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Missing low coolant level warning
I'm facing strange issue with my X5 4.4i (M62TU). When coolant radiator and expansion tank are empty I don't have any warning message on the dashboard. But when I disconnect plug from coolant sensor in expansion tank, then CHECK COOLANT LEVEL warning is there, so it looks like wiring harness is fine. My coolant expansion tank is new (OE BMW 7514964), I've also replaced coolant sensor (also OE BMW 7553919) but the issue is still there. Do you have an ideas what's wrong, why there is no warning when coolant level is low?
Last edited by scarab; 08-07-2017 at 05:34 PM.
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