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2010 2011 BMW 5 Series Forum F10 False Low Coolant Warning? |
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02-04-2019, 04:35 PM | #1 |
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False Low Coolant Warning?
This warning light has been on for a while, but I'm not low on coolant. It doesn't leak, my engine temp is fine, and I just replaced the sensor today, but it still says I'm low on coolant.
Has anyone experienced this? Any ideas? Thanks! 2013 528i |
06-02-2019, 06:35 AM | #2 |
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BMW 528IX
I have the similar symptoms on my 2014 528i xdrive. After the warning occurred I have changed the level sensor for coolant and its wirings. No joy. After this I checked the error codes and there was a code for thermostat problem. Now the thermostat is changed and also the fluids are new. Still the low coolant message occurs. I tried also the coolant bleeding processes several times and there shouldn't be any air left.. The message is still on!
I would really appreciate all ideas what to do next.. Last edited by Harmsway; 06-02-2019 at 06:45 AM.. Reason: New info |
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06-03-2019, 06:49 AM | #3 |
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I had same issue and dealer found a micro crack in the coolant expansion tank. New tank and no issues since then, supposedly the crack would only open when coolant was hot and under pressure.
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06-03-2019, 08:46 AM | #4 |
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Did you notice any changes on the fluid level before they changed the expansion tank?
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06-03-2019, 01:45 PM | #5 |
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06-03-2019, 05:32 PM | #7 |
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Altitude definitely has an impact. Only time I ever received a coolant low light was when I was in the rockies.
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