SIB 61 12 05


Dead Battery Caused By MPM


MODEL
E60/E61 (5 Series), E63/E64 (6 Series) produced up to September 2005


CAUSE
An accessory plugged into the cigar lighter / power supply causes a back-feed of voltage into the vehicle electrical system when the ignition is switched off. This causes the MPM (Micro Power Module) to stay awake, and the vehicle battery to discharge.

Energy diagnosis identifies the MPM as the "sleep mode preventer".

CORRECTION
In case of customer complaint, verify that the customer uses the power supply for an accessory with an internal battery (cell phone with charger, MP3 player, radio equipment etc.) and that he leaves the accessory plugged in when the car is switched off.

To avoid a recurrence of the problem, reprogram the vehicle using CIP19.1

 

Direct link:

http://www.bmwtis.com/tsb/bulletins/bullet...mp/B611205g.htm

So it would seem there are CIP versions newer than 19.01 and 19.02...