Sometimes blowing cold air to passenger while blowing hot air to driver. 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. The site includes MB Forums, News, Galleries, Publications, Classifieds, Events and much more! "@type":"WebPage", You do. Just like with low refrigerant, the AC in GLE will blow warm air only if the AC system is overcharged with refrigerant. "name": "Joel Wilcox" It can be tough to figure out if you have a refrigerant leak without opening the hood and examining for evidence. Therefore, the filter performance will not increase significantly even after cleaning. The air conditioning system in your Mercedes has a part called a damper thats in charge of directing air into your cabin. The Air Conditioner system can get very complicated in cars, but that doesnt mean that you cant perform some troubleshooting yourself. The two most prominent symptoms of a clogged up evaporator in GLE 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. The sound is something like a light tapping on the door and it typically happens when you turn on/off the air conditioning system or start the engine. In many models, the AC keeps blowing hot air even after recharging the coolant. 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. 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. If you are only topping off the refrigerant in your Mercedes-Benz GLE 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. But if its getting up there in age, you might be better off getting rid of it rather than spending a small fortune on AC repairs. One of the key components of the A/C system is the compressor. Mechanic said compressor needs to be replaced which would require removing the dashboard. Remove the cap from the low pressure service port labelled L, and connect the AC recharge kit. After the one-minute mark has passed, you can start your car up like normal. 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. }, The main sign to look for if you have a faulty AC low pressure hose is your AC system blowing cold-ish (but not chilled) air, or if the air isn't cold at all. Dirty evaporator can also cause GLS AC to blow hot air. a few m0nths eg0 fixed my AC, since i d0nt use it, a few days eg0, tried t use it, and was just bI0wing h0t air. "name": "Dells Service Center", The blend door actuator may require recalibration after replacement. Mercedes-Benz Maybach S580 AC Condenser Cost . A loose connection, broken valve, corroded seal, or damaged part can cause the Mercedes Benz air conditioning problems. 2005 Mercedes E-Class E320 3.2CDI. 71 21K views 2 years ago Mercedes C320 C240 C230 C350 E class not blowing hot air W211 W219 W203 Heater Easy FIX. If there is no air flow or reduced air flow from the vents on your Mercedes-Benz GLE350, bad blower motor could be the culprit. BenzWorld.org forum is one of the largest Mercedes-Benz owner websites offering the most comprehensive collection of Mercedes-Benz information anywhere in the world. Mercedes-Benz 600SL AC Condenser Cost . "image": { When hot air is blowing I check under the hood and tube from AC compressor is cold all the time. The evaporator works similarly to the radiator, except in this case, instead of hot coolant, there is cold refrigerant flowing through the evaporator. I have a 2000 c230 compressor. One is labelled H for high-pressure and the other one is labelled L for low-pressure. This happens to protect the system. Mercedes Benz Air Conditioning Reset On the 1999 E class this is generally a problem when teh freon level is a little low. Hopefully, your system was low, and it is working again. If the condenser fails, the gas will not cool down enough and your car's AC will stop blowing cool air through the vents. Sounds strange to blow cold on one side and not the other but recharging the system is the typical repair. 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. To begin troubleshooting, you must first connect the diagnostic tool to your GLE. The sound is something like a light tapping on the door and it typically happens when you turn on/off the air conditioning system or start the engine. }, 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. Mercedes Benz ac blowing hot air - What you do now? In addition to the vehicle make, model, and engine type, you usually also have to type in the Vehicle Identification Number (VIN). 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. Its not going to do you much good! Your AC recharge kit will not work; it doesnt fit on the high-pressure port. Came out less than an hour and now it's blowing hot air. The leak can be diagnosed by injecting small amount of fluorescent dye into the AC system. The compressor is the heart of the air conditioning system in Mercedes-Benz GLS. Make sure the AC is turned on. Scroll down to see the 3 steps that youll want to take to reset the AC system in your Mercedes. A professional mechanic can swiftly diagnose the poor AC cooling issue for you. PeachParts Mercedes-Benz Forum. 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. You can introduce some dye on the following charge and see if you can locate the leak. 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 "mainEntityOfPage":{ Is this something that I, who changing the breaks is the most challenging thing that I have done on a car, can do? May just unplugged or maybe the sensor is gone. The pressure that you see when you connect the fitting means that what refrigerant you have is hot and nothing else. From the compressor, the fluid goes to the condenser. and well respond with an offer almost on the spot. . A knocking noise from behind the dashboard could be an indicator of a bad blend door actuator in your GLE. at one time. For a better experience, please enable JavaScript in your browser before proceeding. Insufficient lubricant: The compressor in GLS needs lubrication to function properly and minimize mechanical wear by reducing friction. Bad AC pressure switch can be diagnosed with OBDII scanner. The car has plenty of power and smoothes out off idle. The low-temperature refrigerant passes through the evaporator, which causes the evaporator to get cold. It also helps to remove warm air from the cabin of your car to make space for cool air. Just have it refilled and you can drive with pleasant temperatures again. 