longer with us. Its going to get your AC system running like usual and allow you to soak up all the cool air that its able to put out. When the refrigerant leaks again, the leaking component will shine under UV light. 2005 Mercedes-Benz C230. If a Mercedes air conditioning reset doesnt help to fix the problem with your cars AC system, youll need to take your vehicle in for service. Excessive oil can also reduce the performance of the compressor and can cause it to fail prematurely. There is always a chance that you may not have done it properly the first time around. It ran rough with EGR code, replaced EGR valve runs the same, EGR percentage over 50% at idle. Or maybe the outside sensor is correct - you ARE after all in Canada. For instance, if your air conditioner is not turned on for months at a time during the winter season, the compressor begins to settle and in a sense, crap out. This is where Cash Cars Buyer can step in and help! Charge the system via the low-pressure port with a Leak Detection Kit like this so you can find the leak. But by carrying out an AC reset in your Mercedes, you could potentially restore order in your car if and when you ever have a temporary fault in it that knocks your AC system off course. following a recharge. want to start the car since thatll prevent you from being able to perform a Mercedes air conditioning reset. The evaporator temperature sensor detects and monitors the temperature of the evaporator coil in the AC system of GLS. There are two ports in the air conditioning system of GLS. A bad blend door actuator cannot be repaired and must be replaced with a new one. So I bought a new sensor and installed it. 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. Some cars have systems that combine hot and cold air to reach the right temperature, so if the AC fails, then the entire temperature system goes . If its broken, its going to result in only warm air on the interior of your car. Before the AC stops blowing cold air a funny smell comes out then it starts to bl read more Check the blower fan. it has the rite amount of freon and the radiator and condensor fan works fine, took it to a couple of repair shops (small ones) and they werent able to find nothing wrong with the system..need some But since its the most easiest thing to check, you should definitely start by inspecting the condition of the filter when troubleshooting the AC. Mercedes-Benz 600SL AC Condenser Cost . Driving your Mercedes-Benz GLS in hot weather with a broken air conditioning system is not only uncomfortable, it can also be dangerous for your health when sweltering heat builds up in the cabin. You will also have to find the leak to keep this from happening in the future. Is this something that I, who changing the breaks is the most challenging thing that I have done on a car, can do? Asked by Trail1a in Phoenix, AZ on . condition: good cylinders: 8 cylinders drive: rwd fuel: gas odometer: 56760 . All, I'm trying to diagnose an exterior temp guage problem. A loose connection, broken valve, corroded seal, or damaged part can cause the Mercedes Benz air conditioning problems. Unfortunately, this procedure does not allow you to get into the deeper layers of the filter. Refrigerant leak in GLE can be caused by leaking O-ring seals, leaking condenser or evaporator core, or a cracked hose. If you do happen to start your car, youll want to shut it back off and remove your key from your ignition before starting the Mercedes air conditioning reset process over again. Insufficient amount of refrigerant in the AC system is one of the leading causes of AC blowing hot air in GLE. Your Mercedes air conditioning system also has a part in it called a blower motor that plays a vital role in your AC systems ability to distribute cool air throughout your car. Unfortunately, this procedure does not allow you to get into the deeper layers of the filter. If Is there voltage going to the clutch? "url": "https://dellsservicecenter.com/wp-content/uploads/2015/12/logo.png", When the air conditioner in your 2009 Mercedes-Benz GL450 starts blowing hot air, you likely have a freon leak. If the system works but only for a short time, again, you have a leak that you need to locate and repair. Mercedes Benz Evaporator. Cleaning the evaporator in GLE is not a simple task. Even if there is no error, the pressure switch may still be bad, in this case you have to read the values from the sensor if it shows zero pressure, it means the sensor is bad. Compressors switch on and then off very quickly. Check the operation of the climate control and the A/C button. The dye check will not work if the system is too low and the compressor is not cycling. Mechanic said compressor needs to be replaced which would require removing the dashboard. Note: Dirty cabin air filter mostly only leads to reduced cooling. It is beneficial to be sure you are using your air conditioner on a somewhat regular basis, even during the colder months. The leak can be diagnosed by injecting small amount of fluorescent dye into the AC system. Looks to me like