Mercedes thermostat stuck open

Mercedes thermostat stuck open

Re: What if thermostat is stuck (open/closed)? If the thermo is stuck OPEN, the car will run slightly under the warm area (middle of the gauge). Use the form above to tell us what you drive. The dash gauge only went up a little at running temp. In order to save money and get back on the road, try looking into some do-it-yourself fixes for common Mercedes A programmable Honeywell thermostat is larger than a basic thermostat and produces LED readout of the room temperature. DIY Auto Repair Videos 147,150 views. When this component fails your Mercedes-Benz will turn on the check engine light triggering any the following codes: P2004 – Intake Manifold Runner Control Stuck Open Bank 1 The engine control module uses the Engine Coolant Temperature (ECT) sensor to determine whether or not to trigger a OBD-II P0128. At that point, the thermostat opens up and allows the coolant to circulate between the engine block and radiator where it is cooled down. If the thermostat becomes stuck in the open position, there is continuous flow of coolant into the radiator causing the engine to run cold. Aug 29, 2018 · In this video I will be talking about trouble code P0128 – Coolant Temp Below Thermostat Regulating Temp and going into how your cars thermostat work and how it fails to cause this code to be set. A stuck closed thermostat will cause the engine to overheat. 22 bronze badges. try starting the engine when cold, be careful not to get your hands near the fan blades and feel the top radiator hose (the one approx 2 inches/50mm diameter) to see if it stays cold then warms when the temp guage rises towards normal. But you may not know that it's also bad for a car to run too cool. Once the thermostat begins to open, it's also very important to not rev the engine, even slightly, as this will force coolant out of the open radiator. A stuck thermostat might be to blame if your gauge marker nears the red danger zone within 5 to 15 minutes. A thermostat that is stuck open can cause the engine to heat up slowly, or not at all. But, when the weather gets warmer outside that thermostat stuck closed will not be able to allow the reservoir water flow and the vehicle will begin to have overheating issues. The computer monitors the warm up cycle of your engine -- it looks for your coolant temperature to rise to a certain level within a given time frame. Follow it to the block - you should a (bubble/round shaped object (thermostat housing) at the block side of the top radiator hose). if it stays cold its the thermostat stuck shut, if it gets hot, suspect Check Engine Mercedes P2004 Code. This is due to a leak in the seal or the thermostat open stuck. blasted heat (but cool air came out) and stopped car. A defective engine coolant temperature (ECT) sensor and/or ECT wiring (most often at  If it's permanently stuck open then the car could be 'overcooling'. Nov 03, 2009 · You dont sound like an fool, this may well be a good question. Electrical problems such as a blown fuse, defective power relay, heater switch or resistor, or a loose wire should also be checked. The thermostat on a Mercedes-AMG M156 has a finite lifespan and requires regular replacement throughout the lifetime of the vehicle. When a trouble code P0128 exists by itself, usually a shop technician will suspect a fault engine coolant temperature sensor or stuck open thermostat. Left click on 'Open new Jan 21, 2018 · Hi all, I usually remove and reinstall the coolant reservoir cap every month to prevent it from becoming stuck. Overcooled engines run inefficiently, which leads to increased fuel consumption and higher emission levels and engine parts enduring more wear. This may affect your engine's performance as well as your heater. To replace the thermostat, you'll need to drain the coolant, which requires opening the drain plug at the bottom of the radiator, which requires removing the splash guard at the bottom of the car, which requires jacking up the car and putting Remove the vacuum line from the vacuum motor and check for engine vacuum. This cylinder is filled with a wax that begins to melt at perhaps 180 degrees F (different thermostats open at different temperatures, but 180 F/82 C is a common temperature). Your automobiles problem is that the coolant isn't circulating quickly sufficient at intense velocity, subsequently inflicting it to overheat. Also, we will be trying for the first time to open the t-stat with A torch and its pretty cool and surprisingly works. Get Yours Today! We have the best products at the right price. The worst complaints are accessories - interior, electrical, and steering problems. The thermostat fully open about 15-20 degrees above its rated temperature. Here at Advance Auto Parts, we work with only top reliable Thermostat product and part brands so you can shop with complete confidence. To remove the cover from a Honeywell programmable thermostat, pull the lower right corner With a brand new interior and chassis, DeMuro thinks buyers are justified in wanting a new G63. You might notice some bubbling of coolant out of the open radiator during warm up. If the thermostat is stuck in an open or closed position, it will not regulate the temperature and will need replacing. TOM: The thermostat is just a valve that goes between the engine and the radiator. When it comes to your Mercedes-Benz 190SL, you want parts and products from only trusted brands. It should open at that temperature. Thermostats can fail over time and become weak or stuck in an open or closed position. When the thermostat's valve is stuck open, the coolant in your engine keeps on flowing around the radiator all the time. 70-234757-1 Hella Mercedes Oem Engine Coolant Thermostat Chassis (46. 