C350e headlight/auxiliary battery malfunction
I am new to this forum and looking for help 😔. I've got C350e and and i had an accident, so i changed the driver side headlight, sensors, and airbags, and I changed 12v battery in the boot.
However, my car still showing auxiliary battery malfunctioning and headlight stays on, so can anyone please help or guide me in the right direction?
Thanks in advance



