Receiving/giving starting aid via jump start terminal point
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2011 BMW 328xi, 2011 BMW 328i, 2010 BMW 328xi, 2010 BMW 328i, and 2009 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.
The engine can be jump-started with an external voltage supply via the jump start terminal on the right side of the engine compartment.
NOTE:
The starter battery is isolated from the alternators when the engine hood/bonnet is open.
Giving starting assistance via the jump start terminal is thus limited by the capacity of the starter battery when the engine hood/bonnet is open.