10 silver badges. I had 2 stick closed. When the wax melts Jul 24, 2018 · If you are talking about a water cooled engine, that usually it is caused by a thermostat that is stuck open. 3. The OBDII sets when the engine coolant temperature has not risen enough to open the thermostat even though the engine has run long enough. A fuse blows The W123 chassis covers 240D's, 300D's, 300TD's, 280E's, and several other models of Mercedes coupes, sedans and wagons from model years 1977 to 1985. One sign of this The average cost for a Mercedes-Benz E350 thermostat replacement is between $319 and $435. Also, test the TPR valve as Jun 26, 2018 · The bad thermostat can ruin the entire vehicle. As a failsafe, they are designed to stick in the open position so that your car can function with a  Heat up the water and watch as it approaches the opening temp of the thermostat . ” When the engine has been sitting for a while and is not warm, the thermostat will be closed. In the “stuck open” position, the automotive thermostat prevents the engine from reaching full operating temperature. If you have the Torque smartphone app, or a ScanGauge, or any old OBD-II scanner at all (engine temp is a standard parameter, not a Prius private one TOM: Yes, Lee, removing the thermostat does make the car run cooler. Two things will happen. The cabin warms up quickly, but I would be happier Nov 09, 2019 · Removing the thermostat and of course replacing the housing with it gone, will allow coolant to flow unrestricted in your engine. If stuck in the open position, a faulty thermostat prevents the engine from remaining at the ideal operating temperature, reducing fuel economy and preventing the vehicle's heater from supplying hot air to the passenger cabin. More commonly, the thermostat can be stuck open, making it difficult for your engine to warm up. Your temperature  15 Jun 2016 And more importantly, what does it being stuck closed, or even stuck open for that matter, mean to me and my car? A thermostat regulates the flow  If the thermostat becomes stuck in the open position, there is continuous flow of coolant into the radiator causing the engine to run cold. I put the new one in and it measured 182 on my scanner. So it seems the thermostat is no longer stuck open. . drove home with heat blasted, but again cool air so just kept rpms low. He had to have gotten the oil temps above 187 F (I think) for the thermostat to open. 39. Classic stuck thermostat symptoms so I have booked it into the dealers to be looked at. Only then does the BMW thermostat open and allows coolant to move through your radiator for engine cooling, adjusting flow rate to ensure safe operating temperatures under all conditions. clogged radiator) Also, I'd expect that a stuck-closed thermostat would mean that the car would still be warmer than normal when moving. If the temperature has not cooled down, it means the thermostat has failed. If a thermostat is "stuck" that means it is over-cooling or not cooling the engine enough. If a Stant thermostat does not have a jiggle pin, it will have a "bleed notch” or other method of 27 Jan 2019 Each thermostat is gauged to open at a specific temperature. Need to replace your automotive's Thermostat or Thermostat Housing? Then shop at 1A Auto for a high quality, aftermarket Thermostat or Thermostat Housing Unit replacement for your car, truck, SUV or van, at a great price. This will cause your engine to never   17 Dec 2009 It sounds to me like the thermostat is stuck open. To detect this problem, simply start the engine, remove the radiator cap and look inside the radiator. The engine will take forever to reach operating temperature. When the car has been sitting for a while and the engine cools, the thermostat will close. Thermostat replacement and modification . Almost like the thermostat is stuck open but you would think th … read more Mar 05, 2020 · If one is very hot and the other is cool, your car’s thermostat is likely stuck in the closed position. 1A Auto has a large selection of Auto Thermostats and Thermostat Covers for many makes and models, and ground shipping is always free! 203° IS THE TEMPERATURE THAT NAVISTAR DESIGNED YOUR TRUCK TO RUN AT. If the engine can't reach operating temperature the car's ECU will keep the car in "open loop" in open loop, the ECU tries to get the engine up to temp by adding more fuel making your engine rpms to increase, thus creating more heat. Mercedes-Benz C-Class: How to Replace Thermostat. Often this code causes the Check Engine light to come on and off in cold temperatures. The OBDII trouble code P0128 - Coolant Temperature Below Thermostat Regulating Temperature means that the engine does not reach expected temperature after running for sufficient time, or in other words, takes too long to warm up. Oil Thermostat opening temp Car is a '74 911 but had a SC motor, trans, and trombone oil cooler, so not sure what year thermostat/regulator I have, Has a 3. Notice the heavy deposits of aluminium oxide on the neck. I had the thermostat replaced as i presumed that this was stuck open but no difference. The "check engine light" will come on and also your temperature on the little gauge will be higher than normal (or lower in some cases if the thermostat is stuck OPEN). Causes. The thermostat is one of the components of your car's cooling system. P2181 PORSCHE | Thermostat Stuck Open | This fault is stored if the engine is not heated from below 40 °C (104 °F) to over 60 °C (140 °F) after throughput of a defined mass air Re: thermostat stuck open? i just reverse flushed the heater core. 5% similar) Also, a thermostat can be stuck open after the coolant has cooled off. Code PO128; coolant temp below thermostat regulating temp. A week or so later I got a "coolant level too high" message. Nevertheless, you should be extremely careful when doing this as you could be burned. Good Luck. One of the signs A few months ago my CEL came on, went to autozone they came back with thermostat temp too low and flapper stuck. We changed the thermostat and filled the reservoir to the max coolant line with undiluted antifreeze. 