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)
normally you can just remove valve clean it i recommend acarb cleaner wynns or similar carbon tetrochloride based cleaner i.e electrical contact cleaner then lubricate lightly with brake fluid i do not reccomend wd 40 as leaves a residue which can cause further problems this problem with i.c.vs is quite commom and not just bmws see bimmerforums.com excellent article on cleaning with all photos to help you,regards david u.k member e39 523i.
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