View Full Version : Learned something new today - read the manual

05-28-2010, 05:18 PM
Came out of work to go home and the BMW wouldn't start, battery was dead

A friend offered a jump so I hooked it up to the battery in the trunk and after minutes of trying to charge, no joy.

Opened the manual and in the engine bay is a specific spot to connect the + and - just for jumping, started instantly

The must have protection circuitry and/or that battery was really dead and dragging it down from a direct connection