ML350 W276 Engine Coolant Temp Sensor I have a 2014 ML350 with a w276 engine and I cannot seem to locate the Coolant Temperature Sensor. Joel was very professional and very detail on the issue I had with my vehicle. You may need to remove the sensors and clean them off. The cooling system thermostat in the engine begins to open at 88 to 92 degrees Celsius, 95 degrees should be normal operating temperature. 2002-2008 G500 Over recent months I've been getting the coolant level low warning light coming on intermittently. Modern automotive diesels engines should ideally run circa 90C to obtain optimum efficiency. You may need a new thermostat, a coolant system flush, or simply a system burping, but since this is a change in its operating temperature you should get this diagnosed and corrected. There are a couple possibilities. 2001-2002 S55 AMG Mercedes-Benz C280 203.0922006-2007 2014 Mercedes glk 350 coolants temperature sensor. . The thermostat can fail in open or closed positions. For a better experience, please enable JavaScript in your browser before proceeding. It may not display this or other websites correctly. 0 helpful. The car did do a regen a few weeks ago - and got up to 80 in traffic on Friday, but we will get it checked by Mr Garrlick shortly Well, we had a new thermostat fitted in January. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. In this case, the pressure in the cooling system can reach 3 atmospheres. When a gasket blows and coolant seeps in, the issue is not only that the engine will overheat, but also that damage may be done to the catalytic converter and oxygen sensors due to contamination from the coolant. 1998-2004 E320 All-New 2024 Buick Envista Arrives This Summer; Price Starts at $23,500. The cooling system thermostat in the engine begins to open at 88 to 92 degrees Celsius, 95 degrees should be normal operating temperature. Common signs include engine surging, low battery voltage, and an illuminated Battery Light. In some vehicles, the needle may never reach the middle of the gauge, so dont be alarmed if it stops short of the midpoint. Normal coolant temperature varies from car to car. I'd have thought this would be up around 85 to 90 degrees. 1998-2000 C43 AMG Deteriorating Hose: Your radiator hoses are responsible for transporting coolant to and from the radiator. Those selling prices were ML's purchased from hi-volume metro/near-metro dealers on in-stock ML's at end-of-month Nov or Dec. Dealer margin above invoice is 6%, and about 5% back-end profit depending on dealer target sales performance - but in peak-season Nov and Dec MB was adding marketing dollars $2K-$4K, in essence rebates back to the dealer. Everything was good according to the mechanic. On average, the cost for a Mercedes-Benz ML350 Temperature Warning Light is on Inspection is $95 with $0 for parts and $95 for labor. Mercedes-Benz C350 204.0562006-2011 You must log in or register to reply here. :-(. Got hung up in traffic, temp went to about 195 - 200 and engine died. The most common causes of P0128 include: Low coolant level (an air pocket trapped at the engine coolant sensor) The engine coolant thermostat is stuck in an open position or is opening too soon. Need a fuse . Vehicle swings but wont Start, thank you for taking the time to put this information out have a good day. Instead, there are typically markings for cold and hot on the edges of the gauge and a normal range in the middle. If the thermostat fails in the open position, it prevents the coolant from reaching normal operating temperature resulting in an engine that does not warm up properly and an engine warning light illuminating. You should not come close to this in Winter. I had the thermostat changed on EmilysMum's Citron C3 the other day. 2002-2004 SLK32 AMG The coolant temperature warning light turns on when your engine is sensed to be too hot and is at risk of damage from overheating. Instead, they have a warning light that (usually) glows blue when the engine is cold one way of telling you that turning on the heater will generate cold or cool air. Keeping the gauge at center during normal operation does not distract the driver like an accurate gauge would. When I turn it on it obviously starts at 40 but within seconds it goes up to 60 then climbs up quick to almost the 100 mark and thats just within less than 10 minutes. With the ducts off remove the front engine cover. This acts as a high speed option for the fan, and when engaged, it draws more air across the radiator. I actually think that it had been misbehaving for most of the last year as the temperature gauge is now totally stable, which it never was before. The service manual indicates the engines thermostat should begin to open at between 88 and 92 