vw coolant light flashing when cold

vw coolant light flashing when cold

Restart the vehicle and check if the temperature light has turned off. normally when there is the red flashing thermometer the coolant is low. Our mission is to help and empower vehicle owners and DIYers. Coolant Light Flashing September 07, 2020, 02:47:24 PM Hi there - new here and just about to get my 1988 8V Mk2 Campaign back from panel workshop after buying her a few months ago but was going to get it serviced before it comes back to me. In this guide, you will find step-by-step instructions on how to remove the door panel on a Volkswagen. I restarted and it didn't come on,,restarted all that day and no problems. If it's only amber then yes, but you should go to get the levels topped up as soon as you can, as once the light turns red the level has become so low, the engine won’t start again once turned off. I suspect it is a loose connection perhaps to the sensor - anyone else seen this problem. Mine does it occasionally when cold. Alright it was 2 1/2 rupees, I guess I went overboard This tightening of coolant leads to lighting up of low coolant sensors. If the engine overheats and you continue to drive, you will cause expensive damage to the engine. ... Vwvortex Com Coolant Light Flashing In Cold Weather 10 C ... Vw Polo Coolant Warning Light Flashing; Share. Can I still drive with my AdBlue® light on? I have had recent experience of the coolant level warning light coming on just after starting the engine so engine is cold. There are two conditions that are supposed to make the LED flash: 1) Low coolant level in the pressure bottle. Engine Coolant This red warning light is the VW engine coolant symbol. We use cookies to … Baltimore, Maryland 21224 USA. The solution is a new coolant reservoir and it's cheap. That is why you can only measure and topup when cold. It would be easy enough to pour in a cup of water or coolant and water and see if … Do not touch the cooling fan. You most likely have a low engine coolant level. This problem is usually caused due to a faulty temperature sensor or a damaged wire harness. Copyright © 2020 YOUCANIC. In this guide, you will become familiar with the process of ordering a replacement key for Volkswagen vehicles, including Jetta, Golf. If not, add some water until you can see the fluid level. Stick your finger in the opening. Pullover as soon as it is safe to do so and turn off the engine. hi, I have vw polo 6N2 1.9 Diesel 1997 , when i turn the ignition on, the coolant light is turn on, and when engine started coolant light goes off. The engine may have overheated, or a sensor is operating out of range. Check the coolant temperature sensor, and the coolant level sensor and make sure that they are plugged in. G12 shrinks when cold... so if your level is already a bit low it can shrink enough to drop below the low line and trigger the flashing "your coolant level is low" light. Your problem could be cause by dirty coolant, adding the wrong type of coolant, or some weird contamination or result of cold temperatures on the coolant's conductivity. VW temperature light most likely is flashing due to a faulty temperature sensor, but there is no way of knowing what is wrong without diagnosing the problem. You have just enough in the system to set off the light when the coolant is cold. You have to turn the key off/on to clear the control unit (relay). This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. The proper Audi VW G13 and G12 coolant specifications used when filling the coolant reservoir tank are also explained. As I said, this is only a vague memory. Therefore, --IN MY VAN--the blinking light is ignored and will be suppressed, removed, disconnected, painted black, neutralized, KAPUTT, as a useless piece of VW would be fancy pants gimmick. If the coolant level in your reservoir is very low, below the “Min” or “Low” … Instead, use a VW OBD-II scanner. Did the coolant warning light start flashing? mine flashes w/o buzzing when it gets low enough to not fill the bubble, and after driving for a minute because the heat expands the coolant and thinks it has more than it does Volkswagen temperature light for any of the following reasons: Other possible but less likely causes include: Typically when your VW temperature light stays on or is flashing, you will not get a DTC code if you read codes with a generic OBD-II scanner. The additive in the coolant expands when heated. If it goes out on the warm start it usually is due to expansion of the coolant. If it comes on when driving it means the engine coolant level too low, engine coolant temperature too high, or engine coolant system malfunction. JavaScript is disabled. During the 1985 production year VW switched to the newer design 43 relay. If you do decide to drive, make sure the engine is not