Quote:
Originally Posted by RRE70
...from what I heard at my local dealer, it is that BMW already implemented an complete electrical system that is fitted for an AGM-battery in the 2007 (and early 2008?) X5's. Unfortunately, when they put their first AGM (VARTA....) battery in, it also couldn't keep charge.... From what I understand; if you have the AGM-02 (also Varta?) installed, together with the software update (2-6 hours....) the problem should be fixed.
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I have a 2010 X5 and it got the dreaded message after three short trips, preceded by nothing but highway trips of more than an hour in duration.
BMW have not fixed the problem yet, at least not on 2010 models.
I now make sure I put it on the CTEK charger once every couple of weeks, which is absolutely ridiculous for a vehicle in this price range.
Next time around I think it's going to be a Ford, rather than a BMW.