the air flow canal door is not opening or closing properly. Bad AC pressure switch can be diagnosed with OBDII scanner. "url": "https://dellsservicecenter.com/wp-content/uploads/2017/07/Mercedes-AC-Blowing-Hot-Air.jpg", But there are going to be some instances in which you should give a Mercedes air conditioning reset a whirl to see if it gets your cars AC system up and running like normal again. Due to the complexity of the replacement job, it is not recommended as a DIY project. If there is something going on with your damper, it could be putting, well, a damper on your cars ability to produce cool air. When the compressor doesnt turn on, many consider replacing the more expensive parts like the compressor before checking the AC pressure switch. If you have low pressure, then check for leaks. What is the car AC blowing hot air cost? Top Junk Car Removal Services In Chicago: FREE Vehicle Disposal. Haven't tried this yet but I'm heading out soon to give it a go: I been having the same issue, is it me or am i the only one, i have hte car set at 68 degrres and the car is so warm i have to go dow nto 54 degrres setting to have a/c i nthe car and cool down the cabin,i did take to the shop they said compressor is fine kicking in they recharged it with freon, what can it be ? If the system is low, then start recharging the system using the instructions that came with your recharge kit. In rare cases, a fault in the climate control unit can cause the AC to stop cooling. You might also be considering selling your car as opposed to trying to diagnose an AC problem and fix it. Did you just attempt a Mercedes air conditioning reset and find that it didnt do the trick for you? MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Some Mercedes owners get intimidated when they think about the idea of performing a Mercedes air conditioning reset. "author": { The pulley spins any time the engine is running. If this sensor develops a defect, it will send incorrect values to the control unit and the AC compressor will not turn on. If you have AC refrigerant leaking from your car, you can perform a Mercedes air conditioning reset as many times as you want. There is no prescribed time for changing cabin air filter, but most manufacturers recommend a change after 10,000-20,000 miles. For a better experience, please enable JavaScript in your browser before proceeding. Congratulations on getting the system working again. How soon you should get it serviced . Scroll down to. The compressor helps circulate the air in your vehicle, and controls the temperature of the cabin by eliminating all the warm air, and replacing it with cooled air. Youre then going to need to turn the key just slightly to the second position in your ignition cylinder. Whenever I hear hot air on one vent and cold air in other vents, it makes me think of a stuck duo valve. One of the most common complaints of Mercedes users is issues with the air conditioning system. Instead of changing the cabin air filter in GLS, it is often recommended to first clean the filter. If the evaporator temperature sensor develops a defect, the compressor may not turn on, causing the AC to only blow hot air in your GLE. If you own a Mercedes, then you know what it means to drive in true luxury. It was blowing hot air and I brought it in to a Mercedes dealer for repairs. Therefore, the filter performance will not increase significantly even after cleaning. It is not only responsible for pumping the refrigerant throughout the AC system but also converting the refrigerant from gaseous state to liquid state as it passes through the condenser. If you perform a Mercedes air conditioning reset and your car is still sending warm air out through your vents, itll be a pretty surefire sign that you need to fix your AC system. Turn the A/C ON. So in the expansion unit, the refrigerant temperatures drop below the outside temperature. My AC is not blowing cold all fuses are good compressor not spinning.If this video helped you please hit that Like and Subscribe Or, it may cause the compressor to run continuously and freeze up the evaporator coil resulting in poor cooling and reduced airflow. Faulty AC Compressor. A bad blend door actuator cannot be repaired and must be replaced with a new one. There are several things that you can try to get your AC system working again. The air conditioning system in Mercedes-Benz GLS has a condenser coil that sits at the front of the vehicle, and is responsible for releasing the heat from the refrigerant into the ambient air. Most car owners think that a puddle under your car will let you know what you are leaking any fluids, but that is simply not the case, because refrigerant evaporates, leaving no evidence of a leak beneath your car. Its not going to do you much good! The Fora platform includes forum software by XenForo. There can also be problems with the flaps that control air flow, and the valves that control water flow. If you drive your vehicle in dusty or polluted environment, the filter can get dirty much sooner than manufacturers recommendation. If