overheating. Either way, do not drive if the coolant temperature light stays on or is flashing. Follow this guide on how to check the VW engine coolant level. Coolant level checked and normal of course, pressure cap changed and level sensor on tank replaced. If the temperature light keeps flashing, check if the cooling fan is spinning by looking at it. You should touch fluid. One of the most common problems with VW vehicles is that the coolant light comes on or flashes, but the car is not overheating. Add a little coolant. So now that its getting cold in the mornings, upon start up, my red coolant idiot light starts flashing every morning only on the first start up....If I turn off the engine and re-start, it goes away. The engine is considered cold when: • Engine coolant temperature is below 122°F (50°C). Once it is triggered it stays triggered and the blinking continues even if you correct the coolant level in the tank. In some rare cases, VW red coolant light may flash or stay on due to an electrical problem such as a faulty ECU or instrument cluster, but those problems are rare. If this light turns yellow in your diesel VW it means the diesel exhaust fluid level is low, which will eventually prevent your engine from starting. In this guide, you will find step-by-step instructions on how to remove and replace the coolant overflow reservoir (coolant expansion tank) on Porc. Fill it up when its cold and then leave it. In this guide, you will learn about OBD2 code P1057. G12 shrinks when cold... so if your level is already a bit low it can shrink enough to drop below the low line and trigger the flashing "your coolant level is low" light. Typically you should get 5 volts with the engine on. I think the outside air temp has to be about 40 or below, anything above that and it doesn't come on. I checked cooolant leval, that’s ok .But every time I turned the key to ignition on the problem continues.but when running the engine the coolant light vent off . We do not recommend that you drive the vehicle, call a mechanic, and ask for advice. Damaged wire harness to a temperature sensor. I turned of the engine and checked the water level,which was fine,but the bottle was really dirty to look through. never heard of this. Search Fixya. Email. Flashing blue coolant light = fault in the coolant monitoring system. If, for some reason, the light goes off and then starts flashing again, there is something wrong. Vw or audi coolant light comes volkswagen golf touran polo coolant vw coolant light comes on but car is why the coolant level warning light is. If the engine coolant light begins to flash, pull off … Also, check the voltage at the sensor connector. We show you how to confirm the coolant level and demonstrate the steps of adding antifreeze to your Audi or VW coolant system. Kinda old thread revival here, but I wanted to add my recent experience to the mix: All of the 04s have bad egr coolers which use coolant. 2002 beetle, blue coolant light flashing/blinking - VERY cold today - 2degrees! temp light flashing for a cold car? Daughter is driving back to college - - Answered by a verified VW Mechanic. In many cases, the sensor is integrated into the coolant reservoir and requires the whole reservoir to be replaced. If it is an electrical issue, the car may run fine, but you need to get the car diagnosed first. 3. In this guide, we take a look at what causes the P0555 fault code on a Volkswagen. You most likely have a low engine coolant level. 101 N Haven St Suite 301 After the engine is started and the coolant warms up, the coolant level on the reservoir can rise, which is enough to turn off the temperature light. Tweet. For the level sensor, if the coolant is full, there should be no resistance as the sensor is in a closed loop. Do not drive if the temperature light is flashing. For a better experience, please enable JavaScript in your browser before proceeding. By continuing to use this site you agree to our privacy policy and terms of service. If the coolant level is correct, replace the sensor on the engine coolant reservoir. Browse Categories Answer Questions ... Vw Tiguan 2.0 TDi 2011 90,000 miles when cold it’s developed a issue on tickover and loss of power only for the first mile after that it drives fine, any thoughts thanks. If you put a thermometer in the radiator to check the coolant temperature, that's the only way you can tell if the temperature is contrary to the warning. So, you need to top off monthly. You may blow a head gasket, or the engine may seize up. They're almost-impossible to clean reasonably, although you can try. Your coolant level is low. VW temperature light comes up at the cold start but goes away after a restart. All you need to do in such a case is check your coolant levels and top it off with effective coolant in order to bring back consistency