Battery sensor
#3
IBS is a Intteligent battery sensor and he monitor SOC ( state of charge ) and SOH ( state of healt ) for you battery.If this sensor fail you give an error in DIS and your battery is not charged correctly by alternator.
Best regards!
Best regards!
#4
Heres the issue, when driving and changing gears, the interior lights will flicker, the sound on the radio cuts out for a second, and sometimes dynamic drive faults will pop up. If I disconnect the IBS, the problem goes away. I think the IBS is bad, but there are no faults stored. I am using carsoft to diagnose.
#6
go in the trunk to the battery. on the negative cable, you'll see a small black connector with a single wiring going to it. i think it's wire tied to the negative cable. i disconnected it and the problems went away. no check engine light came on nor did it seem to hurt driveability at all. it did store a fault but never set the check engine light on. its weird because when it gets warm, with the ibs still connected, i don't have this problem. its only when the weather is cold. keep me posted on what you come up with
#7
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My Ride: 2015 535D M Sport
Some times you have to wonder if there is such a thing as too much intelligence. How did we all deal with our stupid, non-IBS, batteries and charging systems for the past 100 years?
#9
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#10