[cliffyh]

2012 bmw x3 F25 N20

The battery initially would not charge above 13v even with the big charger, was getting a s 0398 code power management battery fault or worn out.

changed the battery with another one and with the charger on, it got up to over 14v, cleared the codes and was left with the 3 codes listed above and pic attached with discriptions.

Tried to relearn values, doesnt seem to want to do it. Is it possible there is a flag that has to be reset in the DME that is not allowing it to reset?

Any help or guidance in this matter would be greatly appreciated.
Thanks and have a great day.

[6MT_Addict]

Originally Posted by cliffyh

2012 bmw x3 F25 N20

The battery initially would not charge above 13v even with the big charger, was getting a s 0398 code power management battery fault or worn out.

changed the battery with another one and with the charger on, it got up to over 14v, cleared the codes and was left with the 3 codes listed above and pic attached with discriptions.

Tried to relearn values, doesnt seem to want to do it. Is it possible there is a flag that has to be reset in the DME that is not allowing it to reset?

Any help or guidance in this matter would be greatly appreciated.
Thanks and have a great day.

The 2012 MY came with the N52, the N20 was introduced for the 2013 MY. Are you sure you have an N20?

Codes look to be vanos related. They only showed up after the battery replacement? Does the engine start/run?

Your codes look to be related to a wiring issue. You could try leaving the battery disconnected overnight to see if that resolved it, assuming this only happened immediately after you replaced the battery. https://bmwfault.codes/XMLDiagView?d...EAMgA4ADAANAA=