If the coolant level is below the sensor, it can trigger the low coolant warning light. The coolant sensor is located inside the coolant expansion tank.
#BMW LOW COOLANT WARNING LIGHT FULL#
The easy way to tell is if you check your water bottle and the coolant is still full while the coolant light keeps coming on and off.Ĭoolant Sensors are known to wear out over time so it is important to keep an eye on them especially after you added a lot of miles on your BMW. The sensor may be faulty, and it may not be sending a good signal to the computer. If the coolant light comes on and you find out the coolant is still full, then you should check the coolant sensor. The sensor measures the level of the coolant in your expansion tank and sends a signal to the computer to turn on or turn off the light. If the coolant light comes on and you find out the coolant is still full, it means the coolant sensor might be bad. Other causes include low coolant, wrong coolant type, and leak in the cooling system in your BMW car. The number one cause for the coolant light to come on and off on your BMW is a failing coolant sensor, if the light comes on and off and when you check your expansion tank there is coolant then it’s likely the sensor is damaged. BMW Coolant Light Comes On and Off Causes
In this article, I am going to give an answer to what causes a coolant light to come on and off on your BMW so read on!. Once this happens, a lot of people don’t know what they should do or what’s wrong with their vehicle. It seems to be a somewhat common problem that randomly comes on and stays on until it decides to go off. One of the problems that many people have with BMWs is the Coolant light. But, every car has its own little quirks, and BMWs are no different. They handle great, rear-wheel-drive accelerate extremely fast and are very comfortable in every type of environment.
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