degrees Celsius, the normal operating temperature should be 90 to 95 C. The gauge does appear to be high but is normal. Damaged Radiator Cap: Most modern radiator caps are pressure caps. $533. But it never went down when the mechanic did the service on it. Mercedes Applications: A Mercedes Benz Ml350 Engine Coolant Temperature Sensor Replacement costs between $474 and $570 on average. Getting a low coolant temp code.temp is normal. The Fora platform includes forum software by XenForo. On average, the cost for a Mercedes-Benz ML350 Temperature Warning Light is on Inspection is $95 with $0 for parts and $95 for labor. But at no time did the engine coolant temperature gauge get over 60 degrees. A defective engine coolant temp sensor can cause the P0117 code. If youre stuck in traffic on a hot day, this would be normal. It looks a fairly simple job to replace as it's on top of the engine, or get your nearest indy to do it. You can pull off the road for a while or turn off the A/C and turn on the heater to try to cool things off. 2006-2007 R500 The outside temperature ranged from 4 degrees in the morning to 8 degrees late afternoon. Is it 95C (which is perfectly normal) or 105C (248F)? Your coolant system is designed to help remove heat from the engine during operation. If your cap is failing (the seal is generally the problem), then you can expect to see higher than usual engine temperatures. If this is broken or missing then the air can pass underneath the vehicle but not also through the radiator, which will cause overheating. I hear gentle "ta ta ta.." sound randomly, special when I start and stop the engine. But they are located on the left side of the engine , closed to the oil filter. is between. . At idle observe the dash engine temperature and fan. Without coolant, the engine would quickly ruin itself with its own heat production. When the temperature warning light illuminates, the first thing to check is this gauge, to determine the severity of the overheating issue. When the coolant temperature sensor notices that the coolant temperature is getting too high, the engine control unit (on newer vehicles) will initiate the cooling fan to reduce the temperature. 95? 2000-2006 S500 I've had 2 washer pumps fail over 10 years and it's not a job I enjoy! If your coolant level is low, there is a chance it is pushing air into the cooling system, and the coolant temperature sensor will not read the coolant temperature correctly. Yes, your engine is completely different. I got my new 2012 ML350 about $7800 bellow MSRP. If you look at the header tank the sensor is an insert that screws in from underneath i.e. A top-rated mobile mechanic will come to your home or office to determine the cause of the temperature warning light turning on and the source of the overheating, and will then provide a detailed inspection report that includes the scope and cost of the necessary repairs. 2001-2004 SLK320 The temperature start from 80 when start and run up to 90-100 when driving. That way, if the needle starts creeping up higher, closer to the hot mark, youll have early notice that something is wrong in the cooling system. I have checked the radiator on a number of occasions and the level looks fine (i.e. P0128 Coolant temperature below Thermostat Regulating temperature fault code. You should also check when the engine is at full temperature to see if the cooling fan is operating (take it for a short high speed spin to get it hot). Overall, the YOUCANIC full system diagnostic scanner is an invaluable tool for any Mercedes-Benz owner or technician looking to troubleshoot problems quickly and accurately. The fan clutch uses a bi-metallic spring that tightens when the temperature increases. Without a gauge, though, its anybodys guess as to how high above normal the temperature is or how long its been above normal. $481. Make sure there is no air trapped in the cooling system. Resurrecting a thread from almost 1 year ago as I used the search facility! Check your coolant level as directed in your manual, though. is this the problem you are all taking about? If your car is equipped with dual automatic climate control technology, you have an advanced system capable of maintaining not only a different temperature for the driver and front passenger, but of doing so automatically. The coolant temperature danger point is 120C (248F). But it was never like this. Mercedes are saying normal. These air dams are essential in newer vehicles, as they force the air through the fan shroud. For most cars, the normal operating engine temperature is in a range of 195 to 220 degrees Fahrenheit, though most dashboard temperature gauges don't show an exact temperature. If you lost power to all systems, it will be caused by either the alternator failing, or an electrical relay or connection being damaged. Too little or even too much antifreeze can dramatically lower the boiling point of the coolant. 