Quote:
Originally Posted by ForcedInduction
I say its normal. The cooling system will hold some pressure for a long time. Even after 2 days of not running, my upper hose will still have some pressure.
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It is not normal on vehicles with an expansion tank. A properly operating system will have a slight vacuum when the cap of the expansion tank is removed. If you're running a 240D without any expansion tank, your scenario can be considered normal.