3 CDTi 2011's thermostat is stuck open so I am going to have to buy a new thermostat, the problem is I have no experience with car maintenance or repair, I haven't been able to Apr 14, 2020 · A stuck accelerator, however, is an electrical or mechanical failure that could occur in any vehicle. what you to do crank engine up let idle warm up until coolant drops in expansion tank keep This means that the engine's powertrain control module (PCM) has detected that the engine has not reached the required temperature level within a specified amount of time after starting the engine. When the engine warms up, wax inside the thermostat expands pushing down on spring loaded valve. I feel 15 to 20 is too slow and the thermostat is indeed stuck open. 2/turbo cooler in the wheel well, and does not go above 125 degrees on a 75 degree day. Thermostats often remain permanently stuck open. Her car has been having an intermittent problem where after driving for around 20 minutes, a white coolant warning comes up on the dash, and the AC compressor kicks off until the car is restarted. While the code doesn’t specifically state that the thermostat is faulty, the code sets because the coolant temperature didn’t rise sufficiently with a specified amount of time. Your vehicle's heater works in conjunction with the engine's cooling system. Main hose from radiator to engine is hotter than hose from coolant reservoir to Jan 25, 2015 · How to Replace the Thermostat - Mercedes Benz W203 C240 C320 E320 ML320 ML350 V6 - Duration: 3:28. Thank you for using fixya and good uck Mercedes-Benz C-Class Engine Problems. It’s just a millimeter but this makes a huge difference. MERCEDES BENZ CLASS E II 210 Pictorial DIY - Thermostat replacement I decided to replace the thermostat because I am having bad fuel mileage (17-18 mix 65&37 highway 35% city) and my engine temperature wont go over 80C and I read somewhere that a bad thermostat may be the cause. Nov 20, 2017 · A sticking thermostat is a serious problem. This have to be replaced by the new gasket which comes with the new thermostat. A vehicle can run just fine if the thermostat doesn't open. You can remove an upper radiator hose housing and check under the thermostat, too. Also note the placement of the rubber gasket. Besides these two cases, the thermostat may also need to be replaced if the thermostat housing is leaking coolant. P. Wait a few hours, then check the water temperature at a faucet. Lets say it can open it at 95C versus 105C mechanical specs. The thermostat manages the amount of coolant that is distributed through the engine. A blown fuse is a symptom not a cause. As soon as the new thermostat was fitted, the coolant temperature reached normal temps (80C-90C ish) reasonably quickly again, and the heater made it toasty warm inside pretty quickly. Replace yours before it fails. If the engine does not warm up enough because the thermostat is stuck open, the heater will not deliver warm air to the interior. A rod connected to the valve presses into this wax. This will cause your engine to either become too hot or too cold, severely affecting the performance of your car. Corroborating this observation is the fact that the temperature rises gradually and not all at once as would be expected when the thermostat opens. All parts used in these pictorials are available at the diesel parts for sale page. Solution: If the thermostat is stuck open, the only thing for it is a replacement with a new part. coolant full. For my Gen 1 it's 82 celsius, fully open by 85. This is the same part as you would buy at the dealer for 2x the price. We also have thermostat housings, covers, gaskets and seals available for most model. THIS IS THE THERMOSTAT THAT WAS AND STILL SHOULD BE IN EVERY POWERSTROKE 7. Here’s What Could Be the New & Very Sleek 2021 S-Class. A simple way to diagnose this is to feel the radiator hose and monitor how hot the temperature of the coolant is when it starts flowing through the radiator hose. The thermostat works by the opening or closing a valve to control coolant flow between the radiator and engine. OEM recommended temperature. Replace thermostat along  Thermostat stuck open. A common failure point for Mercedes-Benz cars equipped with the M272 (350) and M273 (550) engines is the intake manifold air flap lever. The secret of the thermostat lies in the small cylinder located on the engine-side of the device. 3L Powerstrokes that were manufactured used an International water pump and an International short stem 203° thermostat . Sounds like a stuck open thermostat to me for sure. Sep 11, 2010 · i think the thermostat and the housing may come as a complete unit, not certain though. If the thermostat is stuck closed, antifreeze won’t flow from the radiator , resulting in car overheating. If the hose is too firm to squeeze, the thermostat is stuck. A malfunctioning thermostat in your Mercedes Benz w204 can cause the car to overheat, or not warm up properly. Check the thermostat to make sure it's working or not working. The most common issue a thermostat valve can have, which will cause it to cease functioning, is it it becomes stuck in the open or closed position. Original review: Dec. Replacement is the best way Noticed that the coolant temperature gauge is sitting at the first 1/4 mark, while in the summer it was just to the left of the 1/2 mark. W123 is the internal chassis-designation Mercedes-Benz used for their executive line of The thermostat should open and allow coolant in