Quote:
Originally Posted by X-cellent
My guess is comfort access is somehow one of the key players. My business partner has an 09 4.8 and drives 3 miles to work each day...car is two years old and i don't think he has 10k miles on it, and has more options than i do (ventilated seats) and NO comfort access and his car sits for weeks on end not being used when he travels and he's never had an issue.
With C.A. i know to lock the car each time i walk away, keep the keys far away at night, but suspect that this has been the major factor in my issues over the last year, and finally got to the point that the battery just couldn't take it.
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Both my 2007 3.0si and 2008 4.8i did NOT have Comfort Access (and I think the 3.0si didn't even have heated seats).
BOTH the '07 and '08 WITHOUT Comfort Access were constantly displaying Low Battery warnings (with the '07 not starting many, many times).
As a former frustrted E70 owner, I know we all want "to find" the answer & reason for battery issues, but IMO, I do not think Comfort Access is the reason. I still think the car is just not properly "going to sleep" when not in use, and too many functions are just continually pulling juice from the battery!
Does anyone know why the 2011 35d does NOT have regenerative braking, but the 2011 35i and 50i do? I had that on my 2010 750, and it is an amazing feature. Marginally better mpg, but virtually no brake dust and the battery gets an added recharging helper! Also, wonder why the 2011 35i and 50i get the awesome new 8 speed transmission & the 35d still uses the 6 speed (although the tranny in my 35d is very smooth, I love BMWs new 8 speed).