Quote:
Originally Posted by Tom K.
For a contrary experience, I've only had to add coolant once to a BMW in over 10 years which includes 5 cars with a total of more than 200,000 miles.
I once got a coolant warning after parking my Z4 on an incline, but it was fine on level ground.
Tom
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what you've said it doesn't confirm that your cars didn't lose coolant. you've only averaged 40k miles per car, so I can see not having to add coolant in those miles. Cars can lose a liter or more before the low coolant warning comes on, so not triggering a low coolant warning doesn't mean it doesn't lose coolant. Sounds like you just don't check it considering when you got a warning you just parked it level so the warning would go away.
my point is that losing coolant isn't the sign of a problem if it doesn't lose too much.