The mechanic will inspect the coolant level, the condition of the hoses, the radiator cap and more. Once the 160-degree F threshold is achieved, the recorded car engine temp has to … Just remember that the cooling system is pressurized and that fluids can reach higher temperatures before boiling as compared to being in normal atmospheric pressure (not under pressure). ACDelco 213-4514 Professional Engine Coolant Temperature Sensor 4.6 out of 5 stars 1,310 #1 Best Seller in Automotive Replacement Coolant Temperature Sensors We currently carry 2 Coolant Temperature Sensor products to choose from for your 2012 Mercedes-Benz ML350, and our inventory prices range from as little as $22.94 up to $25.99. The CTS and ACT readings should be Fins built into the radiator help disperse the heat as air passes over them. When it comes to your Mercedes-Benz ML350, you want parts and products from only trusted brands. I asked the dealership the same question. On top of low prices, Advance Auto Parts offers 2 different trusted brands of Coolant Temperature Sensor products for the 2012 Mercedes-Benz ML350. I highly recommend. When an engine needs to make more power—to accelerate onto a highway, for example—the onboard computer increases the pulse width of the fuel injectors to deliver more fuel. Most cars run somewhere between 180-200F (82-93C). If you’re stuck in traffic on a hot day, this would be normal. In this instance, the reading is incorrect and your car’s engine temperature is most likely normal. Noticed that the engine temperature runs between 50 to 65 degrees which seems low to me. Similar codes: P0125 Mercedes In determining the engine did not reach a “normal” temperature, it takes into account the length of time the vehicle has been running, the intake air temperature (IAT) sensor reading, the engine coolant temperature (ECT) sensor reading, and the speed of the vehicle. The engine creates a great deal of heat, and coolant is circulated throughout to absorb heat, and then remove it. A Mercedes Benz Ml350 Engine Coolant Temperature Sensor Replacement costs between $345 and $429 on average. If the engine is warm, the coolant rises slightly, about half an inch. Get a free detailed estimate for a repair in your area. 2021 So - in hot weather your car running around 100C with the A/C on is not abnormal. Talked to me And reassured me by showing me old parts. We have just acquired a 10 months old ML 350 in dark blue. The auxiliary fans in the M119 engine come on at 107C and 115C (I believe). This should be your guide when checking if you have enough coolant in your system. Will use him again . What is the optimal engine temperature for this paricular model? Faulty Temperature Sensor: It’s possible that the temperature sensor on the engine block is faulty, and sending inaccurate information to the car’s computer/dash gauge. My wife's Mercedes W211 E320 petrol would not start. Very professional. The coolant flows through the engine, and then back into the radiator. Excellent service. Filter. Fan Configuration: Dual Fan Replacement. If a hose has gone “soft”, it’s possible that is has partially collapse and created a bottleneck that limits coolant flow, which will increase the temperature. Being our first mercedes, and coming from many years in Land Rovers, I must say that this is a very nice change indeed. Fast and easy service at your home or office, Backed by 12-month, 12.000-mile guarantee. ), Radiator Fan, Thermostat, or something else. Visually check fuel tank, lines, and connections for leaks. There is also a pressure switch that activates the fans based on A/C refrigerant pressure. Optimize fleet uptime and compliance via mobile vehicle repairs, Partner with us to simplify and scale fleet maintenance, Over 25,000 topics, from beginner tips to technical guides, Check cars for recalls, common issues & maintenance costs, Hand-picked, community-rated professionals, Our mechanics make house calls in over 2,000 cities, Explore nationwide job opportunities for automotive technicians, Trusted mechanics, rated by thousands of happy car owners, Fleet maintenance with certified mobile mechanics, Number of Mercedes-Benz ML350 services completed, TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS, Mercedes-Benz ML350 - Brake Pads Replacement (Front) - San Diego, California. The radiator is probably the most visible, but you also have an upper and lower radiator hose, a thermostat, the water pump, a coolant reservoir and more. All of my other cars' temp gauges stayed in the middle, unless something was wrong. Real customer reviews from 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!!! However, if you’ve noticed the car is running hotter than normal without any mitigating factors, it’s a sign that something’s going wrong. I'd have thought this would be up around 85 to 90 degrees. FILTER RESULTS. Quick and professional. A professional mobile mechanic will come to your home or office to inspect both the temperature gauge and your car’s cooling system. Check condition, position, and mounting of exhaust system. Mercedes-Benz ML350 - Spark Plugs - Memphis, Tennessee, Mercedes-Benz ML350 - Pre-purchase Car Inspection - Orlando, Florida. They run so hot because inside your engine is where the