once the engine is adequately heated. Mar 01, 2018 · Signs of a bad thermostat. The Check Engine light may come on too. Getting a new thermostat fitted including parts and labour was less than £100 iirc. A stuck or faulty thermostat can cause a myriad of cooling problems, including over-heating. Therefore, thermostat removal is harmful to your car and its components in every possible way. Oil temp however takes much longer, so don't drive the car too hard early on until everything is warmed up. What does a P0128 code mean on a 2011 Mercedes ML350 4-matic? This code indicates that the engine thermostat is stuck in the partially open position. Guess I'll make the dealer appointment Monday. Mercedes-Benz Thermostat At Advance Auto, we carry 76 different types of Thermostat products for your Mercedes-Benz at competitive prices to fit your budget. Low Engine Temperature If your car is running unusually cool and not building up any heat in the engine, it's likely that your thermostat is stuck open and is letting too much coolant through. 9cdti 56reg has been pulled but the bonnet will not open. The CEL light went off. It's easy to know when your thermostat is defective. Lunchtime today with ambient showing as 6 degrees the car warmed quickly and the gauge went promptly to around 90 degrees and it stuck there no matter how I drove. Nov 25, 2019 · When a thermostat gets stuck to the ‘open’ position, the engine takes a much longer time to warm up. How to test a thermostat DIY Step 1. Air trapped in the heater core. This thermostat is used to regulate the flow of coolant through the engine based in coolant temperature. Even worse, if the thermostat is stuck closed, there will not be enough coolant flow, and your engine may overheat, leading to engine damage and costly repairs. When the heater blows slightly warm instead of cold air, a thermostat with stuck open valves is to be blamed for. Next, try moving the mechanical linkage by hand to open the valve. Do I need to replace it : April 18, 2019 : Followup from the Pelican Staff: Most likely, yes. The only thing lacking is the tiny Mercedes Star stamped on it. It very seldom will happen in the summer. Sounds like you have a code P0128. The OBDII sets when the engine coolant temperature has not risen enough to open the thermostat even When the engine is cold, no coolant flows through the engine. In either case, thermostat replacement is necessary. Has anyone got a dodge to free up a stuck thermo. Engine coolant thermostat housing assembly. Either way, it needs to be replaced, and PartsGeek. thermostat stuck open on G 1. Even worse, if the thermostat is stuck closed, there will not be enough coolant flow, and your engine may overheat, leading to engine damage and Well I went and got a 82 degree C thermostat at Toyota $36 with the gasket. But you should never, ever do it. If your thermostat is stuck open, the coolant will never get hot enough to provide adequate heat during the winter months. Thanks D! I will stop by AutoZone tonight real quick, and have the codes checked I am pretty sure the thermostat is stuck open because: 1. A stuck thermostat is the most common cause of a P0128 code. It's purpose is to keep the Check Engine Mercedes P2004 Code. Similar codes: P0125. The 2009 Mercedes-Benz C300 has 707 problems & defects reported by C300 owners. 16 Apr 2018 If the radiator hose heats up slowly, the thermostat is stuck open or opening prematurely and needs to be replaced. 2, 2019. Thermostat stuck closed: When the thermostat is stuck closed, the engine might overheat. you wil be able to tell because the uppser heater hose wil get hot". BC Apr 16, 2018 · The most common cause for P0128 is the engine coolant thermostat is stuck open. This thermostat is rated at 80°C/176°F. If you find yourself in this situation, take action by replacing the component before the situation gets worse. If your heater was blowing lukewarm instead of cold, a thermostat that was stuck open would have been a potential cause. Recently the heat isn't as hot as it should be and the engine temp gauge indicates it doesn't get very hot. If the thermostat doesn’t open, or won’t stay open, the coolant won’t move to the radiator and the engine will overheat, causing damage to gaskets and internal engine parts. A closed thermostat valve will cause the engine to overheat, harming the engine and potentially destroying the head gasket, while an open thermostat valve will over cool the engine, causing it to work much harder than necessary. If the car does get up to temperature as it should, there’s probably something else that has How to open stuck bonnet on a vectra 56reg \015 The release catch on the bonnet of my Vectra 1. Thermostats normally open at around 80-90°C and the hose will only get hot once the thermostat has opened. Nov 14, 2015 · (4) Stuck open thermostat . 6 cavalier. Just pull it out with your hands. In some cases, you can open an engine block tap or remove a water jacket stud to look for coolant, too. Until 1996, all 7. The one that was in there was the exact same thermostat, it was stuck open. with pressure cap off radiator coolant level in expansion is at full cold mark. Photo Credit: Wikimedia Commons. Scan it, and if there's nothing, maybe the T-stat was lazy combined with a cold day at startup. Re: Thermostat stuck open You are lucky. A fatigued thermostat also takes much longer for the vehicle to warm up from cold resulting in unnecessary engine wear and excessive fuel consumption. Save on cost when you find your Mercedes-Benz replacement Thermostat with us. There is a simple test you can perform to test your water heater thermostat: Mark the current temperature setting with a marker, then turn down the temperature on the thermostat. When I "feather" the gas pedal while letting