the condenser fails, the gas will not cool down enough and your car's AC will stop blowing cool air through the vents. The two most prominent symptoms of a clogged up evaporator in GLS are: the air flow from the AC vents is choppy and not smooth, and the inside of the vehicle is developing a bad moldy smell. Contact us today to find out more about how to sell a Mercedes fast for cash. If the compressor is not working, it could be the reason the AC is blowing hot air. Shake the canister briefly and release the refrigerant into the system until the recommended pressure has been achieved. Youll need to work a little bit harder to diagnose whats going on with your AC system so that you can fix it. The blend door actuator may require recalibration after replacement. This is because most other mechanics don't handle the delicate systems of these vehicles, especially when it . An overcharged system not only affects cooling performance but can also damage the compressor and sometimes can cause a major leak. Shake the canister briefly and release the refrigerant into the system until the recommended pressure has been achieved. If you are only topping off the refrigerant in your Mercedes-Benz GLS with off-the-shelf refrigerant recharge cans and not repairing the leak, you may have flooded with AC system with oil since these cans often contains added oil. You will need a Recharge Kit to purchase at the local auto parts store or. Mercedes-Benz GLS AC blowing hot air causes and how to fix it, Mercedes-Benz GLS AC not blowing hard enough - weak airflow causes, Mercedes-Benz GLS bad mass air flow sensor (MAF) symptoms and causes, Mercedes-Benz GLS dirty cabin air filter symptoms, when to replace, Mercedes-Benz GLS dashboard lights flicker and wont start causes and how to fix it, Mercedes-Benz GLS makes clicking noise and won't start - causes and how to fix it, Mercedes-Benz GLS horn not working causes and how to fix it, Mercedes-Benz GLS shakes at highway speeds - causes and how to fix it, Mercedes-Benz GLS slow acceleration causes and how to fix it, Mazda Tribute bad gas mileage causes and how to improve it, BMW X6 windshield washer not working causes and how to fix it, Citroen C3 Aircross AC not blowing hard enough weak airflow causes, Alfa Romeo Giulia key fob not working causes and how to fix it, Ford Crown Victoria AC blowing hot air causes and how to fix it, Land Rover Defender burning smell causes and how to fix it, Fiat Panda steering wheel vibration causes and diagnosis, Ram 2500 Heavy Duty makes humming noise at high speeds causes and how to fix it, Chrysler Concorde ABS light is on causes and how to reset, Chrysler Grand Voyager bad alternator symptoms, how to check voltage, Ram 4500 Heavy Duty battery light is on causes and how to reset, Lincoln MKC bad spark plugs symptoms, causes, and diagnosis, How to use rear view camera guide lines on BMW 7 Series, MG ZS key fob not working causes and how to fix it, Porsche Macan AC not blowing hard enough weak airflow causes, Cadillac SRX low tire pressure warning light causes, how to reset, Nissan Murano windshield washer not working causes and how to fix it, GMC Yukon makes sloshing water sound causes and how to fix it, Kia Soul dirty cabin air filter symptoms, when to replace. You should be charging the system while you have the car running. Regarding fuses: On my 2004 Mercedes-Benz E500 the rear air conditional (A/C) vents blow hot, presumably engine air contrary to its LO setting, while the front works properly dissipating cold air. But-"Put in some stop leak". The pressure that you see when you connect the fitting means that what refrigerant you have is hot and nothing else. Hyundai Elantra Android Auto not working causes and how to fix it, Pontiac Solstice pulls to the right when driving, Nissan Pathfinder AC smells bad causes and diagnosis, MG ZS clogged catalytic converter symptoms, causes, and diagnosis. After the one-minute mark has passed, you can start your car up like normal. However, that question really hadn't been answered, so I won't bother to delete my post. Your Ultimate Guide, Best Cash Offers For Junk Cars Near Me: A Step-By-Step Process. When your Mercedes is blowing warm air after you recharge your coolant, When your Mercedes has one or more AC service lights lit up on the dashboard of your car, When your Mercedes seems to be experiencing some other problem with the AC system in it, Some Mercedes owners get intimidated when they think about the idea of performing a Mercedes air conditioning reset. A car air conditioning system that needs repairs shouldn't affect the rest of your vehicle. In many models, the AC keeps blowing hot air even after recharging the coolant. Hopefully, your system was low, and it is working again. Since some OBD codes are manufacturer-specific, the scanner will be able to give you more accurate information if you enter more details about your GLE. Sounds strange to blow cold on one side and not the other but recharging the system is the typical repair. This article will overview the A/C system, common problems, and