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      08-20-2019, 08:12 AM   #1
liveevil
Private First Class
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Drives: 2013 BMW 320i GT
Join Date: Dec 2015
Location: Singapore

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Signs of weak battery?

Hi guys,

About 6 months ago, I noticed that my car doesn’t start properly after stopping at the red light with auto start stop. It will result in a drivetrain error which goes away after restarting the engine. (I manually switch off ASS most of the times as I didn’t code it off)

Now the car doesn’t switch off at the lights even without switching off ASS.

Sometimes I have long cranking, and usually accompanied with a stabilization error for the rear spoiler. This error also goes away almost immediately.

Signs of a weak battery? It’s almost 6 years and ~55k miles. I have JB4 for the past 30k miles, and no codes when scanning for error. Just changed my spark plugs as well.

Thanks in advance.
Appreciate 0