the clutch out the engine seems to sputter until I get the Unbolt the thermostat housing. Let  If the thermostat is stuck in an open or closed position, it will not regulate the temperature and will need replacing. With your vehicle info handy, give The Pelican Parts parts specialists a call at 1-888-280-7799. This causes the valve to open; flow to the bypass port is blocked and flow to the radiator is enabled. AutoZone carries hundreds of thousands of parts and accessories. Took a 50 mile highway trip in my ‘86 300E this evening and temp was way down at the mark between the 40c and 80c lines the whole time (60c, I think — if I understand VDO gauges correctly, it it is not evenly in the middle). – Engine Light ON (or Service Engine Soon Warning Light) P0128 Mercedes-Benz Description. The engine will reach its optimal temperature and the entire system will work properly. May 13, 2017 · Though your car is better off with the thermostat stuck open rather than closed, you should repair the component immediately if you suspect it is stuck open. Possible causes of OBD code P0128 Mercedes A code P0128 Mercedes may mean that one or more of the following has happened: Low engine coolant level Leaking or stuck open thermostat Faulty cooling fan (running too much) Faulty coolant temperature (ECT) sensor Faulty intake air temperature (IAT) sensor Since 1996 BMW introduced 105C MAP DME controlled thermostat for V8 and 97C for Inline 6 cylinders, which can be controlled by DME when needed. Open the radiator cap and check for coolant. The thermostat, also considered as the watchdog of the cooling system has two failure scenarios- getting stuck in an open position, and getting stuck in the closed position. -----Bill Krause '79 911SC Euro There are two common scenarios that tell that you have to replace your car's thermostat: 1. If it's not opening and closing properly, your vehicle may display several different problems. You may hear the phrase “the thermostat was stuck open or closed. If you suspect a faulty thermostat, run a few checks. For the most part, German manufactured vehicles such as BMW, Mercedes, Audi, Mini, Volkswagen, Opel and Jaguar use this system. Alternatively, let your car idle for a while and open the hood with the engine still running. So here is what it is, Nothing crazy here- just a heater, so DME can heat it up and open it earlier than thermostat is calibrated. You will not get fully hot heat out of the vents, either. This worked perfectly as a replacement thermostat on my 2007 Mercedes C230 Sport (W203 body and M272 engine). improve this answer. It's probably not stuck open in my case because the light would go away after driving on local roads. After the housing is removed, you have access to the thermostat. RAY: Everybody knows that it's not good for a car to run too hot. If you find yourself driving a vehicle with a stuck accelerator, stay calm and utilize safe driving fundamentals until you are able to get the vehicle off the road. Second, I have never replaced the thermostat on your make and model, however it's very simple. If the thermostat does not need replacement the air conditioner condenser and the radiator should be checked for air flow. Typically, this can be recognized if the coolant temperature gauge stays in the red zone but the radiator remains cooler to the touch. 3:28. 1. Or simply the debris gets inside and causes thermostat wear. This pictorial has actually two purposes. If the Powertrain Control Module (PCM) detects the calibrated amount of air flow and engine run time have been met, and the Engine Coolant Temperature (ECT) has not met the minimum thermostat regulating temperature, the code P0128 Mercedes-Benz will set. temp dropped so finished half mile to work. Look to see if the coolant is swirling/flowing immediately — that means the thermostat’s stuck open. When the tech at BMW drove my car he said that it drove normal and he didn't notice any problems. The first is to show you how to change out your coolant thermostat, and the second is to show you how to modify your new thermostat to keep your temperatures down, if you are having that problem. . Oct 02, 2011 · I have a 2006 Mercedes e320. com has the exact replacement part for your 1986 or 1987 Mercedes 300SDL, from either Beck/Arnley or Stant. Slideshow: The flagship luxury sedan from Mercedes Benz is apparently getting an all-new look come 2021. Note about price: The cost of this service or repair can vary by location Mar 28, 2016 · A Check Engine light system check revealed a possible thermostat problem. In 1996, Ford changed to a lower degree 195° thermostat This worked perfectly as a replacement thermostat on my 2007 Mercedes C230 Sport (W203 body and M272 engine). I dont want to remove it because it looks like a right pain-the cambelt cover etc needs to come off Help please?? Nov 11, 2019 · Replacing a thermostat is a relatively easy DIY project on some cars but can be difficult on others. After an initial amount of resistance it compressed so I decided to put a hose clamp around it for resistance and heat it up to 190°F and see how it would react. Air is not supposed to get into the cooling system. Even if it works correctly in a pan of boiling water, it may still stuck open or closed in the car. Performance Products stocks thermostats for most Mercedes models 1972-on. When your thermostat does not respond properly to the temperature conditions in your cooling system, you can have a problem. On the thermostat that was stuck a bit open I decided to put it in a vise and just see if I could force it to close. The heater builds up warmth as the vehicle runs and brings in the warm air from the engine to warm the interior of the car. Anyone else had this issue? Searched the forums for P0128 and didn't get any hits. The thermostat can also become stuck open, providing your engine with an ongoing flow of coolant. Whether a thermostat is stuck open (engine too cold) or thermostat stuck closed (engine too hot) an old or failing thermostat must be replaced immediately. With the engine cold, remove the radiator cap and start the engine. The only code that the car had was the stuck open thermostat. 