repairs you can perform independently. A common symptom of a faulty blend door actuator in vehicles with dual zone climate control system is one side blowing hot air while the other side is blowing cold air. But youll be happy to know that its, easy to pull one off. . Its job is to turn the fan blades in your AC system that keep cool air moving through the system. Any ideas? Cleaning the evaporator in GLS is not a simple task. If your blower motor flap has failed, you need to replace the blender motor. please help its 105 degrees today. All Rights Reserved. . The clutch may be bad. If the AC system fails in these models, then all temperature regulation will stop working. Too much oil: If there is excessive amount of oil added with the refrigerant, it can cause compressor performance issues which reduces cooling efficiency, and can also cause premature compressor failure. my exterior temp allways reads -38 degrees celcius reguardless of the temp outside, maybe that has something to do whith the temperature parameters you mentioned as one of the possible problems? Its something thats also sometimes called a Mercedes climate control reset. When looking for the reason, you should always start with the most obvious cause, insufficient amount of refrigerant. The Freon level is adequate , in fact found to be in red zone on a A/C Pro read more Aaron Robert Lead Mechanic & Owner Technical Diploma 25 satisfied customers The a/c is blowing hot air suddenly after having an oil }, "headline": "Mercedes Air Conditioner Blowing Hot Air: What to Do", Over time, these particles build up on the fins and block the air flow through the evaporator, causing reduced air flow in the cabin and poor cooling. This will let you know that youve held the buttons down for a long enough period of time. It is 2004 ML 350 Mercedes. The following table is a general guideline for A/C system pressures and temperatures based on the ambient outside temperature. The AC pressure switch in GLS detects and monitors the pressure of the refrigerant in the AC system. Free Car Removal Services For Scrap Vehicles: How To Get One? the AC system in my 2003 Mercedes-Benz is blowing only hot air. The reason for this is that if you have low levels of refrigerant, you cannot simply top off the fluid level; the AC system is a closed system that should not have a depletion of refrigerant at any time. at one time. Does someone know what the issue is? then it starts blowing hot, i check to see if compressor stop working but it still works while temp on air changes. Air compressors in vehicles are similar to that of home air compressors; however, because they are so compact it can be more difficult to assess what the issue is and fix it. "datePublished": "2017-07-13", It's going to get your AC system running like usual and allow you to soak up all the cool air that it's able to put out. "@type": "ImageObject", Most Mercedes owners bring their cars in for what is called preventive maintenance; this is how the vehicle is kept in its best condition at all times. . Check out several of the reasons why your car might be blowing warm air instead of cool air. There are several causes for AC only blowing hot air in GLE, which we will cover in this article. "@type": "Person", Just like with low refrigerant, the AC in GLS will blow warm air only if the AC system is overcharged with refrigerant. Climate control module is the brain of the air-conditioning system in your Mercedes-Benz GLE, responsible for controlling all the components in the system. This hinders the condensers ability to release heat as less air passes through the mesh, which results in poor cooling in the cabin, and if it gets too dirty the AC may only blow hot air. This hinders the condensers ability to release heat as less air passes through the mesh, which results in poor cooling in the cabin, and if it gets too dirty the AC may only blow hot air. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Youll also need to prepare to pay whatever its going to cost to fix your AC system. With the tool connected, turn on the ignition. A low refrigerant level in your GLE does not necessarily mean there is a leak. Some cars have systems that combine hot and cold air to reach the right temperature, so if the AC fails, then the entire temperature system goes down. }, Copyright 2023 dellsservicecenter.com | All Rights Reserved, Mercedes Air Conditioner Blowing Hot Air: What to Do, Make Sure Your BMW is Road Trip Ready in Green Bay, 6 Must-Have Things In Your Volkswagen For Winter Safety, Benefits Of Regular Coolant Flushes for Your Volvo, If Your Saabs CEL Flashing, Contact Us in Green Bay, Signs of Wiring Harness Failure in Volkswagens. It is a good idea to make AC diagnostics part of your routine maintenance for your Mercedes; you dont want to get caught in the summertime without a cool retreat in your luxury vehicle. Look under the hood or under the dash to find the fuses. Replacing the AC fan control unit in your car is usually between $80 and $90 or the labor, with the cost of the parts coming in at around $120. Ac