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      06-30-2011, 06:42 AM   #22
Gregxi
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Drives: 2014 535xi
Join Date: Feb 2011
Location: MD

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Quote:
Originally Posted by Razzy View Post
There are many reasons. Which one is accurate i don't know. Some say, it has to do with voltage etc. Some say having both on from a distance may look like a car at a further distance because the closeness of the front lights on motorcycles.

And yes, if you put on high beam both should light up albeit one may be less brighter then the other.
It started about 5 years ago in the states, the OEM's brought it over from Europe only one headlight on in lowbeam unless you flash the passing lamp then both light up.
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