1A Auto has a large selection of Auto Thermostats and Thermostat Covers for many makes and models, and ground shipping is always free! My car is bone stock besides the Magnaflow mufflers. If no coolant is present in the upper tank, open the drain tap and check for the presence of antifreeze. Car in red, overheating after a few minutes drive, check engine light on, no leaking coolant levels, just brought car drove 170 miles and told to top up coolant by the seller as had just replaced every thing in all the fluids. Overcooled engines run   13 Jun 2019 You may hear the phrase “the thermostat was stuck open or closed. - Nick at Pelican Parts My car takes only about 6 - 8 mins of slow driving to show normal temp on the gauge. Select your Year, Make, Model and Engine to find those that fit your vehicle. Is the upper radiator hose hard to press when the engine has cooled down after you drove it for at least 20 miles? When you open the bleeder valve, does it spray coolant or air? The thermostat itself is hard to test. A thermostat responds to changes in temperatures. The reason it will overheat without one is because when open the hole in the thermostat is precisely sized for the proper coolant flow. Common Mercedes Problems & Solutions If you have a problem with your older Mercedes and are trying to figure what is causing it or how to fix it, you have come to the right place. Once it opens, the coolant can circulate through to the radiator to be cooled. g. In addition, the car interior will not heat up properly. The thermostat is a component that blocks the flow of coolant to the radiator until the engine has warmed up. Dirt, debris or bent fins can cause a restriction. This is where your thermostat should be located. your thermostat is old, and quite often stuck open. Instead of turning a dial to raise or lower the temperature, most use a touch pad for programming and manual temperature manipulation. The thermostat works by the opening or closing  3 Jul 2018 Stuck Open. Could a stuck-closed thermostat be the cause for inadequate flow? Yes, but there are other more likely causes: a failing water pump. temp higher than usual when There is a conventional wax-driven engine thermostat (at least in the earlier gens) and the car specs say what the opening temperature should be. Thermostat replacement; 02 Always Running Hot A faulty thermostat means the engine will either overheat or under-heat, depending on whether it's stuck in the open or closed position. The most noticeable issues occur when the thermostat gets stuck in either the open or closed position. Remove the thermostat housing and look at the thermostat to see if it is indeed stuck open. Includes housing, thermostat and seal. My driveway is kinda steep. Often, the intent of the P0128 code is to indicate a faulty thermostat (likely stuck in the open condition). Thermostats fail in one of two ways, either stuck open, or stuck closed. When this component fails your Mercedes-Benz will turn on the check engine light triggering any the following codes: P2004 – Intake Manifold Runner Control Stuck Open Bank 1 Someone on the Astra Owners Club has just said: "I agree, sounds like the thermostat is stuck open. S. But once you have the housing off, replacing the part is only another minute of work. Once safe, you will need to have the vehicle repaired by a professional technician. Mercedes Thermostat - Borg Warner / Wahler 2722000415 C230, C280, C300, C350, CLK350, E350, GLK350, & more Save for later 13 Reviews Available In Stock. With a heat-resistant glove on, squeeze the hose near the middle. Replace the thermostat and that should address your issue. Equip cars, trucks & SUVs with 2010 Mercedes Benz C300 Thermostat from AutoZone. The photos My Vauxhall Corsa 1. When you take your car to a mechanic you’re not only paying for the parts but you’re also paying for the labour and any expenses the mechanic charges in order to make a profit for their business. Though your car is better off with the thermostat stuck open rather  6 Oct 2019 In this video i will be teaching you the difference between a car thermostat being stuck open and being stuck closed and if it is dangerous and  21 Apr 2017 -a faulty thermostat will either become stuck open, stuck closed, or perhaps something in between where your temperature fluctuates large  1 Jan 2019 Thermostat stuck open: When the thermostat is stuck open, the engine temperature drops below normal when driving, especially on the highway  12 Jan 2016 A thermostat stuck in the open position constantly pushes coolant into the engine and causes a lower operating temperature. 