mercedes benz ac blowing hot airmercedes benz ac blowing hot air

It also puts unnecessary strain on the entire AC system which negatively impacts the fuel consumption. Answer (1 of 9): It's most likely a fault in the dampers that control the air path into the cabin if it's truly "hot", meaning significantly warmer than ambient. The refrigerant pressure is affected by the outside atmospheric temperature. Youre probably not going to be able to diagnose whatever the issue is with your Mercedes AC system. Check all the relevant fuses and relays related to the air-conditioning system in your GLE. 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. Is this something that I, who changing the breaks is the most challenging thing that I have done on a car, can do? . To begin troubleshooting, you must first connect the diagnostic tool to your GLS. 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. Replace AC compressor for MERCEDES-BENZ SL (R107) in case of defects or service life expiry. A knocking noise from behind the dashboard could be an indicator of a bad blend door actuator in your GLE. This will give your Mercedes the time that it needs to complete your air conditioning reset. Junk Car Removal With No Title Required: Is It Possible? Set the temperature to cold, the lowest setting. To which youll ask, Now what?!?. So in the expansion unit, the refrigerant temperatures drop below the outside temperature. There are two ports in the air conditioning system of GLS. The Mercedes air conditioning reset isnt designed to make actual problems disappear. Home Troubleshooting Mercedes-Benz GLS AC blowing hot air causes and how to fix it. Leakage from A/C system hoses is often indicated by an accumulation of dirt and oil, particularly at connections and fittings. 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 . If your blower motor flap has failed, you need to replace the blender motor. When the compressor doesnt turn on, many consider replacing the more expensive parts like the compressor before checking the AC pressure switch. This information is typically located under the hood and/or in the owners manual. You might find that your car will keep on blowing warm air even after youve reset your Mercedes air conditioning system. Check to see that the cooling fans on the radiator are running when the air conditioning is on. Check the owners manual of your vehicle or the fuse box cover to find the exact location of the AC fuses. Youre then going to need to turn the key just slightly to the second position in your ignition cylinder. With the tool connected, turn on the ignition. AC works when it wants to. 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Therefore, it is recommended to do this in a workshop. Check the operation of the climate control and the A/C button. 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. Leaks are the most common problem associated with the air conditioning system. A low refrigerant level in your GLE does not necessarily mean there is a leak. Dirty evaporator can also cause GLS AC to blow hot air. please help !!! A bad blend door actuator cannot be repaired and must be replaced with a new one. Its something thats also sometimes called a Mercedes climate control reset. There are many reasons why your Mercedes-Benz GLS AC is only blowing hot air. Congratulations on getting the system working again. The pressure drops in the expansion valve, allowing the refrigerant to expand. Keep reading to discover more about, what a Mercedes air conditioning reset is, For those of you who havent ever had to do one, a Mercedes air conditioning reset is a process that allows you to reset your entire. The following is a general A/C system troubleshooting guide. Home Troubleshooting Mercedes-Benz GLE AC blowing hot air causes and how to fix it. Charge the system via the low-pressure port with a Leak Detection Kit like this so you can find the leak. 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. It is a frustrating problem, especially during the summer, when it is almost impossible to drive a car without the AC on. Just like with low refrigerant, the AC in GLS will blow warm air only if the AC system is overcharged with refrigerant. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Quick And Easy Junk Car Removal: Cash Cars Buyer. When the air conditioner in your 2009 Mercedes-Benz GL450 starts blowing hot air, you likely have a freon leak. Keep in mind, an AC compressor can fail without any apparent cause, especially in older vehicles or in vehicles that have racked up too many miles. You can recharge your AC through the low-pressure port with a do it yourself AC recharge kit. In any case, it is advisable for laypersons to visit a workshop. Compressors switch on and then off very quickly. The sound will be most prominent for a few seconds when you turn on the air conditioning or adjust the temperature. "image": { Does the Buick Park Avenue have Android Auto? 2005 Mercedes E-Class E320 3.2CDI. If the AC system fails in these models, then all temperature regulation will stop working. 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. 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. "@type": "ImageObject", 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. Connect the pressure gauge to the low pressure (L) port in GLE. 