New X3/ Excessive Battery Discharge Error

Sx3 · 06-01-2012, 07:53 PM

One week old 2013 X3 28i: I got a check control message for excessive battery discharge overnight when started the car in the morning. This resulted in the system shutting down whatever internal electronics that was on stand-by to preserve the battery charge. The car was locked with the lights off and the parking brake engaged. I had no electronic devices connected to the vehicle. I also "DO NOT" have the comfort access.

The dealer discovered recorded fault of closed-circuit current discharge of 0.2-1A in a 4-5hours period but still does not know what caused it! Have to take the car back for further sand-by current draw test. It is disappointing, to say the least!

lbjgh · 06-01-2012, 08:22 PM

Ya, I got that message too in the first couple days but I figured it was from sitting in the car with the ignition on playing with the iDrive.

I ignored the message and it has not returned.

Ant Man · 06-02-2012, 07:42 AM

In the quest for reduced fuel consumption, the alternator is only engaged to charged the battery whilst slowing down. I believe a change in driving style to use the gears a little more to slow the car is required for new BMWs (rather than brakes) to keep the battery charged up.

06-01-2012, 07:53 PM	#1
Sx3 Registered 0 Rep 2 Posts Drives: 2013 BMW X3 28i Join Date: Jun 2012 Location: Toronto/Canada iTrader: (0)	New X3/ Excessive Battery Discharge Error One week old 2013 X3 28i: I got a check control message for excessive battery discharge overnight when started the car in the morning. This resulted in the system shutting down whatever internal electronics that was on stand-by to preserve the battery charge. The car was locked with the lights off and the parking brake engaged. I had no electronic devices connected to the vehicle. I also "DO NOT" have the comfort access. The dealer discovered recorded fault of closed-circuit current discharge of 0.2-1A in a 4-5hours period but still does not know what caused it! Have to take the car back for further sand-by current draw test. It is disappointing, to say the least!
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06-01-2012, 08:22 PM	#2
lbjgh Lieutenant Colonel 104 Rep 1,511 Posts Drives: 2013 AW X3 M-Sport Join Date: Dec 2011 Location: North of Toronto iTrader: (0)	Ya, I got that message too in the first couple days but I figured it was from sitting in the car with the ignition on playing with the iDrive. I ignored the message and it has not returned. __________________ 2013, AW, xDrive35i, M Sport Package, Technology Package, Dynamic Comfort Package, Premium Package, 3M Clear Bra, Euro foglight switch, a few coded fixes
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06-02-2012, 07:42 AM	#3
Ant Man Major 75 Rep 1,179 Posts Drives: E92 M3 Individual Edition Join Date: Jun 2008 Location: East Anglia iTrader: (1)	In the quest for reduced fuel consumption, the alternator is only engaged to charged the battery whilst slowing down. I believe a change in driving style to use the gears a little more to slow the car is required for new BMWs (rather than brakes) to keep the battery charged up.
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