2013 328i convertible threw a battery discharge warning couple day ago so I figured a battery replacement was in order. Then last night, it started to miss heavily but I don't see any codes on my generic scan tool. I've replaced the battery this morning (kind of a pain since the AGM battery weighs a ton!) but the heavy miss remains. I need to order a BMW scanner so I can register the new battery so I'll have that in a few days to see if there are any BMW codes in there. The old battery was only at 11.7 volts so it was definitely going bad, but the car was still starting and running. It does have a "Service Engine Soon" message but all the on-board maintenance stuff shows green - not due yet. I understand this is a BMW unique message and is similar to a CEL but I can't tell what it may mean till my BMW scanner comes. (I think I'll order the Bavarian Technic 3 VIN setup so I can work on my Z4 as well)
Anybody know if a BMW will shut things down, like a fuel injector maybe, due to system errors caused by a low voltage battery? Seems like that would throw a generic OBD code wouldn't it? With the new battery, think whatever it is might clear with a few engine cycles?
Anybody know if a BMW will shut things down, like a fuel injector maybe, due to system errors caused by a low voltage battery? Seems like that would throw a generic OBD code wouldn't it? With the new battery, think whatever it is might clear with a few engine cycles?
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