BMW Repair Questions? Ask a Mechanic for Answers ASAP
-Remove the right flap trim cover in the trunk compartment.
-Remove the battery cover:
-Remove the battery negative cable:
Loosen nut (1).
Important! Do not under any circumstances use force to pull off pole shoe.Do not under any circumstances release socket-head cap screw of IBS.Detach battery negative lead with IBS towards top, lay to one side and secure.
-Remove the spare tire in the trunk.
-Remove positive battery cable:
The vehicle battery replacement needs to be registered to the vehicle using BMW diagnostic equipment. This needs to be done to essentially reset the engine computers charging strategy of the new battery. If this is not performed, premature battery failure of the new battery may result from the vehicle overcharging the battery.
No, the dealer must register the battery replacement with the vehicle in order for the battery to not fail premature due to overcharging.
Sorry for the bad news,