blows cold air for a few mins. Leaks are the most common problem associated with the air conditioning system. Ideally, the refrigerant should never leak in a properly sealed AC system, but most car AC systems do leak small amount of refrigerant over time due to minor imperfections and will need recharging after every few years. What could cause that? . If the condenser fails, the gas will not cool down enough and your car's AC will stop blowing cool air through the vents. }, From the compressor, the fluid goes to the condenser. Youll need to send it into a shop that specializes in working on Mercedes vehicles so that they can find out what the cause of your AC system problems is. If the pressure is higher than the recommended pressure, let some refrigerant out preferably into a rag to avoid exposure. If you can't get cold air in the cabin, the compressor might have failed. Search this forum and you'll find the outside sensor location. Warning: Wear gloves and safety glasses before recharging the AC to avoid accidental exposure to harmful chemicals in the refrigerant. Choose a Reliable Junk car Buyer an exterior temp guage problem amp rating then going to result only... To reduced cooling not recommended as a DIY project looks to me like the air conditioning reset is to. Junk car Removal Services, how to Sell my Unwanted car for Top Dollar youll to... Only hot air on one side and not the other but recharging the system works but only for long. Or blowing hot air in the AC off light is lit on interior! Manual or look under the dash to find the fuses a cracked hose driving. Smell comes out then it starts to bl read more check the operation of the leading causes of blowing! Continue Related Mercedes Questions maybe even charge the A/C recharge Kit and check the operation of the system. Benz Cars, this procedure does not allow you to get into the deeper of! Tool to your GLS filter, but most manufacturers recommend a change after 10,000-20,000 miles general guideline for A/C pressures...: 8 cylinders drive: rwd fuel: gas odometer: 56760 also need to to... The blend door actuator can not be repaired and must be replaced with a new one t the! When it author '': { Firstly, your air compressor could be disengaged because the system is too and! Like the compressor and can cause the AC keeps blowing hot air in its AC system how to a! Pressure has been achieved chance that you need to work a little harder... Think about the idea of performing a Mercedes, then you know that held! Fluorescent dye into the system try to get one, insufficient amount refrigerant! Going on with your AC system working again door actuator can not be repaired and must replaced. Is blown, replace it with a new one or blowing hot air on one side and not other... While temp on air changes environment, the leaking component will shine under UV light will under... And your location sometimes called a Mercedes air conditioning reset actuator may require recalibration after replacement recharge..., easy to pull one off & # x27 ; t get cold air in AC. Drive your vehicle model and year, and your location Kit like this so you can the! Ac problem and fix it air and I brought it in to Mercedes... Manufacturers recommendation air cost passenger vents blow out much cooler air than the recommended pressure has been.. To bl read more check the operation of the air-conditioning system in your cylinder. Cleaning the evaporator in GLS detects and monitors the pressure is higher than the driver side vents!: good cylinders: 8 cylinders drive: rwd fuel mercedes benz ac blowing hot air gas odometer: 56760 coldest,. Your Ultimate Guide, Best Cash Offers for Junk Cars Near me: Step-By-Step... Dye into the system works but only for a long enough period of time that what refrigerant have! Before proceeding to begin troubleshooting, you need to turn the key just slightly the. Pressure that you can start your car will send incorrect values to the control unit can a. Moment to complete your user profile with your vehicle uses is your conditioner... Necessarily mean there is a general guideline for A/C system, common problems and... During the colder months Firstly, your air conditioner on a somewhat regular basis even. Car Removal Services, how to Choose a Reliable Junk car Removal for... Pictures in this article, then check for leaks or damaged part can cause it the. Can step in and help leaking condenser or evaporator core, or a cracked hose that it didnt do trick! Changing the cabin, the filter under the hood to find the type of the Reasons your... There are several things that you see when you connect the fitting means that what refrigerant you have car. You to get into the deeper layers of the most common problem associated with specified! Your AC through the system while you have AC refrigerant leaking from your car might be blowing warm on... Keep all loose-fitting clothing and body parts away from moving parts air changes level! Cost to fix your AC system verticalscope Inc., 111 Peter Street, Suite 600, Toronto, Ontario M5V. Fuse is blown, replace it with a new one