![]() Got a car problem? Get in touch with a trusted local mechanic. If you don’t get the problem fixed, it is likely to happen again and, at some point, could cause serious damage.įor more tips and advice, follow Trust A Garage on Facebook or Twitter. Remember that topping up with water is a quick fix that will get you safely to a nearby garage. This should allow you to get to a nearby garage safely, without your engine overheating. If the coolant levels are low, you can create a short-term fix by topping it up with water. If the engine has cooled and you are able to safely remove the radiator cap, check the fluid levels in the radiator. If you get an 'Engine Coolant Low' message on a 1997-2005 XK8/XKR you can test your. ![]() If your engine still feels hot, do not attempt to remove the radiator cap wait for longer, or call for help from a mobile mechanic. Simple Continuity test on a new coolant reservoir with float and sensor. When you remove the cap, the water may well start boiling and release steam, so it is very important that your hand is covered to stop nasty scalding. The cap itself is designed to pressurise the coolant tank so that the water in it takes longer to boil. Once the engine has cooled, you can use a cloth to open the radiator cap. If your coolant warning light illuminates while you are driving, safely pull over as soon as you can and turn the engine off for at least half an hour to let it cool down. If your coolant is low you probably have a leak, so you need to contact a garage as soon as possible. Your coolant warning light has come on, or has stayed on once you have started the car, because either your coolant levels are low, or your coolant is overheating. This is a sign that, for whatever reason, the coolant is unable to reduce the engine temperature enough to make it safe. The light will come on when the coolant is too hot. This video will go more in detail about what causes this low coolant. Your vehicle computer system monitors the heat and levels of the coolant in your engine, to make sure that it can always control the temperature of the engine. A lot of BMW owners face the dreaded 'Engine Coolant Low' alert coming on the dashboard. Your coolant warning light will come on for a couple of seconds when you start your vehicle, before going out. 2010 2011 BMW 5 Series Forum F10 BMW 5-Series (F10) Forums General 5-Series Sedan and Wagon (F10 / F11) Forum Coolant Low light Post Reply Thread Tools: Search this Thread 09-26-2021, 04:25 PM 1: Trece76. Your vehicle’s cooling system helps to control this heat, by pumping coolant throughout the engine. While these explosions are controlled, they still make a huge amount of heat. This week, we take a look at your coolant light: when and why it comes on, and what you can do about it.Ĭombustion engines create power through combustion - that is, a series of controlled explosions. Warning lights are there to do just that: warn you when there could be a problem with your car. If you have fixed this problem already, let me know what/how you did it.Dashboard lights are such a familiar sight, particularly in more modern cars, that it is easy to ignore them until it is too late. When the magnetic float works properly, it should float to the coolant level in which case you should not see the low coolant warning light on.Īt any rate, I am about to purchase a new expansion tank, since the magnetic float is shut in my expansion tank. So, my sensor thinks that my coolant level is low. ![]() In my case, this magnetic float no longer floats any more and currently sits on the bottom of the expansion tank. If the sensor probe is brittle and damaged, you will most likely need a new sensor.Ģ) Inside the expansion tank, there is a magnetic float that works with your sensor unit to send a signal if you have enough coolant in the expansion tank. Lift up expansion tank to expose the sensor units (one on the left side is coolant level sensor) and remove the sensor for close inspection. Thininking that I had a defective coolant level sensor, bought a brand-new one, replaced it, but I still have the low coolant light on.īased on what I've learned so far, I have 2 advices for you:ġ) You might have a defective coolant level sensor. I have exactly the same problem with my 1996 850 Turbo.
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