Hey feel free on fixya!!!!!!
Does your car use 1 bulb for head lamp (H4) or they are separate head and bright, come back to me
Maybe something wrong with multifunction switch?
SOURCE: 1990 525i bmw headlights
Check the wiring in the lights it may be poor construction or mis care that has madr a wire become looseand only rarely turn on
SOURCE: high beams wont turn on.
First place to start is with headlight switch. I did have a case many years ago when both high beams were blown out at once, but this is rare. When you have the headlight switch out, jump power from te low beams to the high beam contacts. If high beams come on, replace switch.
Bill
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