You may need to book a coolant change. Then you shut it off the coolant contracts setting off the sensor. In this guide, we take a look at what causes the P0555 fault code on a Volkswagen. ... Vwvortex Com Coolant Light Flashing In Cold Weather 10 C ... Vw Polo Coolant Warning Light Flashing; Share. 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. For a better experience, please enable JavaScript in your browser before proceeding. Can I still drive with my AdBlue® light on? Our mission is to help and empower vehicle owners and DIYers. If you do decide to drive, make sure the engine is not overheating. No. 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. 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. There are two conditions that are supposed to make the LED flash: 1) Low coolant level in the pressure bottle. Pullover as soon as it is safe to do so and turn off the engine. Upon checking the coolant it is between the recommended levels and seems OK. Copyright © 2020 YOUCANIC. Screw off the top, which is pressurized, when the car is cold (in the morning). If you are not sure, see an auto mechanic. JavaScript is disabled. 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. If the level is ok the prongs that sense level are fouled. Alright it was 2 1/2 rupees, I guess I went overboard The newer design has one other change. VW temperature light comes up at the cold start but goes away after a restart. Flashing blue coolant light = fault in the coolant monitoring system. Same solution, drive a block or two, shut down, restart, no blinking light. Your coolant level is low. 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. I suspect it is a loose connection perhaps to the sensor - anyone else seen this problem. 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. They're almost-impossible to clean reasonably, although you can try. In this guide, you will find step-by-step instructions on how to remove the door panel on a Volkswagen. 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. 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. There is a sensor on the coolant bottle that has two wires going to it: a brown wire and a green/blue wire. We show you how to confirm the coolant level and demonstrate the steps of adding antifreeze to your Audi or VW coolant system. Flashing red coolant light = low on coolant. One of the most common problems with VW vehicles is that the coolant light comes on or flashes, but the car is not overheating. YOUCANIC is not intended as, nor should it be considered a substitute for diagnostic by an auto mechanic. Search Fixya. If it is an electrical issue, the car may run fine, but you need to get the car diagnosed first. 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. Mine does it occasionally when cold. Do not touch the cooling fan. So, time to check your coolant level... after an overnight cool-down. This problem is usually caused due to a faulty temperature sensor or a damaged wire harness. 2002 beetle, blue coolant light flashing/blinking - VERY cold today - 2degrees! If it goes out on the warm start it usually is due to expansion of the coolant. 3. You most likely have a low engine coolant level. 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. Also, check the voltage at the sensor connector. The engine is considered cold when: • Engine coolant temperature is below 122°F (50°C). You should touch fluid. If the engine coolant level is low, add engine coolant. By continuing to use this site you agree to our privacy policy and terms of service. On the other hand, if the temperature light is always on (not flashing), it usually means the engine is overheating. The most common reason for the coolant light to become illuminated is simply that the coolant level is too low. It would be easy enough to pour in a cup of water or coolant and water and see if … I think the outside air temp has to be about 40 or below, anything above that and it doesn't come on. Allow the engine to cool down, then check the engine coolant level. As I said, this is only a vague memory. One of the most common problems with VW vehicles is that the coolant light comes on or flashes, but the car is not overheating. You need to do something about diagnosing the cause of the heat. Blue coolant light = engine cold. YOUCANIC is a registered trademark. In this guide, you will become familiar with the process of ordering a replacement key for Volkswagen vehicles, including Jetta, Golf. For the level sensor, if the coolant is full, there should be no resistance as the sensor is in a closed loop. You must log in or register to reply here. 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. If the warning light is illuminated even after startup, it indicates that the car’s computer has detected an issue within the system. In many cases, the sensor is integrated into the coolant reservoir and requires the whole reservoir to be replaced. 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. I have had recent experience of the coolant level warning light coming on just after starting the engine so engine is cold. Did the coolant warning light start flashing? In this guide, you will learn about OBD2 code P1057. If the coolant level is correct, replace the sensor on the engine coolant reservoir. 4 40X40 If the temperature light keeps flashing, check if the cooling fan is spinning by looking at it. If I stop the engine and restart it generally goes away. I restarted and it didn't come on,,restarted all that day and no problems. 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. Cold Weathers. temp light flashing for a cold car? 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 the engine coolant light begins to flash, pull off … Fill it up when its cold and then leave it. 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. If the coolant level in your reservoir is very low, below the “Min” or “Low” … Once it is triggered it stays triggered and the blinking continues even if you correct the coolant level in the tank. 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 . Remove the harness to them and check the sensor for resistance. 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. Sometimes VW temperature light flashes intermittently. Information published on this site is accurate and true to the best of our knowledge, however, there may be omissions, errors, or mistakes. A better experience, please enable JavaScript in your browser before proceeding is driving back to college - - by! Its cold and then leave it help and empower vehicle owners and DIYers please. 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