"Check Control Messages for the 12 Volt Battery are Displayed. Sporadically, one or more of the following Check Control Messages may be displayed. The vehicle starts without problems and after a key cycle, the messages are gone. ID 229 - ""Charge Battery"" ID 304 - ""Change Battery"" ID 415 - ""Discharge Battery while stationary"" ID 460 - ""Replace Battery"" ID 461 - ""Battery state of charge... %"" Additionally, one or more of the following fault codes may be stored: DME - 213901 ""Power management: reduction or switching off of individual electrical consumers"" BDC - 8040C7 ""IBS: The recharging limit has been reached"" CAUSE Software error in the IBS (Intelligent Battery Sensor)."