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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing / Warranty > Increased Battery Discharge code....The Usual Suspects??



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      08-03-2017, 09:15 AM   #1
PJLou335is
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Increased Battery Discharge code....The Usual Suspects??

I understand something is draining my battery when its off, i just cant figure out what. Seems to have (maybe) started after I paired a bluetooth OBD reader(now disconnected) also dont drive it everyday so it sits, but when i do drive it regular it stays charged...any input would help before Im forced to limp into the dealership.

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      08-03-2017, 10:42 AM   #2
floydarogers
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Quote:
Originally Posted by PJLou335is View Post
I understand something is draining my battery when its off, i just cant figure out what. Seems to have (maybe) started after I paired a bluetooth OBD reader(now disconnected) also dont drive it everyday so it sits, but when i do drive it regular it stays charged...any input would help before Im forced to limp into the dealership.
4 years old, the battery could be bad.
Do you lock it? Locking it forces the electronics to shut down. And if you have comfort access, take the keyfob out of range.
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      08-03-2017, 08:43 PM   #3
PJLou335is
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That may be the case, i dont lock it and i keep the key fob hidden in my workbench right next to the car (in case the wife gets any ideas.....) Ill jump it off and see if that helps, thanks
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      08-04-2017, 12:31 AM   #4
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Blower motor final stage resistor is the most common culprit!!!!!! Easy, affordable, fix.
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      08-04-2017, 09:50 PM   #5
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Bad battery is the simplest cause.
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