Pablo, My friend, this has been bothering your car/system for wuite a while. At first you werend straight about your questions intention but I grasped it. The hoses will be almost un-squezzeable except fot the almighty Big D to work em. If you are busting stuff you have a severe problem which could very well be a blown headgasket not completely uncommon to this engine. Good luck with your mechanic and I hope we helped you to understand some of the issues.
95 E34 530I V2.37
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Those who make peaceful revolution impossible will make violent revolution inevitable.
John F. Kennedy