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E90/E91/E92/E93 (2006 - 2013)
The E9X is the 4th evolution of the BMW 3 series including a highly tuned twin turbo 335i variant pushing out 300hp and 300 ft. lbs. of torque. BMW continues to show that it sets the bar for true driving performance! -- View the E9X Wiki

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  #1  
Old 10-06-2012, 07:51 PM
Blackberry328 Blackberry328 is offline
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Location: Dallas
 
Join Date: Apr 2012
Posts: 47
Mein Auto: 09 328i 6MT Cabrio
Beware of idrive battery drain

I noticed every once in a while that Blackberry would be slow to start. I took her into dealer for battery check and some other maintenance as she's coming up on 50K miles. They found that while at rest...she was being woken up way too many times due to the controller for the idrive causing excessive battery drain. They replaced the con module and the battery and everything is ok now. I didn't even know the idrive controller was supposed to light up.

OAN...when I went to pick her up I test drove a 2011 M3 E93....OMG!
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  #2  
Old 10-07-2012, 04:19 AM
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Thunder Dump Thunder Dump is offline
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Location: Western MA
 
Join Date: Jul 2009
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Mein Auto: '09 328i E93 SGM/CR
You can help this problem by locking her while she sleeps, even if you park in a secure home garage. When the car is not locked it will stay awake longer than if it is locked, thus draining the battery more.
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Old 10-07-2012, 04:27 AM
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Speedwagon Speedwagon is offline
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Location: Colorado
 
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Posts: 336
Mein Auto: 2012 328IX Sportwagon
Quote:
Originally Posted by Thunder Dump View Post
You can help this problem by locking her while she sleeps, even if you park in a secure home garage. When the car is not locked it will stay awake longer than if it is locked, thus draining the battery more.
+ 1 locked even in the garage!
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Old 10-07-2012, 08:59 AM
Blackberry328 Blackberry328 is offline
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Location: Dallas
 
Join Date: Apr 2012
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Mein Auto: 09 328i 6MT Cabrio
Thanks Thunder!! I'll definitely make that a new habit. I'm guilty of not doing that in the garage.
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Old 10-07-2012, 12:20 PM
Lufthansa Lufthansa is offline
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Location: Arizona
 
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Posts: 774
Mein Auto: 2010 E92; '07Lexus GS350
Quote:
Originally Posted by Thunder Dump View Post
You can help this problem by locking her while she sleeps, even if you park in a secure home garage. When the car is not locked it will stay awake longer than if it is locked, thus draining the battery more.

I have my doubts this observation would be the case if the car, like mine, had the factory alarm system.
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Old 10-07-2012, 12:43 PM
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beden1 beden1 is offline
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Location: PA & FL
 
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Mein Auto: '11 335is Cab & '08 535xi
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Originally Posted by Lufthansa View Post
I have my doubts this observation would be the case if the car, like mine, had the factory alarm system.
The factory alarm system was the culprit of this issue on my wife's '08 535xi.
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