5-Series (E12,E28, E34, E39, E60)Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)
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I have an E39 530D and am havin problems with the car loosin boost and goin into a sort of "limpmode"car drive fine until 60-90mph looses boost and stay dead then..sometimes after a drive power will come back but to be soon lost again..i have already replaced the boost pressure sensor and air flow meter????all the vacum pipes i have checked and seem ok any ideas????thanks guys
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