05-02-2021, 04:47 PM | #1 |
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N55 coolant colour
Hello everyone !
Today I have checked my coolant on n55. Take a white paper and I saw that it’s a little bit brown. I think that it should be brown at any way. What should I check ? And where could be the problem |
05-02-2021, 06:52 PM | #2 | |
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is there oil in it?
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05-02-2021, 08:39 PM | #4 |
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BMW coolant is blue. Even aftermarket BMW coolant is blue.
If you had oil in the coolant, you would see see it on the coolant cap and in the coolant reservoir as oil rises to the top. Brown coolant suggests that is hasn't been flushed in a long time or that it was in contact with rust.
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05-03-2021, 07:14 PM | #5 |
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Has your system been flushed? Mine is the same MY (2013) with 2 fllushes over its life so far with any indication of rust occurring. Fluid is a Blue as new.
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