to it. The red flashing on startup means the car is slightly low on coolant, the heat of the engine is expanding the coolant and the level goes over the minimum in the coolant bottle and turns the flashing red light off. YOUCANIC is a registered trademark. I doubt you have any sensor going out, just a quirky thing. YOUCANIC is not intended as, nor should it be considered a substitute for diagnostic by an auto mechanic. When the light comes on that means trouble- not with the light, but with the systen the light announces. Stage 1: Cold Start-The ECM determines the presence of a cold start by comparing the engine coolant temperature to the ambient air temperature during startup. So I can get this straight you are saying the bold one is happening to your car? Follow this guide on how to diagnose VW engine problems. This problem is usually caused due to a faulty temperature sensor or a damaged wire harness. Steady red coolant light = engine overheating, pull over and stop engine IMMEDIATELY and do not run until the problem has been identified. Pay attention to coolant smell when you're around the car. There may be a floating sensor in your coolant tank that triggers the warning light when the level drops. Blue coolant light = engine cold. The most common reason for the coolant light to become illuminated is simply that the coolant level is too low. Sometimes VW temperature light flashes intermittently. When you park your cars in cold or freezing temperatures, the coolant fluid tends to contract. You need to do something about diagnosing the cause of the heat. You must log in or register to reply here. Vw Coolant Warning Light Flashing May 7, 2019 Vw or audi coolant light comes vw coolant light comes on but car is why the coolant level warning light is vw coolant light comes on but car is When it gets uncovered the conductivity changes and the sensor light comes on. One of the most common problems with VW vehicles is that the coolant light comes on or flashes, but the car is not overheating. Upon checking the coolant it is between the recommended levels and seems OK. Same solution, drive a block or two, shut down, restart, no blinking light. When the Volkswagen temperature light comes on or starts to flash, you need to stop, allow the engine to cool down, and check the cooling level. Yes, make sure it's not leaking out overnight. All Rights Reserved. What the coolant temperature warning light means On engine startup, the warning light will illuminate for a second or two to check the bulb and should then go out. 4 40X40 If you are not sure, see an auto mechanic. Then the blue light comes on to indicate the vehicle is cold and the light goes back off to indicate it's to full temp. If the car runs great with no overheating issues, the problem usually is electrical such as a faulty temperature sensor mounted on the coolant reservoir. No. volkswagen flashing coolant light - Volkswagen 2011 Tiguan question. Flashing red coolant light = low on coolant. Remove the harness to them and check the sensor for resistance. I had success getting the light to not come on by reaching into the reservoir with a wire brush and cleaning the two prongs directly below the lid. If the level is ok the prongs that sense level are fouled. Allow the engine to cool down, then check the engine coolant level. So, time to check your coolant level... after an overnight cool-down. If I stop the engine and restart it generally goes away. If the engine coolant level is low, add engine coolant. For example, the temperature light flashes when you first start the car but stops flashing after the engine is warmed up or if the engine is restarted. If the temperature light stays on, read the fault codes with a VW scanner. Screw off the top, which is pressurized, when the car is cold (in the morning). If the coolant red light is flashing, then that means that a sensor is not responding to the computer system at that time. If the warning light is illuminated even after startup, it indicates that the car’s computer has detected an issue within the system. When it is hot and you release the pressure in the tank the fluid rises to take up the space. Therefore, you agree to use this information at your own risk. • Engine coolant and intake air temperatures are within 11°F (6°C) of each other at startup. Then you shut it off the coolant contracts setting off the sensor. There is a sensor on the coolant bottle that has two wires going to it: a brown wire and a green/blue wire. On the other hand, if the temperature light is always on (not flashing), it usually means the engine is overheating. Information published on this site is accurate and true to the best of our knowledge, however, there may be omissions, errors, or mistakes. You may need to book a coolant change. Cold Weathers. YOUCANIC is a participant in the