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      07-25-2009, 03:54 PM   #19
Lemans_Blue_M
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Drives: Lemans Blue M3
Join Date: Aug 2007
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Quote:
Originally Posted by SenorFunkyPants View Post
That is essentially the Brake energy recovery system.
Not quite.

Our cars here in the United States get a 'watered down' version of the system. We do not benefit from the slightly better fuel economy by recovering the brake energy to power accessories or re-charged the battery. (which takes some of the load off of the alternator) Therefore the alternator becomes the sole pathway to recharging the starting battery in the trunk while also delivering power to all the lighting, and other electronics in the car.

Long story short, BMW ditched this system on U.S.-spec M3's as a cost cutting move.

I'd love to have this system on my car if I had the choice.
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