combustion between air and fuel takes place. Got the job done per estimated time of work. A temperature gauge reading slightly higher than normal may or may not be a sign that something’s wrong. This service will be an addition to the normal question cost. Mercedes-Benz In this instance, the reading is incorrect and your car’s engine temperature is most likely normal. Safe would be around 190F, 90 C. Commonly a water cooled engine may run at 220F, 105C maybe even 230F, 110C in the summer with the AC on without significant problems. Also, is it normal for the engine temperature to creep up to 100 and then stay there? I have a CLK 430 and it's usually running around above the 80. Engine coolant circulates through your engine to keep it cool in the summer but won't freeze in the winter. Checking the engine coolant (also known as antifreeze) level in your 2013 Mercedes-Benz ML350 is pretty easy. Examine … 1-3 of 3 Results. When it fails in open position your Mercedes-Benz engine will take a long time to reach the normal operation temperature. Low Coolant: With any engine temperature related issue, the first thing to check is the level of the coolant. The typical injector pulse width for an idling engine at normal operating temperature is between 2.5 and 3.5 ms. It may also be necessary to test drive the vehicle to get the coolant up to operating temperature to verify the higher than usual temperature reading. If it’s low, then the system doesn’t have enough fluid to do its job correctly. Its influence diminishes as the engine warms up to operating temperature. Dual Radiator and Condenser Fan Assembly by APDI®. So I would say what you have is normal!! Check rear axle for leaks. Recently while I am driving, the car engine's temperature is over 80 near 90. I was wondering if it is normal… 1-3 of 3 Results. There are several important components here. Why wont my car start when cold. Duralast (1) Facet (1) Santech (1) This is a test. The 2017 Mercedes-Benz GLE350 has 26 problems & defects reported by GLE350 owners. Is this normal? It would always stop climbing when it got to about 95C. Sticking Thermostat: This could be a sign that your thermostat is about to fail. If I'm not mistaken, this is normal. Mercedes Benz ML350 Coolant Reservoir Problems and Solution. The engine should not be operated at temperatures above 200 degrees. It could also be something as simple as sitting in bumper-to-bumper traffic on a hot summer day. 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. Made with ♥ in Silicon Valley. Usually it does not come down to this but keep in mind!! Instantly book a certified mobile mechanic to come to you, Mechanic diagnoses the problem and quotes necessary repairs, Fair, upfront & transparent pricing for all services. Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST. In most cases you will get a P0128 – Coolant temperature below thermostat regulating temperature fault code. The Mercedes Benz ML350 coolant reservoir level must reach the coolant marker or the filter neck when cold. The best part is, our Mercedes-Benz ML350 Ambient Air Temperature Sensor products start from as little as $31.99. If the temperature is about 0 def. Turn off the engine, get out of the vehicle and do not stand near the vehicle until the engine has cooled down. 10% OFF $75. All are critical to the operation of the system, and if one starts to “go south”, you may experience higher operating temperatures than normal. Thats on the low end of normal. An observant driver keeps an eye on the various gauges in the dash – they provide important information. Mercedes-Benz ML350 Car is running hotter than normal Inspection at your home or office. Normal operating range for the sensor, when hot, should be 185 to 220 degrees. Thermostat open at 87C. Engine adjustments conditions, drive only with at least one win- should not be altered in any way. Change engine oil and filter while engine is at normal operation temperature. The radiator cooling fan is the main fan and runs mostly at idle and low speed to maintain normal operating temperature, and whenever the A/C is turned on. 2013 Mercedes Benz ML350 Coolant Temperature Sensor. You can verify this by reading the ECU fault codes. Our certified mobile mechanics come to you 7 days a week between 7 AM and 9 PM. The mechanic will then provide a detailed inspection report that includes the scope and cost of the necessary repairs. Recently purchased a 2012 E350 Diesel Estate. RepairPal will help you figure out whether it's your Coolant leak (water pump, radiator, hose etc. Damaged Radiator Cap: Most modern radiator caps are pressure caps. 2009 Mercedes Benz ML350 Base 6 Cyl 3.5L Coolant Temp Sensor Product Details Warranty : 1-year limited warranty Anticipated Ship Out Time : 1-2 Business Days Quantity Sold : Sold individually 2013 Mercedes Benz ML350 Engine Management ... 