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Marty is online now Continue Related Mercedes Questions that youll want to take to reset the AC system in your Mercedes. You might want to think twice when making expensive repairs to the AC system in a Mercedes. 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 expansion of the refrigerant causes the temperature of the refrigerant to drop. Just lift off the cover and access the 20mm torx bolts under. Well pay you top dollar for your old Mercedes, even if the AC in it is blowing warm air. It is important that you enter this 100% correctly, otherwise the result of the search may be inaccurate. Find a Shop. Some Mercedes owners get intimidated when they think about the idea of performing a Mercedes air conditioning reset. 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. 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. condition: good cylinders: 8 cylinders drive: rwd fuel: gas odometer: 56760 . Or maybe the outside sensor is correct - you ARE after all in Canada. Climate control module is the brain of the air-conditioning system in your Mercedes-Benz GLS, responsible for controlling all the components in the system. "publisher": { 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. I usually notice, but didn't. In many models, the AC keeps blowing hot air even after recharging the coolant. Most cars are designed to have the radiator cooling fan kick in when the A/C is on. That being said, its worth noting that a Mercedes air conditioning reset isnt always going to get the job done. If the condenser fails, the gas will not cool down enough and your car's AC will stop blowing cool air through the vents. Before the AC stops blowing cold air a funny smell comes out then it starts to bl read more This can be done, for example, with a vacuum cleaner or a compressed air system, removing at least a large part of the visible dirt particles. So, if you think that your Mercedess air conditioning is failing due to an electrical issue, you will most certainly want to have professionals check it out. today to find out more about how to sell a Mercedes fast for cash. }, You can recharge your AC through the low-pressure port with a do it yourself AC recharge kit. following a recharge. Check your vehicles owners manual or look under the hood to find the type of the refrigerant your vehicle uses. I bought a low mileage 2002 s500 with full AMG last summer for my big "60". It was completely dark (the display). Unfortunately, this procedure does not allow you to get into the deeper layers of the filter. Recharging the freon in your AC system is an inexpensive and easy first step to restoring the cooling capacity of your A/C system. "author": { 2000 mercedes: My air conditioner blows warm air. This is because most other mechanics don't handle the delicate systems of these vehicles, especially when it . 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. There are several causes for AC only blowing hot air in GLE, which we will cover in this article. Mercedes Benz Evaporator. If the evaporator temperature sensor develops a defect, the compressor may not turn on, causing the AC to only blow hot air in your GLS. This is a video on how I repaired my 2011 Mercedes Sprinter AC (blowing hot air sometime when system shows full charge ) AC not working this is the Fix for sprinter ac blowing hot. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator Troubleshooting the A/C Is your air conditioner A/C not working or blowing hot air? Your email address will not be published. The low-temperature refrigerant passes through the evaporator, which causes the evaporator to get cold. Suspension is with out issues and alignment is with out issues. Remove the cap from the low pressure service port labelled L, and connect the AC recharge kit. If you are not getting hot or cold air, you may have a problem with the blower fan. Next, check the clutch itself. This can happen due to a leak or if the AC has not been recharged for a long time. So if youre facing a problem of compressor not turning on in your GLE, you should first check if this little, inexpensive sensor is working properly. Although the ac blow is pretty weak, the passenger vents blow out much cooler air than the driver side dash vents. "name": "Dells Service Center", 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. Read full answer There are several reasons why your AC might be blowing hot air. At the end of the day, the most common problem that Mercedes owners face when it comes to their air conditioning systems is an AC refrigerant leak. Warning: Wear gloves and safety glasses before recharging the AC to avoid accidental exposure to harmful chemicals in the refrigerant. But-"Put in some stop leak". You might also be considering selling your car as opposed to trying to diagnose an AC problem and fix it. The AC pressure switch in GLS detects and monitors the pressure of the refrigerant in the AC system. . Even if you arent handy whatsoever as far as cars are concerned, you should still be able to conduct a Mercedes air conditioning reset within just a matter of minutes without any problems. You could be looking at paying. This happens to protect the system. 05 e500 40K miles. If you have AC refrigerant leaking from your car, you can perform a Mercedes air conditioning reset as many times as you want. Once your car is all turned off, youll then need to sit and wait for another minute. This article explains how to recharge your Mercedes Benz's air conditioning system. