I had a car with both and was fine with the halogens. Though the xenons were a bit brighter (and have the coolness of the shutter!)
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Yea I thought it was speed sensitive, not based on a sensor for noise.
I don't even like that feature!
Yea I didn't know there was a sensor lol
It's a good idea in theory but it bothers me in reality, so I turned it down to the lowest setting. Maybe being in a vert makes it tougher on the system?
Both of my key fobs have stopped working. I replaced both of the batteries with CR 2016s and I'm still getting no response. Am doomed to buy a new key?
Try recoding your keys: http://www.bmwgm5.com/key_recode.htm
My keys died and the above did the trick for me.