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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > Bad battery? Alternator? Help



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      02-15-2018, 08:00 AM   #1
Aseneph
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Bad battery? Alternator? Help

Got this code last night on the way home. Battery warning light popped on the dash on the way home last night. Read the voltage at 11.96. Got home turned the car off, charged the battery for a couple hours. Drove the car again, no code, no light? Drove this morning and everything seemed fine. Voltage was 14-15. Any ideas?
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      02-15-2018, 12:56 PM   #2
Mike@N54Tuning.com
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Maybe battery ran low or something was left on? If you clear the codes and charge it back up like you did I wouldn't worry about it.. Could have been a one off.. If it happens again then you know something is up.

Mike
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      02-15-2018, 01:02 PM   #3
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Quote:
Originally Posted by Mike@N54Tuning.com View Post
Maybe battery ran low or something was left on? If you clear the codes and charge it back up like you did I wouldn't worry about it.. Could have been a one off.. If it happens again then you know something is up.

Mike
Thanks for the input! Everything seems normal for now. Maybe it could have been a loose connection but I'll keep an eye on it
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