1999-2002 E55 AMG I will look into them accordingly and let you know how I get on. Where did it used to be once it got to operating temperature (after five minutes)? This is important for the engine. When you start your car in the morning and turn the key to on, the coolant temperature sensor immediately reads the temperature of the coolant and relays this to the computer indicating that the coolant is cold. Ill post a picture when I get into my car and start it. All vehicles also have a warning light thats supposed to come on when the engine exceeds its normal temperature (it also illuminates for a couple of seconds when you start the engine). The normal engine operating temperature, for a 3306 Caterpillar diesel engine, is 180 degrees. Once you confirm that your thermostat has failed, follow the instructions below to learn how to replace it. I have a CLK 430 and it's usually running around above the 80. Temperature Warning Light is on Inspection Service How much does a Temperature Warning Light is on Inspection cost? TheYOUCANIC full system diagnostic scanner is a powerful tool that can help you troubleshoot Mercedes-Benz problems quickly and efficiently. unplug connector and simply twist sensor to remove (you don't have to drain system). If your engine is too cold, it could have problems starting up. Dec 03, 2013 2000 Dodge Stratus. As soon as you notice the light come on, pull over. Crusising downhill no or little throttle around 80, sometimes a little under. One of the most important is the temperature gauge, which tells you how hot the engine coolant is. My money is on the washer bottle sensor going open circuit (wired in series). I have taken out the sensor today from underneath the coolant expansion tank and with the sensor disconnected from the harness I get a reading of 100 ohms. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Im assuming it would be C or am i wrong? Add coolant to the radiator expansion tank. 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There are many possible reasons that your engine is running hot, including low coolant levels, a clogged or closed thermostat, a failed head gasket or a water pump malfunction. 2000-2003 ML55 AMG Temperature Warning Light is on Inspection, Mercedes-Benz ML350 Power Steering Fluid Service, Mercedes-Benz ML350 Electric Problems Inspection, Mercedes-Benz ML350 Air Injection Hose Replacement, Mercedes-Benz ML350 Lights (Headlamps/beams/brakes) Inspection, Mercedes-Benz ML350 CV Axle / Shaft Assembly Replacement, Mercedes-Benz ML350 Brake Caliper Replacement, P2062 OBD-II Trouble Code: Reductant Supply Control Circuit Open, Understanding the Mitsubishi Routine Maintenance Required and Service Indicator Lights. I really appreciate it! (on top) It is between the ECM (engine control module aka the engine computer) and the alternator. An overheating engine is extremely dangerous. on the up side my MPG improved by an average of 6 and the inside is really warm. Low Coolant: With any engine temperature related issue, the first thing to check is the level of the coolant. If you have a. It would turn over but not fire at all. What are the Common Symptoms of the P0117 Code? Mercedes Engine Temperature Reading From Cluster iRepair Autos 74.5K subscribers Subscribe 78K views 5 years ago Temperature reading on your Mercedes is not always apparent. Most vehicles also have an engine temperature gauge that shows just how hot the engine is. Prices may vary depending on your location. Broken thermostatic fan clutch: Older vehicles use a thermostatic fan clutch to engage the engine cooling fan, which is mounted to the fan blades. You are using an out of date browser. Coolant is a mixture of water and ethylene glycol, and it circulates around the engine block and absorbs excess heat, which keeps the engine from overheating. YourMechanic All rights reserved. In Mercedes-Benz E, C, S, CL, CLK, SLK, GL, G, and ML models, the engine control unit monitors how long it takes for the coolant to warm up. Mitsubishi's Routine Maintenance Required lights indicate when your car needs service. I followed your information , I still cant find the sensor! 