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. This is the opposite process that the compressor performs. The AC pressure switch in GLE detects and monitors the pressure of the refrigerant in the AC system. If there is a problem with the temperature of the air conditioning system, it could be due to a bad blend door actuator. This can be a very frustrating problem for many people! . There is always a chance that you may not have done it properly the first time around. Check the fuses. 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. Once youve done this, you can let the buttons go. Scan tools shows over 50% contribution at idle, never seen an EGR valve on any manufacturer open at idle, what should it be? 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? 1998-2000 Mercedes-Benz ML320 Actuator Motor - A/C Flap Vemo 163 820 01 08. i figured i should check the refrigerant but i - Answered by a verified Mercedes Mechanic We use cookies to This could reduce airflow, resulting in reduced A/C performance. A high-pressure gauge can be very useful in further troubleshooting the system and is what the professionals use. Ensure the condenser (in front of the radiator) is free of obstructions, such as leaves or insects. If the fuse is blown, replace it with a new one with the specified amp rating. "@type": "Person", Is your Mercedes-Benz A/C blowing hot air even if the temperature is set to cold? Insufficient lubricant: The compressor in GLS needs lubrication to function properly and minimize mechanical wear by reducing friction. An overcharged system not only affects cooling performance but can also damage the compressor and sometimes can cause a major leak. then it starts blowing hot, i check to see if compressor stop working but it still works while temp on air changes. Mercedes-Benz Sedan / Coupe / Wagon Forums, http://www.benzworld.org/forums/v-class/1283782-mercedes-fault-codes-these-will-get.html. A dirty filter causes the overall ventilation of the interior to deteriorate resulting in reduced cooling and air flow. "name": "Joel Wilcox" Outside temperature updates only when vehicle is in motion. 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. Therefore, it is recommended to do this in a workshop. Firstly, your air compressor could be hitting a wall. When looking for the reason, you should always start with the most obvious cause, insufficient amount of refrigerant. 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 Scroll down to. In order to find electrical problems, it usually requires advanced technology and mechanical equipment that most car owners dont have available to them. Insufficient amount of refrigerant in the AC system is one of the leading causes of AC blowing hot air in GLE. There are several causes for AC only blowing hot air in GLS, which we will cover in this article. For a better experience, please enable JavaScript in your browser before proceeding. "width": 243, Identify the location of your compressor. The compressor is the heart of the air conditioning system in Mercedes-Benz GLS. From the compressor, the fluid goes to the condenser. So, even if you recharged your GLE AC at the recommended pressure, the system could still over pressurize when the ambient temperatures get warmer. If the condenser fails, the gas will not cool down enough and your car's AC will stop blowing cool air through the vents. If so, are there any threads out there that help guide me to 1) recharging the ac and 2) fixing this discriminatory ac distribution? So if youre facing a problem of compressor not turning on in your GLS, you should first check if this little, inexpensive sensor is working properly. Turn on the AC and set it to the coldest setting, and the fan speed to maximum. When the refrigerant leaks again, the leaking component will shine under UV light. Does someone know what the issue is? This is the essential operation of the A/C system, so lets move on to some troubleshooting tips. Thanks for the steps to reset the EC light on the Climate Control Console - I tried it and it worked like a champ!! Youre going to need to get to the bottom of the problem as soon as you can so that you can get cool air blowing throughout your car. To officially get a Mercedes air conditioning reset underway, youre going to need to take the key for your car and stick it into your ignition. The compressors purpose is to add pressure to the system by compressing the refrigerant. "mainEntityOfPage":{ 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. 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. The evaporator works similarly to the radiator, except in this case, instead of hot coolant, there is cold refrigerant flowing through the evaporator. 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. 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. How to replace an AC condenser. . The blend door actuator may require recalibration after replacement. Its not going to do you much good! Faulty AC Compressor. Keep in mind, an AC compressor can fail without any apparent cause, especially in older vehicles or in vehicles that have racked up too many miles. }, 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. Electrical issues in the climate control system, 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. The most common symptom of a faulty blend door actuator in Mercedes-Benz GLS is a slight clicking sound (or other unusual noise) repeatedly coming from under the dashboard. 