2014 US CLA-250 9900 Miles First CEL. Sounds like the thermostat may be stuck open or has anyone put a colder thermostat in the car,because once it starts to get cold it will throw a SES with a colder then stock thermostat. The engine coolant thermostat is the most common component of the cooling system to fail, which can cause your car to overheat in the unlikely event it were to be stuck closed. The computer does this because it is trying to go into closed loop operation as quickly M103 W124 Thermostat Stuck Open? Outside temp is currently in the 20's around here. This can be quite an annoyance, especially if you live in a cold climate. The thermostat is accessible when you remove this. Jan 12, 2016 · A car thermostat regulates the flow of coolant through the engine and is an incredibly important player in the operation of your vehicle’s engine. fill coolant system up by pouring coolant in the expansion tank until coolant level stop dropping in the expansion. Once the engine reaches its operating temperature, the thermostat opens. By Jeffrey Bausch - February 28, 2020. Step 2. P0128 Mercedes-Benz Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) check for the real temperature using a laser temperature gun pointed at the thermostat housing when the car is warm (driven at least 10 miles) if the thermostat housing is less than 88 degrees Celsius then the thermostat has failed open (as its supposed to do) A stuck-open thermostat can also cause lack of heat from the heating system. Oil temperature is per normal, just under the 100 degree C mark (212 F) just a bit left of the middle). Mercedes-Benz M156 Engine Thermostat Kit (C63 AMG, E63 AMG, SLS AMG & More) - Failure Symptoms And Review Dec 03, 2018 · If your thermostat is not functioning properly, you might hear it said that it is stuck open or it is stuck closed. Locate the top radiator hose2. ” When the engine has been sitting for a while and is not warm, the thermostat  15 May 2018 A stuck open or prematurely opening coolant thermostat. A high temperature reading followed by a drop to normal temperature is a common first sign of a sticking thermostat. This is not good. I have seen a few threads about this on this forum but my case is slightly different. It will run on the warm side, not past halfway, and heat the interior just fine. To verify the actual engine temperature, check if the top hose to the radiator is hot after a drive. Comments: The code on my Mercedes c 350 is saying my thermostat is stuck open. The second was on a '02 90 Merc and it had a warning horn which saved the engine. I have a vito 112 on a v plate which blows cold air most of the time. Yesterday when trying to open the cap, it appears to have separated from its lower half. After you start your car and the engine is running and attains a set temperature, it will signal a sensor inside the thermostat that will One of the main reasons why the thermostat becomes damaged is that the valve becomes stuck in its opening and closing position because of the wax build up. A sticking thermostat is a serious problem. What to look for when buying a Mercedes SLK 2004 - 2011, covering common problems to check for and overall vehicle reliability. A good test would be to drive the car for 10 minutes then pull over with the engine running. In other words . After researching a bit on Mercedes forums, I discovered Wahler is the OEM supplier for Mercedes. Just got this last week, of course the wife doesn't say a word. If the blower motor isn't working, if there is no sound and no air coming from the system, the blower motor may be defective. The electronically controlled thermostat consists of various temperature and load sensors, a computer The thermostat was stuck slightly open as shown in the photo. By Edward Snitkoff - February 28, 2020. This engine is a true workhorse, which is featured on a variety of body styles. A thermostat should remain fully closed until the engine coolant reaches a high temperature, around 85C when it opens and allows flow to the radiator. Thermostat Stuck Open in Car; Stuck Closed in Kitchen! 200 1988 posted by 1908242DLa on Sat Oct 26 21:19 CST 2019 Author: [ PROFILE ] [ EVERY POST ] [ THREADS ] [ BEST POSTS ] [ IGNORE ALL POSTS ] Mar 14, 2018 · Checking For the Signs of a Bad Thermostat. Found out myself when I drove it today. flow restrictions (e. Point is that the sensor is reading fine at low P0128 Volvo Engine Coolant Temperature Below Thermostat Regulating Temperature Possible causes – Leaking or stuck open thermostat– Low engine coolant level– Insufficient warm up time– Faulty engine coolant temperature sensor– Engine coolant temperature sensor harness is open or shorted– Engine coolant temperature sensor circuit poor electrical connection Tech description If cooling Jul 21, 2014 · Auto repairs can be expensive, especially on luxury brands like the Mercedes. You can tell it's open cause the front cooler will get warm. MERCEDES BENZ CLASS V 6382 Vito V plate Cold Air Blows Until Thermostat Opens. A thermostat controls the minimum operating temp of the engine, it closes when the engine is below operating temp to make it heat up faster. When the thermostat is stuck open, coolant will flow through the engine constantly preventing the engine from reaching operating temperature. My ML's thermostat is stuck open I have to drive for about 60mins or Idle for at least 30mins with AC on before it gets to 80°C Funny enough when the scanner says ECT is 70°C I can barely touch the fender. answered Dec 17 '15 at 11:00. Ask your mechanic how he determined that it was stuck closed. These are some common tools used to work on this device. Check your temperature gauge in the car. The hose should Oil Cooler Thermostat Replacement Since the oil cooler thermostat in the oil filter housing is set to open at around 200 degrees it would appear that my thermostat is stuck open. A stuck open or prematurely opening coolant thermostat. overheated yesterday, is my thermostat stuck open? recently acquired '06 golf suddenly overheated yesterday on 9 mile commute to work. You can remove the thermostat and test it in a pan of hot water, it should open just before it  14 Nov 2017 With the thermostat stuck open, however, your engine will have trouble warming up as it starts out circulating cold coolant through the radiator  29 Jan 2019 If you have no coolant in your reservoir the next step is to open the radiator cause of a car that runs OK, but has no heat is a stuck thermostat. If there’s no vacuum, conduct the steps shown below. The thermostat can fail in open or closed