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Supplemental light failure warning


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Hi Anyone had an issue with my 2006 E64, I am getting light failure alert, parking light but on inspection there is no failure. On  plugging reader in, it is saying a 'supplemental light failure' and that is it.

All lights appear to be on and working including parking lights, if anything daytime angel eyes appear a bit down on power. Maybe that is a clue.


Appreciate any insights/experience.



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Morning Paul

I thought the supplemental light was the third brake light ?? Can't remember where I read that but worth checking. You can change the Angel eye bulbs for LED replacements that brighten them up if it's a concern.


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