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)
There is no horn relay that I am aware of. You need to take off the air bag from the steering wheel to get to the little metal (tab) contact piece that engages the horn. Don't forget to remove the battery neg terminal so you don't throw a SRS code that you would have to take to BMW to clear. Or did you already fix it?
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