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Message: <blockquote data-quote="astroboy" data-source="post: 252074" data-attributes="member: 4527">My oldman's 1994 Volvo 940 also had similar problem. Warning indicator lit intermittently during the day but all bulbs seem working. So I bought him some bulbs to test out. After replacing the brake light bulb, the warning indicator no longer appear.As for Juan's case, I suspect the E92 ECU logs the bulb failure and require a manual reset to clear the fault code. Bulb's filament sometime does not break cleanly. Weaken filament will first demonstrate intermittent failure before the filament falls apart. So once the ECU detected failure, despite intermittent, it logs the fault code.This is what I think.But that doesn't explain why all 3 fail at the same time. The E36 generation of BMW has a problematic rear lights bulb connector assembly and frequent cause fail conductivity problem. Something to do with the design of the light fittings. The newer version lights dunno la.. haven't examine mine.. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin    :D" loading="lazy" data-shortname=":D" />Have u check the bulb? Make/brand? Volt/watt rating? Inferior cheapo bulb are not lasting. I know there are irresponsible foreman around swapping our nice bulb with fake ones. So need to be careful.If ur suspect is the power management, then quite difficult to test unless its consistently high. If consistently high, just use a volt meter or multi-tester to test the bulb connector to see what is the feed. Normal bulb can endure 14V with no problem, anything above will shorten its life and if u are seeing 15V or more, then confirm!! Power management or to be exact alternator regulator problem!But Juan, your ride should have 3 years BSRI mah??!! which includes bulb wat..</blockquote>

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