ssamsook
Member
Hi all, I hardly use my E93 330i and have a problem that it looses the date and time every time I start it with a message "Increased Battery Discharge". I've searched the net and it turns out I need to replace the battery. It also turns out that I've got to do it at a BMW Dealer so that the ECU is re-programmed/modified to charge the new battery. Where can I go to have the correct battery fitted and the software updated with no problems afterwards at a reasonable price?