how often should i normally have to refill my coolant tank on mercedes c250 2012
whenever it drops below the minimum cold-fill line.
how much is refill? a pint? a quart? is the thing empty? Anything more than a pint or so per six months is cause for concern
You never should need to add coolant. If your car is using more than a pint a year I would use an anti-leak like Alumaseal.
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