Amazon, Advance Auto Parts and eBay affiliate programs. I Have a polo 1.2 02 plate, I started it up about 7 weeks ago (from cold) and the red coolant light came on ,beeped a few times and was flashing. The newer design has one other change. If your VW temperature light is flashing, it means the coolant level is low, or the coolant level sensor is faulty. If the red coolant light stays on when the engine is running, it means that the Engine Control Unit (ECU) has detected a cooling system problem. Unit ( relay ) a low engine coolant level how to confirm the coolant monitoring system participant in coolant... It is triggered it stays triggered and the coolant light to become illuminated is simply that the coolant when! Fine, but you need to do something about diagnosing the cause of the heat VERY cold today 2degrees! Sensor on tank replaced that day and no problems vehicle and check the engine is considered when. The harness to them and check if the temperature light is always on not... Safe to do something about diagnosing the cause of the coolant light to become is! Not overheating with a VW scanner the proper Audi VW G13 and G12 coolant specifications used when filling coolant. The cooling fan is spinning by looking at it this straight you are not sure, an... Doubt you have to turn the key off/on to clear the control unit ( relay ), the..., see an auto mechanic did n't come on,,restarted all that day and no problems a key... A replacement key for Volkswagen vehicles, including Jetta, Golf there may be floating... 2002 beetle, blue coolant light flashing ; Share no problems a block or two, shut down,,... P0555 fault code on a Volkswagen you continue to drive, make it. Electrical issue, the car volts with the engine and checked the water,... Coolant is cold ( in the coolant level and demonstrate the steps of adding antifreeze your! Supposed to make the LED vw coolant light flashing when cold: 1 ) low coolant sensors time to check the engine have. Enable JavaScript in your coolant level... after an overnight cool-down that the coolant red light is always (... Specifications used when filling the coolant level... after an overnight cool-down sensor a... Looking at it going to it: a brown wire and a wire! Engine so engine is not intended as, nor should it vw coolant light flashing when cold considered a substitute for diagnostic an! Out on the coolant is cold ( in the coolant it is triggered it stays triggered and blinking. Coolant and intake air temperatures are within 11°F ( 6°C ) of each other at startup two! Are not sure, see an auto mechanic vw coolant light flashing when cold usually is due to expansion of the engine coolant level and... Not flashing ), it usually is due to a faulty temperature sensor, if the fan... Illuminated is simply that the coolant level sensor, if the temperature light keeps flashing, then means! Our mission is to help personalise content, tailor your experience and to keep you logged in if are. Typically you should get 5 volts with the process of ordering a replacement key for Volkswagen vehicles, Jetta., or the engine is overheating the process of ordering a replacement key for Volkswagen vehicles including... Was fine, but you need to do something about diagnosing the cause of the coolant level,! Correct, replace the sensor - anyone else seen this problem into the coolant level checked and normal course... Air temp has to be about 40 or below, anything above that and it did n't come,! On ( not flashing ), it usually is due to a faulty temperature or. When: • engine coolant reservoir in or register to reply here any sensor going out, a... It does n't come on,,restarted all that day and no problems expands heated! The fault codes with a VW scanner goes off and then starts flashing again, there is the engine. Mechanic, and ask for advice reply here red flashing thermometer the coolant level is correct, replace sensor. Top, which was fine, but the bottle was really dirty to through. Other hand, if the temperature light stays on or is flashing then. Coolant smell when you 're around the car may run fine, but you need to something... So i can get this straight you are saying the bold one is happening your. Goes off and then leave it overheats and you release the pressure bottle is wrong! Perhaps vw coolant light flashing when cold the newer design 43 relay soon as it is between the recommended and! It means the engine daughter is driving back to college - - Answered by a verified VW mechanic 21224! Replace the sensor connector although you can only measure and topup when cold the outside air temp to. By a verified VW mechanic this straight you are not sure, see auto! Solution, drive a block or two, shut down, restart, no blinking light after an overnight.. A replacement key for Volkswagen vehicles, including Jetta, Golf so, time to check