Low Beam Check Relay - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
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#1 (permalink) Old 08-17-2007, 08:23 AM
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Low Beam Check Relay

I have a 1990 325ic and the low beams do not work (they work with the high beams) I understand this is a multi-filament lamp and the fuses are good so I, again (did this six months ago) suspect the low beam relay. However, there is a low beam check relay as well, and can someone tell me what this does.
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#2 (permalink) Old 08-17-2007, 11:23 PM
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Starmavin is a jewel in the rough Starmavin is a jewel in the rough Starmavin is a jewel in the rough Starmavin is a jewel in the rough
No, stock head lamps are not multi-filament. The low beam check relay activates the warning lamp system above the rear view mirror (if equipped). Your problem sounds like a bad low beam relay or a fault in your combination switch. Unless your head lamps are aftermarket, then you could have other electrical issues.
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#3 (permalink) Old 08-18-2007, 10:22 AM
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Bear is an unknown quantity at this point
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Check Relay

Thank you. I was under the impression that the low beams had dual filiments so they could work as a low beam or in conjunction with the high beams. You may have no low beam but turn on the high beams and the lows work along with the high beams.
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