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My car (2017 540i) has thrown low coolant warning twice now in last week alone. Both time, there was no visible coolant leak unedr the car or in the hood. But the main tank was bone dry.
I have topped up with demin water, and it still has colour (cant tell blue or green, without pulling out the coolant). Anyway, taking it back to dealer tomorrow morning for investigation.
[EDIT] Car has 90,000 kms
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