61 20 503 Vehicle battery - closed-circuit current monitoring
WARNING: This page is about a different car, the 2011 BMW M3, 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.
To access negative lead of battery, perform the necessary preliminary work described in DISCONNECTING AND CONNECTING BATTERY NEGATIVE LEAD .
Do not disconnect negative lead of battery.
Connect BMW diagnosis system.
Connect clip-on probe to negative lead of battery. The arrow on the current clamp must point towards the battery.
Measure closed-circuit current.