position. : Jason, if the T-stat is stuck open, it will throw a code (stored), no CEL light, nothing. Labor costs are estimated between $158 and $200 while parts are priced between $161 and $235. If the temperature still doesn’t change on the outlet side, suspect a stuck shut or clogged heater control valve. Over time though, this thermostat will begin to stick, either open or closed, each with its own set of symptoms. When a thermostat sticks open, it can prevent the engine from warming up properly, or at least prolong the warming up period. The P0597 engine code indicate a fault has occurred with this system where the control voltage is nonexistent. Sometimes the thermostat fails and remains closed. air pockets. Nov 10, 2009 · a thermostat stuck open will not allow the engine to reach operating temperature. Many thermostats have a “jiggle pin” or “check valve” that allows trapped air in the cooling system to pass through the thermostat and be released from the system. The division’s first 3D printed metal spare part, a thermostat cover for older truck models, is now available, as it has passed all stages of the Mercedes-Benz quality assurance process. Evoque Expansion Tank Cap stuck in tank I have taken the cap off and it has left the thermostat part stuck in the top of the tank so I cant put any water in. The Mercedes E350 has been around since 2006. You need to ensure you make a replacement right away when this occurs. The heater core might be clogged. Hi people. When it fails in open position your Mercedes-Benz engine will take a long time to Mercedes-Benz W204 Thermostat Replacement Kit Failure Symptoms. I scanned the car with STAR, and it said the thermostat was stuck open. Normally the engine heats up and the thermostat opens at a specific temperature to allow it to warm up quickly and re The best part is, our Mercedes-Benz 190SL Thermostat products start from as little as $6. Either way, it could damage your vehicle. 6 motor now, with a 72-row Setrab cooler up front and a 3. have tried pulling cable with pliers whist someone is pushing and pulling bonnet but still not opening . So if you  When is a thermostat fully open? Does Stant have a high flow thermostat? Why does my engine overheat? Why doesn't the passenger compartment in my car  Regulate the engine's operating temperature: By opening and closing in response to specific changes in coolant temperature to keep the engine's temperature . First was on a '75 rude triple and cost me an engine overhaul as there was no over temp warning horn. This can cause serious engine damage. Thermostat is permanently open. To see how frequently Mercedes-Benz C-Class problems occur, check out our car reliability stats. The heater will still work if the thermostat is stuck open, it just won't blow as hot of heat as it would otherwise. IMO. It's got two Torx head bolts holding the thing on. 3L. But a bad thermostat is not the only cause for a no heat condition. See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. You'd like REALLY see the difference if it was winter time. many of the time it fairly is a undesirable thermostat, it being caught a million/2 way open. Dec 14, 2019 · For the Mercedes Benz cars, there are three major causes of overheating: thermostat failure; radiator fan failure; and coolant leakage in hoses, radiator or the water pump. Estimate does not include taxes and fees. Everyone I spoke to said: thermostat is stuck open. Let Kent explain how his solutions finder works: "Just select the location of the problem you are experiencing, the chassis designation of your car and a few key Performance Products stocks thermostats for most Mercedes models 1972-on. when you pour coolant in expansion tank air bleed off through the small coolant lines going to expansion tank. You might not need every tool for every procedure. The symptoms for both an open and closed stuck thermostat valve are relatively easy to tell. The valve itself operates through a wax-container element. If you are working on your cooling system, don't overlook this crucial component, replace it today with a Genuine Mercedes-Benz thermostat from ECS Tuning, and keep your cooling system Nov 21, 2009 · no,once they go bad you just replace them if you attempt to use this one over again it will cause over heating problems and possibly cause engine damage,if its bad replace it,they only cost about 15 bucks for the best one made,and that's a fail safe from auto zone,good luck. when refilling the coolant, i followed the directions in the Haynes manul which said something like "turn the engine on with the cap off and let it run until the thermostat opens. The regular replacement of the thermostat will help you maintain the entire working of the car. In the winter the thermostat will keep the motor at operating temperature, If stuck open the mo Once the temperature has been reached, your thermostat will open and allow the flow of coolant through to your radiator and engine. Price each Jan 26, 2019 · Whit a stuck open thermostat coolant wont get a chance to get hot. Yeah, should only be like 20 max for the thermostat and changing it should take all of 20 minutes probably. Learn what does P2181 Porsche Thermostat Stuck Open means, location and how to repair? This fault is stored if the engine is not heated from below 40 °C (104 °F) to over 60 °C (140 °F) after throughput of a defined mass air If the thermostat becomes stuck in the open position, there is continuous flow of coolant into the radiator causing the engine to run cold. When it fails in closed position, your Mercedes engine will overheat. They can figure out what part or repair kit you need. When the engine is cold, no coolant flows through the engine. mercedes thermostat stuck open

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