BMW New Battery Replacement and Registering – 1, 3, 5, 6, 7 Series, X3, X5, X6

This answer is applicable for many BMWs in addition to the one listed below.

car year: 2005
car model: 545i
Is it critical to register an aftermarket battery after a DIY swap? If so is there something at Bav Auto that can do this to save a 60 mile trek to the dealer?

The newer BMW models do indeed have adaptive charging and power management systems. Part of this management is monitoring the battery’s capacity and its charge and discharge profiles. When a battery is changed, the power management system needs to be run through a diagnostic cycle in order to properly recognize (register) the different battery and the different capacity, charge and discharge profiles.

If the new battery is not “registered” the vehicle will run and the battery will charge. However, in the long run, the life of the battery will likely be compromised due to improper charging parameters.  There are no DIY tools available for your to perform the registering yourself.  You will need to see a BMW dealer or an independent shop that has the proper tools to diagnose and program the late model BMWs.

Bavarian Autosport

1 Series Conv - E883 Series Conv 07-13 - E933 Series Coupe 06-13 - E923 Series Sedan 06-13 - E903 Series Wagon 06-13 - E915 Series GT 2010 on - F075 Series Sedan 04-10 - E605 Series Sedan 11 on - F105 Series Wagon 04-10 - E615 Series Wagon 11 on - F116 Series Conv 04-10 - E646 Series Conv 10 on - F126 Series Coupe 03-10 - E637 Series 02-09 - E657 Series 10-15 - F017 Series Hybrid 11-15 - F047 Series Li 02-08 - E667 Series Li 09-15 - F02MaintenanceX3 11 on - F25X5 07-13 - E70X6 07-13 - E71X6 Hybrid 11 on - E72Z4 09 on - E89