2005-2006 C55 AMG Reply Like 04-18-2023, 12:14 PM # 2 chassis Out Of Control!! Youre in for an expensive tow truck visit to unlock your car, and it could take hours P2062 P2062 code definition Reductant Supply Control Circuit Open What the P2062 code means This code means the Engine Control Module (ECM) (https://www.yourmechanic.com/parts/engine-control-module), or Powertrain Control Module (PCM), doesnt see electrical current flowing when it commands the pump on. Based on the temperature of the coolant, the engine control unit adjusts the ignition timing, the fuel injector pulse, and the operation of the electric cooling fan. The outside temperature ranged from 4 degrees in the morning to 8 degrees late afternoon. The difference that is bothering you is that you would prefer to see the gauge neele "midway" on the gauge - Mercedes gauge is not setup that way, your coolant temps (both cars) is quite normal. And, if it never exceeds that on a long drive, you should be good to go. 1 Like blanca.garcia818 February 24, 2017, 10:25pm #5 Im assuming it would be C or am i wrong? On a more down to earth and practical subject, the owner's manual mentions that the engine temperature may go up to 100 c in hard working situations, which you will all agree sounds rather hot!!! Location. 13 years of experience As a general rule, car engines do not like cold weather and do not do operate as well in cold weather. E350CDI (S212) 2010. It may not display this or other websites correctly. Sounds weird but look under the car battery and see if a wiring harness is being pinched under the battery, happened to me and fixed it. Mercedes-Benz E350 211.087 / 211.287 / 211.056 2006-2009 2010-2011 GAS Replacing the thermostat is easy. If If youve locked your keys in your car, youre familiar with that sinking feeling and the knot that forms in your stomach. Town traffic closer to 90. Prices may vary depending on your location. Insufficient Coolant. If thats where its stabilizing, thats normal. My other half did 4 trips yesterday of 25 miles each way, on small Sussex 'A' roads. So i have a Benz C250 2013. Whether youre experiencing issues with your engine, transmission, or other systems in your Mercedes-Benz, the YOUCANIC diagnostic scanner can provide valuable insight into whats going on under the hood. Read full answer. Over time, they age and deteriorate. The engine creates a great deal of heat, and coolant is circulated throughout to absorb heat, and then remove it. Change the engine oil and filter. 0 helpful. Several potential problems could cause your car to start running hotter than normal without overheating. Does anybody know the location or happen to have a diagram for this engine that might include some insights? Manufactures have designed their temperature gauges to display in the center of the gauge when the engine temperature is between 180F and 240F. Thanks everyone for your responses. All of mercedes thermostats cut in at 87C or higher so the engines should be at 90C. 2001-2005 C240 But at no time did the engine coolant temperature gauge get over 60 degrees. We have just acquired a 10 months old ML 350 in dark blue. You must log in or register to reply here. I didn't at the time realise it is a magnetic switch so will test again using a magnet to see if resistance changes to less than 5 ohms. Prices may vary depending on your location. Powered by Discourse, best viewed with JavaScript enabled. 2001-2005 C320 Dec 23, 2016. The . Refitting is tricky with the pipes, cables, etc. The site includes MB Forums, News, Galleries, Publications, Classifieds, Events and much more! It is not safe to drive a vehicle with an overheating engine, or you may ruin the engine completely and put yourself at risk. Mine seems to sit at 80 with fluctuation to 90 and a tad under 80 depending on driving conditions. Your email address will not be published. 195F or 90C. We are being told that the balance shaft is bad and needs to be replaced for $6446.82. Is 10 percent off a reasonable amount to shoot for these days? Before the gauge reads above normal the fan should operate. In this instance, the reading is incorrect and your cars engine temperature is most likely normal. . 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Show example Mercedes-Benz ML350 Car is running hotter than normal Inspection prices An observant driver keeps an eye on the various gauges in the dash - they provide important information. The normal operating temp for any Mercedes is between 80C and Required fields are marked *. We would like to show you a description here but the site won't allow us. Overheating is the most common cause of an irreparably damaged engine, so you should always take a temperature warning light seriously. Great profesional advise I feel completely honest to say thank you for providing the communities with this great service.my go to place for information. Do not overtighten the two bolts. Made with in Silicon Valley. I wasn't expecting such a mass of replies! Sometimes there are two Temp sensors. As the holes get bigger so the running temp gets lower. 