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X3 F25 (2011 - 2017)
The second generation X3 added style and new features to the BMW's mid-sized SUV. Talk about the BMW F25 X3 with other X3 owners now!

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Old 07-29-2013, 04:10 AM
RhoXS RhoXS is offline
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Location: Florida
Join Date: May 2008
Posts: 523
Mein Auto: Z3 & X3
Rear Defogger - Time Delay off

To my surprise, I noticed the rear defogger auto turns off after exactly ten minutes. Preferably, I would like to eliminate any auto off time delay so it stays on until manually turned off or the car shut down. Alternately, I would like to extend the time delay to something much longer than ten minutes. Can either of these changes be made by the dealer or coding?

On warm humid days the rear window fogs up when the defogger is not on. On cold winter snowy days it helps considerably leaving it on continuously. So it is a pain every ten minutes to notice it fogs up or start collecting ice/slush then turn it back on. If the time delay is the result of an efficiency thing it is really meaningless. The circuit is fused at 15 amps. Assuming worst case 15 amps of current, that is less than 1/4 HP. I could afford the BMW so I certainly can afford the miniscule amount of additional gas leaving it on continuously will burn.
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