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-   -   Getting rid of error messages (Replace the battery) how to?? (http://www.bimmerfest.com/forums/showthread.php?t=638890)

RenatoCWB 08-12-2012 11:45 AM

Getting rid of error messages (Replace the battery) how to??
 
i own a 2011 X3 xdrive35i, and and left the car 3 days with the door open, so the battery died.

i made a slow charge, and now everything is ok for 2 weeks from the episode.. but i get the message "REPLACE THE BATTERY"

I really believe that dont need to change the battery, because the car has only 11 months.. like new..

The dealer says to take the message just by replacing the car battery. I think they just want to cash on me. (In Brazil this is very normal)

How do I get rid this message?

I tried to enter the service menu but the options are only delete service, oil changes and brakes. Nothing related to the check control message (Replace the battery)..

Thank you!

snowboardjoe 08-12-2012 12:50 PM

Sadly, the battery is likely ruined. If the computer is telling you to do this, then it has already detected the battery in a weakened state and alerting you to imminent failure (battery probably can't be charged to full capacity any longer).

However, I'm surprised the battery became completely discharged. The systems are configured to shutdown everything (including courtesy lights when the doors are left open) after about 15 minutes of no activity. Only things that are hotwired (blinkers, parking lights, ignition, etc.) would remain on at all times. Maybe something else was left on?

Regardless, lead acid batteries never like to be completely discharged--it's a death sentence. I would follow the computers recommendation as I believe it's an accurate assessment. It's not something you can reset as far as I know.

lbjgh 08-12-2012 03:08 PM

How about remove the battery cable for a couple of minutes then reconnect the cable. You might just fool the computer.:eeps:

AzNMpower32 08-12-2012 05:16 PM

If you've completely drained the battery, it's already weakened as mentioned above and whatever minimal charge you gave it will not stay for long. I would replace the battery ASAP. It's an expensive mistake, but mistakes happen to everyone and hopefully you won't do it again.


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