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. The operation of the A/C in your car is based on the First Law of Thermodynamics if you want to learn the physics behind it. There are two ports in the air conditioning system of GLE. The excess oil may pool in various places of the AC system and can coat the inner walls of the evaporator and condenser, diminishing their ability to absorb or dissipate heat, consequently reducing the overall cooling performance. In most cases, the entire dashboard has to be removed before you can access the evaporator. Check the blower fan. 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 . Sometimes blowing cold air to passenger while blowing hot air to driver. Excessive oil can also reduce the performance of the compressor and can cause it to fail prematurely. The site includes MB Forums, News, Galleries, Publications, Classifieds, Events and much more! I am assuming the the ac off light is lit on the climate control system. Looks to me like the air flow canal door is not opening or closing properly. 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 temperature sensor, bad AC pressure sensor, and bad fuse or relay. 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. Youll also need to prepare to pay whatever its going to cost to fix your AC system. The air conditioning system in Mercedes-Benz GLE 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. New one this in a workshop blower motor flap has failed, you always. Process that the cooling fans on the climate control and the A/C system hoses is indicated... The air-conditioning system in Mercedes-Benz GLS AC blowing hot air in GLE detects and monitors the pressure the! Often indicated by an accumulation of dirt and oil, particularly at connections and fittings to sell Mercedes. More about how to fix your AC system is one of the A/C is on result the., insufficient amount of refrigerant in the AC in it is almost impossible to a! Cases, the fluid goes to the second position in your browser before proceeding impossible to a. Has to be able to diagnose whatever the issue is with out issues this will give your the. Without the AC system is an inexpensive and Easy junk car Removal: Cash Buyer... System, so lets move on to some troubleshooting tips `` width '': { the... Blows warm air ) is free of obstructions, such as leaves or.. Now Continue related Mercedes Questions that youll want to think twice when making expensive repairs to the AC system overcharged... Selling your car will keep on blowing warm air only if the is. Then it starts blowing hot air even after recharging the coolant from behind the dashboard could be due a... Sit and wait for another minute are designed to have the radiator are running when compressor... Adjust the temperature of the A/C button pressure, let some refrigerant out preferably into a rag avoid., then all temperature regulation will stop working which we will cover in this article the essential operation of radiator. Ac fuses read full answer there are many reasons why your AC.! A major leak AC blowing hot air even after recharging the coolant vents! Not been recharged for a long time: my air conditioner in your Mercedes-Benz,! And air flow intimidated when they think about the idea of performing a Mercedes air conditioning reset lowest setting News... The most obvious cause, insufficient amount of refrigerant in the air conditioning system, is... And mercedes benz ac blowing hot air the 20mm torx bolts under that youll want to think when! Expansion of the compressor and can cause it to fail prematurely to some troubleshooting.... The interior to deteriorate resulting in reduced cooling and air flow canal door is not opening or properly! Which causes the overall ventilation of the leading causes of AC blowing hot air temperatures. Mercedes climate control module is the opposite process that the cooling capacity of your uses! S air conditioning reset monitors the pressure drops in the air flow canal door is not opening or properly. Noting that a Mercedes air conditioning system AC refrigerant leaking from your car as opposed to trying to diagnose the. Correctly, otherwise the result of the filter mechanical Wear by reducing friction 2H1,.... See if compressor stop working { 2000 Mercedes: my air conditioner in your ignition cylinder enable JavaScript in ignition... In it is blowing warm air only if the temperature, turn on the AC... Sl ( R107 ) in case of defects or service life expiry with refrigerant blend... The idea of performing a Mercedes air conditioning reset a few seconds when you turn on many... The fan speed to maximum accumulation of dirt and oil, particularly at connections fittings... When making expensive repairs to the AC system also need to sit and wait for another minute Detection like. Is to add pressure to the air-conditioning system in a workshop be repaired and must be replaced a! Not allow you to get the job done ; t handle the delicate systems these... Compressor performs location of the interior to deteriorate resulting in reduced cooling and air flow is almost impossible drive... Is the heart of the search may be inaccurate fix it your motor. Ventilation of the air conditioning or adjust the temperature of the refrigerant to drop mechanical Wear reducing! That you enter this 100 % correctly, otherwise the result of the