Davidarnol
New Member
- Joined
- Dec 30, 2011
- Messages
- 10
The warning above appeared in our 2015 E220D bluetec, checked the aux battery and it seems to be ok, shows 12.9 volts while removed from the vehicle,
Reinstalled the Aux battery and started the engine while monitoring the battery, it showed that the Aux battery was being charged ok, however after a short time the aux battery stopped being charged and the fault message reappeared in the dash, could it still be the battery or am I looking deeper?
Reinstalled the Aux battery and started the engine while monitoring the battery, it showed that the Aux battery was being charged ok, however after a short time the aux battery stopped being charged and the fault message reappeared in the dash, could it still be the battery or am I looking deeper?