1 . Your location and vehicle may affect the price of Thermostat Replacement. CARS.COM Wondering whether or not you should be worried about your engine overheating? They gradually 'go off' over time and over cool rather than under cool. Always use an original MB stat (about 130 from MB Newcastle) and it's also good practice to replace the coolant/antifreeze mix at the same time. moving because it provides true engine temp data not just When it fails in the closed position, it can cause your engine to overheat. Assuming the crack is more than just a crack in the paint, I would say yes, and here is why. On my gauges, GMs generally rest at just under half for proper temp, Ford generally right at half or even just above halfway. Its more than weird. . The temperature start from 80 when start and run up to 90-100 when driving. You must log in or register to reply here. Should you encounter the P0117 code, there are a few signs you have to look out for. The temperature should never come down to below normal until engine is shut off. 2005-2005 E320 4Matic All very good for the newer gas models. The coolant converts that heat to air in the radiator, and then the air is emitted, at which time the coolant is ready to absorb more heat. Sep 22, 2010. Theyre designed to increase the boiling point of coolant by pressurizing the system. Yep, mine sits a fraction over 80C, although it is difficult to get a direct on view on the gauge due to the wheel. I'd expected it to be a standard waxstat but it's an ECU controled motorised affair. Hi, I have recently had a couple of coolant leaks, the pipe going through the firewall (replaced) and then the radiator (replaced) but my Check Coolant Level warning keeps coming on after 20 seconds or so. On average, the cost for a Mercedes-Benz ML350 Temperature gauge is maxed out Inspection is $95 with $0 for parts and $95 for labor. Low fluid can be caused by many things, including not properly topping it off after draining the old coolant, and leaks from various parts, such as one of the radiator hoses, the water pump gasket, a damaged or open bleeder valve and more. jack up front O/S, remove road wheel, remove inner arch and remove washer bottle. Today, an increasing number of new vehicles dont have temperature gauges. As soon as you can safely pull over, do so, and then book one of our mechanics to perform an inspection. I dont know Benz, but if your needle is somewhere around the halfway point, that is probably correct (95 C). Remove each duct by compressing them towards the engine and slipping them off the air inlet. My CLK used to do it (coolant level low), but would go out with approx a cup of water added into the header every now and then (my driveway is on a slight slope so I think that added to the problem). So whats the problem? Get a free detailed estimate for a repair in your area. I have actually spoken to my dealer's workshop people who made similar comments and everyone seems to agree that the 112 engine runs at bit above 80c and then goes up to about 85c+ if sitting in traffic/ restricted air flow. Garage have just confirmed that thermostat is stuck open and will be fixed under warranty. The most common water pump problems are a leaking pump, bad bearings, or an impeller that has rotted away due to a low coolant ratio. 2005-2005 E320 Base Flat rate pricing based on labor time and parts, Trusted mechanics, rated by thousands of happy car owners, Hand-picked, community-rated professionals, Over 25,000 topics, from beginner tips to technical guides, Check cars for recalls, common issues & maintenance costs, Optimize fleet uptime and compliance via mobile vehicle repairs, Partner with us to simplify and scale fleet maintenance, Number of Mercedes-Benz ML350 services completed, TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS, Mercedes-Benz ML350 V6-3.5L - Battery - Missouri City, Texas, Great Job.. Courteous, on time and professional. One of our professional mechanics can diagnose and repair the issue before it becomes a serious problem. I dont know but its almost to the highest number 120 where its marking red. Our certified mobile mechanics come to you 7 days a week between 7 AM and 9 PM. What time does normal church end on Sunday? When the engine takes too long to reach operating temperature, the ECU will turn on the Check Engine Light / Warning Light. P0289 P0289 code definition The DTC P0289 code indicates that the number 10 cylinder is experiencing an above average amount of current at the fuel injector. When the engine first turns on, and it is still cold, the thermostat keeps the coolant from circulating, which allows the engine to warm up as quickly as possible. One of the most important is the temperature gauge, which tells you how hot the engine coolant is.
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