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Discussion Starter #1 (Edited)
2009 E71 N54 35i xDrive 72,000km

Three 10mm bracket bolts hold the battery in place, three nuts on battery top for + /— and Power distribution box.

As winter comes, cluster time and date keep reset every few weeks even after CTEK charger FULLY charged battery.












Use INPA v5.06 for battery registration.






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After:

 

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