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Low coolant level warning light8/25/2023 There could be a plethora of reasons as to why your low coolant light comes on, as the system in which it runs is exceptionally complex. There is no confusing a leak, as coolant is an important component to maintainĪ healthy engine. Manufacturers purposely make the coolant vibrant colors so This transfer will allow the coolant to sit stationary inside of the radiator in front of the outward facing vents to be cooled by the air as you drive your vehicle.Īvoid Breakdowns with Included Routine Maintenance!īecause the composition of engine coolant is comprised of Since the engine coolant becomes hot, it is transferred to a radiator located at the front of the vehicle. This is where the engine coolant, a water-based solution, comes in handy to absorb the heat from the engine. Since so much heat is dispersed when operating car engines, they require a way of cooling down, or else the internal engines will melt from the inside out. This heat is either expelled through the exhaust while some remains inside the engine block. This energy is divided between allowing the vehicle to accelerate forward and the remainder of the energy is converted to heat. When vehicles are actively operating, they tend to create a large amount of energy by burning up the gas in the fuel tank. The coolant is a mixture of anti-freeze and water. What is Engine Coolant / What is Radiator CoolantĮngine Coolant is a fluid that absorbs the heat within the engine and then travels to the radiator to cool. What Is the Importance of the Engineīefore addressing the reasons for your low coolant light to illuminate, it is important to understand exactly what engine coolant is and the importance of keeping it filled in your vehicle. Continually driving with a low coolant light on could cause severe damage to the internals of the engine. When the light comes on there may be no immediate danger that would require you to abandon your vehicle, but stopping your car is heavily recommended. This part often gets "stuck" and to me only known remedy is reservoir replacement.If there is any light you should be attentive of it is the low coolant light for sure. One part is float bar that goes up and down to show level when you remove the cap, other part is float that give sensor reading because sensor doesn't get in direct contact with the coolant at all. Level inside the reservoir is two part system. ![]() I poured some water from the side of the tank and watched it flow right to that very spot. Mine is leaking decently from the seam and corner.Īt first I was nervous that my turbo coolant lines were leaking since I saw significant pooling on the subframe below the turbo. If you see white marks and see coolant, you'll have your answer. Clean the side of the tank and go for a drive. You'll see dried coolant on the side of the tank and turbo intake, and possibly pooled coolant on the frame and subframe. Look around the coolant reservoir and on the frame. I thought the same thing so I did the bleeding procedure and absolutely nothing changed. Wouldn't running the water pumps bleed procedure solve trapped air pockets as well? Or do we have to completely drain it all? Moral of story is you probably have trapped air bubbles and by draining the system you can fix your problem for under $30 ![]() After doing this I filled up my coolant tank with 2 gallons of distilled water only to flush out the system just to be careful which got a lot more blue coolant out of the system and once I drained that I installed the 50/50 mix and drove around till my car was hot and then I let the car cool off for a few hours and I opened the bleeder screw and a lot of air came out so I filled the coolant up to the line again where it's supposed to be and now I have no more low coolant light. After getting that mixed I lifted the front of my car on a Jack and removed my front innercooler (extremely easy to do) and then unscrewed the screw on the bottom of the radiator which drained about 70% of the coolant so then I disconnected a hose near the radiator plug (forgot the name of it) which got the other 30% of coolant out. I did a 50/50 mix (one gallon of coolant and one gallon of distilled water in a 5 gallon bucket and then mixed it together. After checking my coolant level it was filled exactly where it was supposed to be but I continuously was having a low coolant message pop up on my car so I thought it was the sensor in the bottom of the coolant tank but after replacing the coolant sensor it still remained so I went ahead and decided to buy factory blue bmw coolant with 3 gallons of distilled water. My 2011 335i had a low coolant light singe I got it from the dealership.
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