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Old 02-15-2009, 09:49 PM   #8
SubZeroE46
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Join Date: Sep 2008
Location: Singapore
Posts: 39
My Ride: E46 320i
The car periodically sends out test pulses to test if any of the bulbs are faulty. Normal bulbs do not respond fast enough to flicker but LEDs are faster and they flicker. Can solve this by placing a rather big capacitor to filter them out. If not, then imagine that your car is a plane with the flashing lights.
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