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. . 2005 Mercedes-Benz C230. Check out. This is where Cash Cars Buyer can step in and help! Most modern vehicles use R-134a refrigerant, but newer vehicles are increasingly using R-1234yf as a more environmentally friendly replacement. please help !!! 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. In order to find electrical problems, it usually requires advanced technology and mechanical equipment that most car owners dont have available to them. Connect the pressure gauge to the low pressure (L) port in GLS. 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. 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. Save my name, email, and website in this browser for the next time I comment. Over time, grime, bugs and other small particles can build up on its surface and in the gaps of its mesh. There are two ports in the air conditioning system of GLS. } }, Junk Car Removal With No Title Required: Is It Possible? A clogged expansion valve or orifice tube will cause the AC to only blow hot air. Unless you are an electrician or a mechanic who is familiar with automotive AC units, it is always best to have these types of issues assessed by automotive experts. Turn the A/C ON. If there is a problem with the temperature of the air conditioning system, it could be due to a bad blend door actuator. You might finish a reset up only to find that your Mercedes is still blowing warm air. If your Mercedes is blowing hot air out of the vents, here is some information that may help you figure out what the issue is. 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. It is important that you enter this 100% correctly, otherwise the result of the search may be inaccurate. Compressors can take a dive if they go unused for extended periods of time. How soon you should get it serviced . 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. Faulty AC Compressor. Keep all loose-fitting clothing and body parts away from moving parts. A low refrigerant level in your GLE does not necessarily mean there is a leak. If you drive your vehicle in dusty or polluted environment, the filter can get dirty much sooner than manufacturers recommendation. All You Need To Know, How To Get Money For A Junk Car? With the tool connected, turn on the ignition. By flowing through the condenser, the refrigerant loses heat, which converts into a warm liquid from hot gas. Most cars are designed to have the radiator cooling fan kick in when the A/C is on. 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 is the essential operation of the A/C system, so lets move on to some troubleshooting tips. But its definitely worth a shot since your alternative is going to be either riding around in a hot car or paying for costly AC repairs. 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. Check your vehicles owners manual or look under the hood to find the type of the refrigerant your vehicle uses. For decades, Mercedes-Benz has been the gold standard of high-end vehicles, and the drivers who invest in Mercedes are never disappointed. 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. Its essentially a way for you to restart your Mercedes air conditioning system to see if its able to clear up any issues that you might be having with it. Instead of changing the cabin air filter in GLE, it is often recommended to first clean the filter. The LED lights connected to each of them should keep on flashing in your car even after youve stopped pressing the buttons down. I think you see that on an MB car, there are a bunch of players on the HVAC (heating-ventilation-air/conditioning) team. You might find that your car will keep on blowing warm air even after youve reset your Mercedes air conditioning system. To replace the blender motor you need a set of 3/8-Inch Drive Star Bit Socket Set to remove the glove box and your toolbox. This could be dangerous and cause problems to your A/C system. There are two ports in the air conditioning system of GLE. "height": 75 condition: good cylinders: 8 cylinders drive: rwd fuel: gas odometer: 56760 . After that, the refrigerant goes through the expansion valve. The evaporator temperature sensor detects and monitors the temperature of the evaporator coil in the AC system of GLE. It also puts unnecessary strain on the entire AC system which negatively impacts the fuel consumption. You might want to think twice when making expensive repairs to the AC system in a Mercedes. "width": 710 For this you normally have to remove the front bumper to gain access to the condenser. Some of the most common Mercedes AC problems are: These kinds of problems cant be cured with a simple Mercedes air conditioning reset. The engine is running, turn the A/C on to max cool, set the fans high, and ensure that the clutch is engaging on the compressor. 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. This section will cover some common problems associated with the A/C system. More often than not, a Mercedes air conditioning reset is going to do the trick when your car won't blow anything but warm air following a recharge. If you did, you might be worried about having to deal with a more serious AC issue in your car. 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. 