2013 Mercedes Benz ML350 Coolant Temperature Sensor. BRAND. Every car has its own “normal” range, but if you’ve noticed that your car is running hotter than normal, it may be a sign of an impending problem. Our certified mobile mechanics come to you 7 days a week between 7 AM and 9 PM. I, however, think this … Coolant Temperature Sensor. Deteriorating Hose: Your radiator hoses are responsible for transporting coolant to and from the radiator. They’re designed to increase the boiling point of coolant by pressurizing the system. If your cap is failing (the seal is generally the problem), then you can expect to see higher than usual engine temperatures. Reymond was very professional and very nice. One of the most important is the temperature gauge, which tells you how hot the engine coolant is. Advance Auto Parts has 1 different Ambient Air Temperature Sensor for your vehicle, ready for shipping or in-store pick up. If you're running the a/c on a hot day and stuck in stop n' go traffic, the coolant can easily reach over 100C. Mercedes-Benz ML350 - Brake Pads Replacement (Front, Rear) - Las Vegas, Nevada. Voltage will be 3 volts cold .5 volts hot. He arrived at my site on time, and did his work very professionally. Several potential problems could cause your car to start running hotter than normal without overheating. On both my MY00 430 and my current MY05 500 the temp never reached 100C no matter how hot the ambient temp was or how hard you worked it, even in the desert in summer. F., the resistance will be over 10,000 Ohms. PRICE AS TESTED: ML350, $54,445/ML350 4MATIC, $62,750 (base price: $48,175/$50,675) ENGINE TYPE: DOHC 24-valve V-6, aluminum block and heads, direct fuel injection Displacement: 213 cu in, 3498 cc © With his recommendation, I saved thousands of bucks. display a reading of 389 degrees. Mercedes-Benz Tech Information and Support, ML, GL, G-Wagen, R-Class, Unimog, Sprinter, Problem starting when at operating temperature. I test drove a brand new ML500 and noticed it was a bove 80 as well. This sensor has a major influence over fuel mixture when the engine is cold. Normally the PCM orders the car engine coolant temp sensor to record temperature that is above 160 degrees Fahrenheit within 15 minutes from when the car engine was started. Strongly recommend his service. Our certified mobile mechanics can come to you now. owners like you. This car's temp gauge goes up and down between the middle mark of 80 and close to 100 a lot of times. He helped me to do a pre-purchase inspection for my 2011 Mercedes M350, which was bought from a private party through craigslist. Brand New Coolant Temperature Sensor Suits Mercedes Benz ML320 ML350 W163 1 x Coolant Temperature Sensor Fits Mercedes Benz ML320 ML350 W163. Page 323: Coolant Temperature Stay away Mercedes-Benz Limited Warranty. In this case, the Check Engine Light may come on. from the engine if you see or hear steam coming from it. Stay cool when you need it most with this radiator/condenser cooling fan assembly. The resistance of a normal sensor to ground will vary a little depending on the vehicle, but basically, if the temp of the engine is around 200 deg. YourMechanic All rights reserved. Can anyone confirm my assumptions are correct and if … Your coolant system is designed to help remove heat from the engine during operation. ML350. Matthew is a great guy! The engine coolant temperature (ECT) sensor is a relatively simple sensor that monitors the internal temperature of the engine. To experts in car mechanics Dear Sir, I have a quick question regarding the normal operating temperature (40-120F) for a mercede benz C-300. F., the resistance will be about 200 Ohms. One of our professional mechanics can diagnose and repair the issue before it becomes a serious problem. Engine coolant temperature sensor. Thank you for a great job. The worst complaints are transmission problems. If it has started sticking, but hasn’t quite given up the ghost, it’s possible to see higher engine operating temperatures without overheating. Check transmission for leaks. Engine Cooling. What is a Coolant Sensor and what happens if it fails to function properly? Also you can check the resistance of the sensor to ground using an Ohm meter. Over time, they age and deteriorate. Mercedes-Benz ML350 Overheating? It's perfectly normal. Fire is very hot and the coolant which is the temp you are reading also gets hot although not nearly as much as inside the cylinders. JOHN J66 MEMBER; 2010 MERCEDES BENZ ML350; 6 CYL; AWD; AUTOMATIC; 108,000 MILES; Hello, I was trying to find the location of the sensor due to the fact I had the engine light come on. The coolant temperature sensor, also known as the coolant temperature switch, is the engine management system that monitors the temperature of the coolant and relays this information to the ECM. In order to get an accurate reading, your 3.5 liter engine should be cool to the touch when you check it. 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. It tries but will not fire. The normal engine operating temperature, for a 3306 Caterpillar diesel engine, is 180 degrees. Use Code: DIYSAVE10 Online Ship-to-Home Orders Only. Normally it runs just above 80C. Car is running hotter than normal Inspection, Mercedes-Benz ML350 Control Arm Assembly Replacement, Mercedes-Benz ML350 Headlight Bulb Replacement, Mercedes-Benz ML350 Serpentine/Drive Belt Replacement, Mercedes-Benz ML350 Water Pump Replacement, Mercedes-Benz ML350 Variable Valve Timing (VVT) Solenoid Replacement, Mercedes-Benz ML350 Intake Manifold Gaskets Replacement, Mercedes-Benz ML350 Car Door Lock Actuator Replacement.