Replace battery in e39 touring | BimmerFest BMW Forum
BMW 530i E39. Was helping my son install a dashcam and I observed the voltage was low (11.6v). Checked the battery (new) and saw the post to the left of the positive
DD 40 BMW 1436902 Used OEM BATTERY CABLE WITH POLE 12421436902 Fits: E39 540i & other