The OBC bulbs on my 1992 525i only last about 3 weeks or so, then burn out. I purchased the last 3 at the dealership. The display is nice and bright before they burn out. Any idea on why this is happening or how to fix? Thanks!
Are you sure that you are getting the correct bulbs?
Looks like it should be BMW part number 65 81 1 374 495 and there are four of them in there.
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