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BMW 5-Series (G30) Forum Mechanical Maintenance - Break-in, Oil, Fluids, Servicing Low coolant

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      12-01-2019, 03:19 PM   #23
AP
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Mine was down to the reservoirs leaking. Replaced a few weeks ago under warranty. I also had no puddle under car but there was a light coloured residue that could be seen on the metalwork below the reservoirs if you looked carefully with a torch
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      12-03-2019, 08:10 AM   #24
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Mine was down to the reservoirs leaking. Replaced a few weeks ago under warranty. I also had no puddle under car but there was a light coloured residue that could be seen on the metalwork below the reservoirs if you looked carefully with a torch
let me check next time as well
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      12-03-2019, 10:45 AM   #25
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Originally Posted by julioccuk View Post
Can you guys recommend any particular coolant brand/spec I can use on mine 2017 530i?

Got the warning of low coolant which went away but I wanted to fill it up.

Thanks
Factory fluid; I see no point in mixing another brand or formula since the majority of it is what the factory installed. Depending on your climate, distilled water may be all you need.
Agreed use BMW coolant only or distilled water to top off. Ideally a mix of 50/50. I had the same issue low coolant in the main reservoir at 7500 miles but the aux was fine.
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      12-03-2019, 02:13 PM   #26
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Agreed use BMW coolant only or distilled water to top off. Ideally a mix of 50/50. I had the same issue low coolant in the main reservoir at 7500 miles but the aux was fine.
not if your dealer wouldn't flush it and you can't get a tow truck, I did have to mix some other suppose BMW qualified ones as well (per my dealer's tech they took a look and said it was fine...)
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