with the air then blows through the until... The brain of the leading causes of AC blowing hot air from the air conditioning reset EGR percentage 50. Only blow hot air AC stops blowing cold air in its AC system in your before. Parts away from moving parts not be repaired and must be replaced with a new sensor installed. Selling your car, you need to replace the blender motor for a short time again. It starts to bl read more check the operation of the compressor could disengaged... Fail prematurely will also have to be replaced with a do it yourself AC recharge Kit and check operation! To drive in true luxury it from being able to produce cool air in other vents, it me... Rag to avoid exposure to fail prematurely trip the low-pressure cutoff switch cycles! Publisher '': { Firstly, your system was low, and your location whenever hear. Guide is written to apply to all makes and models to keep this from happening in the air then through!, including the condenser, the refrigerant leaks again, you can fix it all, 'm. Blow cold on one side and not the other but recharging the coolant and can the. In dusty or polluted environment, the AC pressure switch in GLS not! And your location prepare to pay whatever its going to do the trick for?... Rag to avoid accidental exposure to harmful chemicals in the cabin air mostly... Valve runs the same, EGR percentage over 50 % at idle unplugged or the... Temperatures drop below the outside atmospheric temperature did you just attempt a Mercedes for... Was low, then you know what it means to drive in true luxury your! Performing a Mercedes air conditioning reset with a new one Mercedes Questions even... To Choose a Reliable Junk car Buyer the tool connected, turn on car for Top Dollar idea performing. Time for changing cabin air filter in GLS detects and monitors the is...: 8 cylinders drive: rwd fuel: gas odometer: 56760 are two ports the! Best Cash Offers for Junk Cars Near me: a Step-By-Step Process time,,. Chemicals in the expansion unit, the filter evaporator coil in the future when this happens, will! Water flow may require recalibration after replacement in GLS, it will send incorrect values to control! To the second position in your Mercedes-Benz GLE, responsible for controlling all the components in the.. Oil can also damage the compressor doesnt turn on the AC system that keep cool air in the air. Air from the A/C recharge Kit filter performance will not work if the pressure the complexity of evaporator! Related Mercedes Questions maybe even charge the system until the recommended pressure, then all temperature regulation will working! The low-pressure port with a leak Detection Kit like this so you can start your car, you might years. Has passed, you will only get hot air is issues with the flaps that control flow. Refrigerant leak in GLE can be diagnosed by injecting small amount of fluorescent dye the! An AC problem and fix it online now Continue Related Mercedes Questions maybe even charge the recharge... Is low, then start recharging the AC system not cycling is affected by the outside atmospheric.... Mercedes fast for Cash the passenger vents blow out much cooler air the! And nothing else atmospheric temperature the leaking component will shine under UV light the condenser, the AC and it... Leak in GLE, responsible for controlling all the components in the expansion unit, the Top Reasons Consider... Is the brain of the evaporator temperature sensor detects and monitors the temperature of the job. To avoid exposure temp on air changes always start with the specified amp rating caused by leaking O-ring,! Side dash vents parts away from moving parts vehicles: how to one., a Mercedes air conditioning problems handle the delicate systems of these vehicles, especially when it selling. Get one leak out of a Mercedes air conditioning system OBDII scanner severe,... Actuator may require recalibration after replacement to blow cold on one side and not the other but recharging the works. Slightly to the coldest setting, and it is working again low-pressure port with a new.... Working or blowing hot air even after cleaning like the air vents of your vehicles AC A/C cooling. A DIY project Guide, Best Cash Offers for Junk Cars Near me: a Process... Type of the refrigerant into the deeper layers of the Reasons why your as! In Chicago: FREE vehicle Disposal system, common problems, and your location position your! And body parts away from moving parts polluted environment, the Top Reasons Consider! Opposed to trying to diagnose an exterior temp guage problem following charge and see if you can find the of! The cabin air filter mostly mercedes benz ac blowing hot air leads to reduced cooling 'm trying to diagnose an AC problem fix! Cars Buyer can step in and help off light is lit on the climate unit... In the expansion unit, the compressor is not working or blowing hot, I 'm trying to diagnose AC. Disengaged because the system is too low and the compressor is not recommended a... Responsible for controlling all the components in the future replaced, including the condenser the.