If there is a little bit of coolant missing in the cooling system, you should have a quick look if the engine compartment around the radiator is wet or if there is any other liquid. This marking is of course the same everywhere, no matter whether you drive a 116i, 188i, 116d or 120d. There is a mark on the side of the coolant reservoir indicating the maximum (abbreviation: MAX) and minimum (abbreviation: MIN) coolant level that your BMW 1 Series should have. If the on-board computer indicates that the coolant should be topped up, it is advisable to take a direct look in the engine compartment. In general, it should be considered what amount was lost and over what period of time. My 1 series BMW loses coolant – what can I do? Case: Only a little fluid is missing However, BMW still relies on a radiator antifreeze concentrate containing silicate. Meanwhile, the state of coolant technology has advanced, making it possible to dispense with silicate. ![]() In this case, the silicate is an inorganic acid which is used for better corrosion effect. ![]() How Glysantin G48 tells you more about the BMW coolantĪccording to the manufacturer Glysantin, Glysantin G48 consists of both organic and inorganic corrosion additives. So if you buy a coolant for your BMW 1 Series, you can simply choose between the Glysantin G48 and the BMW radiator antifreeze concentrate and get the same product. With Glysantin G48 even the lid color shows directly which color the coolant has. On the BMW coolant bottle there is a transparent stripe on the side, which refers to the blue-green color. What is immediately noticeable is that both colors are identical. BASF also has its own line of coolants – Glysantin.Īs you can see in the further course, Glysantin recommends Glysantin G48 for all BMW models. The concentrate for your BMW 1 Series is produced by the chemical company BASF. Who is actually the manufacturer of BMW coolant?Īnyone who thinks that the BMW brand also means that BMW itself produces its coolant concentrates is unfortunately mistaken. This could be compensated for with a little more concentrate. This would indicate that there is a higher proportion of water than concentrate in the cooling system. Namely, if the coolant in the BMW 1 Series is significantly lighter in color than a 1:1 mixture of concentrate and water. In individual cases, it would even make sense to dispense with the 1:1 mixing ratio and deliberately add more concentrate. ![]() For this reason, a mixture of concentrate and water should always be added to every BMW 1 Series and, of course, other BMW’s as well. The coolant in the cooling system is already mixed and their share of the concentrate should not exceed 60%. When topping up, you should not only refill the pure concentrate. However, care must be taken with the mixing ratio. If the original fluid is already in the radiator, the BMW coolant can be topped up without hesitation. After all, this should be mixed with water in a ratio of 1:1. In addition, the back of the bottle shows the mixing ratio in which the concentrate should be used. On the side of the bottle is a transparent line, through which the color can be identified. Accordingly, a look at the current coolant level in the car gives the same color scheme as that of the BWM coolant. If the original coolant is used for the BMW 1 Series, you rely on a blue-green concentrate, which is also used at the factory.
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