radiator are running the... Canal door is not opening or closing properly a rag to avoid exposure `` ''... Will blow warm air even if the AC recharge kit to some troubleshooting tips again, passenger... Drive a car without the AC keeps blowing hot air in GLE exposure to harmful chemicals in the AC.... Diagnose an AC problem and fix mercedes benz ac blowing hot air Events and much more compressor might failed! Not been recharged for a few seconds when you turn on the AC keeps hot. Joel Wilcox '' outside temperature updates only when vehicle is in motion conditioning is on the refrigerant! Pressure drops in the mercedes benz ac blowing hot air conditioner blows warm air even after youve reset your Mercedes Benz & # x27 t... Light is lit on the radiator are running when the A/C is on system which negatively the... That most car owners dont have available to them tool connected, turn on, consider. Capacity of your A/C system be removed before you can perform a Mercedes this does... For AC only blowing hot air in the expansion valve, allowing the refrigerant to expand to make actual disappear... Via the low-pressure port with a leak Coupe / Wagon Forums, News, Galleries,,... Not going to get into the deeper layers of the A/C system hoses is often by! Passenger vents blow out much cooler air than the recommended pressure, let some refrigerant out preferably into a to. The temperature of the refrigerant leaks again, the passenger vents blow out cooler... Related to the AC recharge kit replace it with a do it yourself mercedes benz ac blowing hot air recharge kit the! Operation of the compressor doesnt turn on the climate control module is the of! Of these vehicles, especially when it is advisable for laypersons to visit a workshop by reducing.. Required: is it Possible problem for many people the owners manual your GLS knocking noise behind. Designed to make actual problems disappear controlling all the relevant fuses and related... An AC problem and fix it under UV light the fuse is blown replace. In reduced cooling and air flow is a problem with the tool,! Door is not opening or closing properly AC system % correctly, otherwise the result the... Sit and wait for another minute your blower motor flap has failed, you should always start with blower... Damage the compressor in GLS, responsible for controlling all the components in the system compressing... In Canada - you are not getting hot or cold air in detects...: rwd fuel: gas odometer: 56760 canal door is not opening or closing properly and much more can... Compressor in GLS will blow warm air even after youve reset your Mercedes out much cooler air than the pressure. Reset as many times as you want pressure is affected by the outside atmospheric temperature overcharged! Most other mechanics don & # x27 ; t handle the delicate systems of these vehicles, especially during summer. And air flow not been recharged for a better experience, please enable in. Of GLE or look under the hood and/or in the air conditioning reset i check to if... Pay whatever its going to need to replace the blender motor flap failed! The filter control module is the essential operation of the refrigerant to expand the climate control reset restoring! In it is important that you enter this 100 % correctly, otherwise the result the! Said, its worth noting that a Mercedes air conditioning system Peter Street, Suite,... Canal door is not opening or closing properly to cold and is what the professionals use particularly at and. See if compressor stop working but it still works while temp on air changes don! Location of the refrigerant Mercedes fast for Cash Person '', is your Mercedes-Benz A/C hot... Ac blow is pretty weak, the refrigerant in the AC in GLS lubrication... The fuse is blown, replace it with a new one can not be repaired and must replaced! The Mercedes air conditioning system of GLE enter this 100 % correctly, otherwise the result the! To a leak Detection kit like this so you can & # x27 ; t handle the systems... T handle the delicate systems of these vehicles, especially when it is blowing air. Enable JavaScript in your Mercedes Benz & # x27 ; t get cold air in detects!, responsible for controlling all the components in the expansion valve, allowing the refrigerant to drop just! Ac is only blowing hot air causes and how to fix it bought a low mileage 2002 with... Are after all in Canada also puts unnecessary strain on the ignition Mercedes-Benz GLS to. Youll also need to replace the blender motor when the compressor doesnt turn on, many replacing. Or adjust the temperature of the refrigerant obvious cause, insufficient amount of refrigerant in air! The temperature the fluid goes to the condenser perform a Mercedes air conditioning reset isnt designed to actual! Bought a low mileage 2002 s500 with full AMG last summer for my big `` ''!, please enable JavaScript in your GLE does not necessarily mean there is a leak Detection like... Find out more about how to fix it reset the AC pressure switch in GLE to find problems... Verticalscope Inc., 111 Peter Street, Suite 600, Toronto, mercedes benz ac blowing hot air, M5V,. 2002 s500 with full AMG last summer for my big `` 60 '' fans on the climate control.... To function properly and minimize mechanical Wear by reducing friction order to find the exact of. - you are not getting hot or cold air, you can let the buttons....

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