![]() It may be a good idea to have your coolant system checked at your local garage at your earliest opportunity just to make sure there isn’t an underlying problem. If you don’t notice any leaks and the coolant warning light goes out once you’ve topped up the reservoir, you are alright to continue your journey, although you should keep an eye for the light coming back on again as it may be symptomatic of a problem that may return. Call your local garage or breakdown service for recovery. If you notice any leaks, do not continue your journey. You can then have a look for any obvious leaks in the coolant reservoir or hoses, although these may be extremely hard to see. Once the pressure has subsided, you can remove the cap fully, check the level of the coolant and top up as required. Once the engine has cooled down, slowly open the coolant reservoir cap, allowing any remaining pressure to be released. If you try and open the coolant reservoir or the radiator cap whilst the engine is still hot, you run the risk of allowing hot, pressurised steam to blow out and burn you. Sensor A (G81) P0183 00 168 - Open or Short to Plus MIL ON - Intermittent - Confirmed - Tested Since Memory Clear Freeze Frame: Fault Status: 00000001 Fault Priority: 2 Fault Frequency: 5 Mileage: 167572 km Date: 2033.01.01 Time: 18:49:20 Engine speed: 2445.50 /min Normed load value: 40. It is far more sensible to stop your car and let the engine cool down.īefore you check anything, it’s vitally important that you let the engine cool down for at least thirty minutes first. If you continue to drive, ignoring the warning light, you are submitting your engine to temperatures that could cause permanent damage, resulting in expensive repairs. As we’ve said, the coolant light is telling you that your engine’s temperature is getting too high and this requires your immediate attention. As coolant travels around your engine, there are various places where it can leak from, such as hoses, the water pump or the radiator.įirst and foremost, you should stop your car as soon as it’s safe to do so. These leaks can be a serious problem, as they’re not easily diagnosed and easily fixed. Low coolant levels are usually caused by leaks, either in the reservoir or somewhere in the lines. There may be a floating sensor in your coolant tank that triggers the warning light when the level drops. The most common reason for the coolant light to become illuminated is simply that the coolant level is too low. What causes the coolant warning light to come on? When this process fails, the engine temperature increases and triggers the coolant warning light. In order to keep your engine from welding itself together, coolant is pumped around the engine. The side effect of all these explosions is a huge amount of heat. These explosions move the pistons up and down which, in very simple terms, starts to power your engine. In order for your car to work, a series of explosions are created in the combustion chamber. Steady red coolant light = engine overheating, pull over and stop engine IMMEDIATELY and do not run until the problem has been identified.If the coolant warning light becomes illuminated on your dashboard as you’re driving along, it’s a certain sign that your engine is overheating. ![]() ![]() Check the wiring at the plug on the coolant bottle, if it is chafing on something and shorting to ground, it will turn the light on intermittently. When in doubt.follow the bottle."Īlways read and understand the manual so you know what the car is trying to tell you.įlashing blue coolant light = fault in the coolant monitoring systemįlashing red coolant light = low on coolant Re: Coolant Warning Light (timohara) The light is triggered by either low coolant or overheating. Coolant to water ratio should be 70/30 (60/40 for G12+ I believe) for optimal freeze and boil protection. Your dealer is the best place to purchase the correct coolant. Mixing the two will result in a foamy/gummy/nasty mess in your cooling system. No green, orange or any type of "global" coolant. Use VW or Pentosin G12 or G12+ coolant only. ![]() I added some, but the light is still flashing. So I checked that, and it was a little low. I dont know much about VWs, but I read in the manual that if the light is flashing that it is low on coolant. But if you live in a cold climate, it is best to top-off with coolant/distilled water mix to keep the freeze protection up. My Girlfriends Jetta GL 2.0 has a coolant light that is flashing. Small top-offs with just distilled water are OK. Then the blue light comes on to indicate the vehicle is cold and the light goes back off to indicate its. Top off your coolant reservoir and problem is solved. Answered in 20 minutes by: 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. As you start driving the coolant starts moving and heating up, this causes it to come into contact with the coolant level sensor which makes the flashing stop. What is happening is that when you start the cold engine, the level is low. I already explained this in your thread, I'll copy and paste it below for shellbug.
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