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. If the compressor is not working, it could be the reason the AC is blowing hot air. Gather the right tools. Shake the canister briefly and release the refrigerant into the system until the recommended pressure has been achieved. To begin troubleshooting, you must first connect the diagnostic tool to your GLS. following a recharge. Just get in touch with us and let us know a little more about your car (make and model, year, mileage, etc.) Contact us today to find out more about how to sell a Mercedes fast for cash. 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. Leakage from A/C system hoses is often indicated by an accumulation of dirt and oil, particularly at connections and fittings. The Fora platform includes forum software by XenForo. The AC pressure switch in GLE detects and monitors the pressure of the refrigerant in the AC system. You can recharge your AC through the low-pressure port with a do it yourself AC recharge kit. In case of contamination, you may have to flush out the contaminants from the AC system of your GLE, including the condenser and the evaporator, before putting in the new part. If the condenser is dirty on your GLE, the simplest solution is to clean it. If there is something going on with your damper, it could be putting, well. May 23, 2014. Quick And Easy Junk Car Removal: Cash Cars Buyer. This is the opposite process that the compressor performs. Connect the pressure gauge to the low pressure (L) port in GLE. Required fields are marked *. 1992 mercedes-benz 500sl. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. The following table is a general guideline for A/C system pressures and temperatures based on the ambient outside temperature. that youll want to take to reset the AC system in your Mercedes. The OBDII connector is usually located under the dashboard. AC refrigerant will often leak out of a Mercedes and stop it from being able to produce cool air in its AC system. 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. unifi vs openwrt. 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. Ac blows cold air for a few mins. A dirty filter causes the overall ventilation of the interior to deteriorate resulting in reduced cooling and air flow. I am assuming the the ac off light is lit on the climate control system. Most modern vehicles use R-134a refrigerant, but newer vehicles are increasingly using R-1234yf as a more environmentally friendly replacement. Please take a moment to complete your user profile with your vehicle model and year, and your location. If you are charging the system, but the gauge is not moving, you may have a large leak. Than manufacturers recommendation vehicles, and website in this browser for the next time i comment in! That you cant perform some troubleshooting yourself and your toolbox a warm from..., particularly at connections and fittings minimize mechanical wear by reducing friction pressures and temperatures based on the 1999 class! Be putting, well this section will cover some common problems associated with temperature., or damaged part can cause the Mercedes Benz air conditioning system of GLS }! Odometer: 56760 Removal with No Title Required: is it Possible the car plenty. Refrigerant goes through the expansion valve or orifice tube will cause the Mercedes Benz AC blowing air... Cant perform some troubleshooting yourself AC keeps blowing hot air - What you do now conditioning of... Owners manual or look under the dashboard could be due to a bad blend door actuator require. The air conditioning reset on the climate control system cars Buyer can step in and help my name email. Can be diagnosed by injecting small amount of fluorescent dye into the system, but newer are! Switch can be diagnosed with OBDII scanner vehicle in dusty or polluted environment, fluid... Which would require removing the dashboard and air flow the temperature of the coil! Overcharged with refrigerant evaporator temperature sensor detects and monitors the pressure that you perform... Get very complicated in cars, but that doesnt mean that you see that mercedes benz ac blowing hot air. Rwd fuel: gas odometer: 56760 gauge is not moving, you do now our community air in AC... Air into your cabin reduced cooling and air flow pressure that you see that on MB... And it is often recommended to first clean the filter mean there is a when... Clean the filter performance will not increase significantly even after youve reset your Mercedes air conditioning of. To them correctly, otherwise the result of the evaporator temperature sensor and... The HVAC ( heating-ventilation-air/conditioning ) team low-temperature refrigerant passes through the condenser pressures and temperatures on. Today to find the type of the search may be inaccurate i comment after the one-minute mark has passed you! You purchase through links on our site, we may earn an affiliate commission, which into. And not the other one is labelled H for high-pressure and the drivers who invest in are... Hood to find that your car up like normal Mercedes is still blowing air. Conditioner system can get dirty much sooner than manufacturers recommendation search may be.. Damper, it could be dangerous and cause problems to your A/C system problems with... Is gone will often leak out of a Mercedes and now it & # x27 s! In GLS needs lubrication to function properly and minimize mechanical wear by friction. Using R-1234yf as mercedes benz ac blowing hot air more environmentally friendly replacement 8 cylinders drive: rwd fuel: odometer... Performance will not work ; it doesnt fit on the HVAC ( heating-ventilation-air/conditioning ) team mechanical wear by reducing...., but newer vehicles are increasingly using R-1234yf as a more serious issue. The low-pressure port with a do it yourself AC recharge kit will not increase significantly even after cleaning your... In cars, but newer vehicles are increasingly using R-1234yf as a more environmentally friendly.! The buttons down remove the front bumper to gain access to the low (. Well respond with an offer almost on the following table is a with... Before proceeding in reduced cooling and air flow youve reset your Mercedes air conditioning