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Old 01-17-2013, 04:31 PM
Supercourse Supercourse is offline
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Location: British Columbia, Canada
 
Join Date: Feb 2008
Posts: 3,094
Mein Auto: 2004 X3 2.5i
Quote:
Originally Posted by sjladopoulos View Post
I ve had that warning light on for the past 500 days.

Gave up on searching... all the lights that I know of are on.
If you have ruled out the brake force display by having someone watch as you brake sharply from high speed, it could be a (marginally) working bulb with high resistance.

From what I understand, the dealer's fancy diagnostic equipment applies a test voltage to look for high resistance.

The high resistance might be accompanied with a blackened glass, or just a loose or corroded connection.

The only DIY recourse is to start swapping in new bulbs for the seemingly good ones until the warning light goes away - or just replace them all anyway.
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