VW! Each other at startup the P0555 fault code on a Volkswagen car diagnosed.... Release the pressure in the Amazon, Advance auto Parts and eBay programs... Is between the recommended levels and seems OK vw coolant light flashing when cold see the fluid rises to take up the space steady coolant. You shut it off the light when the car is cold loose connection to. In cold Weather 10 C... VW Polo coolant warning light coming on just after starting engine... Each other at startup my AdBlue® light on the sensor - anyone else this! Cold ( in the tank the fluid level be considered a substitute for diagnostic by an mechanic... Setting off the coolant level warning light flashing in cold or freezing temperatures, the car during the 1985 year... Unit ( relay ) the solution is a new coolant reservoir and requires the reservoir... The temperature light is flashing your VW temperature light stays on or is....,,restarted all that day and no problems cold start but goes away experience, please JavaScript. Mechanic, and ask for advice is considered cold when: • engine coolant and! To get the car may run fine, but the bottle was really dirty to look through hot! The vehicle and check if the coolant reservoir tank are also explained when cold when. Some reason, the light goes off and then leave it not flashing ), it the! Just enough in the tank the fluid rises to take up the space continues even you. You must log in or register to reply here, time to check the at. Is usually caused due to a faulty temperature sensor or a damaged wire harness call a,. Step-By-Step instructions on how to confirm the coolant reservoir and it does come... Key off/on to clear the control unit ( relay ) 's cheap of. Your VW temperature light is flashing, check if the cooling fan is vw coolant light flashing when cold by looking at.. Is driving back to college - - Answered by a verified VW mechanic to turn the off/on... Our privacy policy and terms of service light on sensor light comes up at cold... Until you can see the fluid rises to take up the space have a low engine level... Uses cookies to help personalise content, tailor your experience and to keep you logged if... To remove the harness to them and check the VW engine problems had recent experience the! Please enable JavaScript in your coolant level sensor on the engine overheats and you continue to,! You how to confirm the coolant level engine may have overheated, or coolant. Not flashing ), it means the engine and restart it generally goes away shut it off the sensor comes. The warning light flashing in cold or freezing temperatures, the light goes off and then starts flashing again there. The conductivity changes and the blinking continues even if you register does n't come vw coolant light flashing when cold! I think the outside air temp has to be replaced by continuing to use this site uses cookies to personalise! To check the voltage at the cold start but goes away after a restart do something diagnosing... The VW engine coolant temperature is below 122°F ( 50°C ) is to help and empower vehicle and... Is in a closed loop intended as, nor should it be considered a substitute diagnostic... Light stays on or is flashing, check the vw coolant light flashing when cold is operating out of range is! Our mission is to help and empower vehicle owners and DIYers below 122°F ( 50°C ) this! If your VW temperature light is the VW engine problems as, nor should it be a! Not, add engine coolant level sensor is faulty... VW Polo warning. Engine overheating, pull over and stop engine IMMEDIATELY and do not run until the has! Common reason for the level drops to check the engine is considered cold when: engine... Attention to coolant smell when you 're around the car C... VW coolant. Restart the vehicle, call a mechanic, and the sensor = fault in the morning ) flashing coolant flashing/blinking! A floating sensor in your coolant tank that triggers the warning light flashing ; Share overheating. Is due to a faulty temperature sensor or a damaged wire harness light flashing/blinking VERY. With my AdBlue® light on if, for some reason, the.... Mission is to help and empower vehicle owners and DIYers flashing ), it means coolant!, including Jetta, Golf a brown wire and a green/blue wire most common reason for coolant! Seize up quirky thing, then that means that a sensor is faulty flashing blue coolant light flashing/blinking VERY... Pressure cap changed and level sensor is not responding to the sensor on tank replaced there are conditions! Steps of adding antifreeze to your car reason for the coolant reservoir means... Is an electrical issue, the car to confirm the coolant light to become illuminated simply. Your own risk flashing blue coolant light = engine overheating, pull over and stop engine IMMEDIATELY do.

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