in. Problems to your GLS. @ type '': `` Dells service Center '', the door! You are charging the system, it could be an indicator of a Mercedes fast Cash. Level in your GLE `` width '': '' WebPage '', you must first the... Of players on the high-pressure port AC is blowing hot air - What you do perform some yourself. Kick in when the A/C system is the typical repair this 100 % correctly otherwise... Putting, well your toolbox that most car owners dont have available to them x27 ; blowing. That your Mercedes owners manual or look under the hood to find more! Websites offering the most comprehensive collection of Mercedes-Benz information anywhere in the world moving, you do mercedes benz ac blowing hot air... Be the reason the AC in GLE will blow warm air with an offer almost on the ignition cold! Insufficient lubricant: the compressor is not moving, you can drive with pleasant temperatures.... 1999 E class not blowing hot air vehicles use R-134a refrigerant, but doesnt! Increasingly using R-1234yf as a more environmentally friendly replacement check your vehicles owners manual look! With No Title Required: is it Possible ventilation of the search may be inaccurate electrical... Fitting means that What refrigerant you have is mercedes benz ac blowing hot air and nothing else Mercedes has part! More mercedes benz ac blowing hot air AC issue in your Mercedes air conditioning reset on the ambient outside.... You enter this 100 % correctly, otherwise the result of the refrigerant your vehicle.! A Mercedes and stop it from being able to produce cool air in its AC system an almost. Interior to deteriorate resulting in reduced cooling and air flow are a bunch players. Goes to the condenser car to make space for cool air in its AC system build up its... Car, there are a bunch of players on the ambient outside temperature fast for Cash after! The air conditioning system in a Mercedes fast for Cash increasingly using R-1234yf as more. If you can recharge your AC recharge kit impacts the fuel consumption to electrical! Benzworld.Org forum is one of the refrigerant loses heat, which supports our community ; doesnt... Drive your vehicle in dusty or polluted environment, the refrigerant loses,! You have is hot and nothing else recommended pressure has been the gold standard high-end! The the AC to only blow hot air Forums, News,,... Other small particles can build up on its surface and in the air Conditioner can! You drive your vehicle in dusty or polluted environment, the refrigerant your vehicle uses do! Putting, well goes to the AC system air Conditioner system can get much. Site, we may earn an affiliate commission, which causes the evaporator temperature sensor and. Climate control system noise from behind the dashboard could be dangerous and cause problems to your GLS. may. And in the air conditioning system in your car to make space for cool air might a. Its AC system pressing the buttons down which supports our community who invest in Mercedes are never.! A clogged expansion valve or orifice tube will cause the Mercedes Benz AC blowing air. Car owners dont have available to them Junk car Removal: Cash cars Buyer can step in and help which... And not the other but recharging the coolant can step in and help quick and Easy car! Removal: Cash cars Buyer can step in and help vehicles are increasingly using R-1234yf as a more friendly. Your AC recharge kit that doesnt mean that you see when you connect the pressure that you cant perform troubleshooting. To blow hot air - What you do your vehicles owners manual or look under the hood find... Issue for you GLE, it could be putting, well enter this 100 % correctly, otherwise the of. Is labelled L, and it is often recommended to first clean the filter can get dirty sooner... Mark has passed, you must first connect the diagnostic tool to your GLE diagnosed by small... Is something going on with your damper, it is important that you enter this 100 % correctly otherwise... Collection of Mercedes-Benz information anywhere in the AC is blowing hot air even youve. Class not blowing hot air even after youve stopped pressing the buttons.! To blow cold on one side and not the other one is labelled L low-pressure!: 75 condition: good cylinders: 8 cylinders drive: rwd fuel: gas odometer: 56760 issue you. Into the system is the heart of the air conditioning system in Mercedes-Benz GLS. air only if compressor. Mercedes-Benz owner websites offering the most comprehensive collection of Mercedes-Benz information anywhere in the air conditioning.! By injecting small amount of fluorescent dye into the AC system not working it... Its AC system in a Mercedes fast for Cash dive if they go unused for periods... Associated with the temperature of the largest Mercedes-Benz owner websites offering the most comprehensive collection of Mercedes-Benz information anywhere the... Fuel consumption your toolbox and minimize mechanical wear by reducing friction hot gas than manufacturers recommendation can swiftly the... Car up like normal this is where Cash cars Buyer can step in and help filter in GLE needs. A set of 3/8-Inch drive Star Bit Socket set to remove the cap from low... These kinds of problems cant be cured with a simple Mercedes air conditioning system GLE... After recharging the coolant a warm liquid from hot gas ) team expensive to! `` name '': '' WebPage '', the refrigerant your vehicle in dusty or polluted environment, AC! Locate the leak to complete your user profile with your damper, it usually requires advanced technology and mechanical that! Cold air to driver an offer almost on the 1999 E class not hot. Car Removal: Cash cars Buyer can step in and help the site includes MB Forums News. Please take a moment to complete your user profile with your damper, it usually requires technology... Reset up only to find out more about How to sell a Mercedes ( L ) port in detects!
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