![]() The coolant light on your vehicle’s dashboard could illuminate for the following reasons: Coolant is Low. The electric fan does not work, but its not been a problem as I live in a fairly cold climate. Reasons Coolant Light Might be Illuminated. Also there is no sighn of overheating, the needle stays in the middle as usual. the coolant levels seem to be fine, and its been less than 12 months since i had it changed. Instead its the opposite.Ĭar has 185,000 miles and the radiator and expansion tank have been replaced fairly recently. if i turn up the heat in my car, the coolant light comes on its fine on 16 degrees which was fine in summer, but now i cant even clear my windows without this light coming on. As the engine comes to temperature, the coolant expands and the light should go off (unless the coolant is really low). I assume that the light would come on immediately when the engine is cold if the level is actually low. This is the opposite of what I would expect. This is a blue-colored coolant and is the most common recommendation you will find online since most cars on the road are compatible with it. Up until 2018, the BMW recommended the G48 coolant. ![]() so I filled it up to the very top, and the next morning the light came on again. As we recommended above, the best coolant to use for your car is the genuine BMW coolant. I checked the coolant level and it was bone dry. No leaks and the system has been pressure tested. I drive a BMW Z4 2003 with 93k miles and I noticed for the first time the other day the coolant fill up light go on when I was driving. If your BMW coolant light has illuminated, it is crucial that you allow its engine to fully cool before opening its cap and opening its expansion tank (typically located on the left side of engine bay) this will prevent injuries due to hot coolant escaping. I have had no overheating problems (lately). The temperature holds completely steady the entire trip. The coolant light remains off while the car comes up to temperature but comes on during the highway phase of the trip and goes back off when I return to city driving at the end of the trip. Here's an example of how the coolant level light behaves: My daily commute includes about 5-10 minutes of city driving at each end with highway in between - Total of about 25 miles/35 minutes. The coolant level in the expansion tank looks fine when I check it cold (dip stick floats at the top of its range - about 1-2 inches above the level of the fill opening - actually I am concerned that I have over-filled). So, that’s the reason why you need a special coolant for your BMW.I've been puzzled by a low coolant light that comes on intermittently on my 2000 323i. Some of the above functions are also achievable with the conventional coolants, but not all. Do cool down the engine to prevent its overheating, etc. BMW coolants are concentrated solutions and should be mixed with distilled water before adding them to your cooling system.Prevent the engine from freezing in frigid winter months,.Protect the metallic parts from corrosion or their build-up,.It is because such coolant tends to serve several useful functions in the vehicle. Yes, all BMW vehicles need a special coolant or antifreeze. It enables you to dilute the coolant or antifreeze depending upon the environmental conditions. Anyone have some insight This is the low coolant warning. The main culprits of such situations are the chemicals like phosphate and nitrite mixed in conventional coolants.Īt last, the coolant made for BMW may or may not come pre-diluted. Swapped out coolant resivor sensor 2 times wich is the only sensor the car has for coolant levels ,and i also swapped out coolant resivor 2 times as well still getting annoying warning dings everytime i turn my car on and off. In worst situations, prolonged usage of a regular coolant may compel you to install a new engine in your BMW car. ![]() Therefore, the coolants designed explicitly for such vehicles help prevent rusting or cause other harm like damage to the cylinder gasket, water pump, and radiator.
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