Changed both batteries and got it running good, but the A/C unit does not power on at all, blower stay on after car is off. You can hear it come on for a second and go off, and keeps repeating the cycle, that's why the batteries drained, so I unplugged the blower for now. Found a 7.5-amp radio fuse behind passenger side that was bad, changed it and the screen now comes on and then says unavailable and s**** off, keeps doing that. I'm not sure if the A/C unit issue is related, where is the fuse for the A/C unit as I don't have the diagram or chart for it. maybe a fuse. I also get the red light for battery on dash when I start the car even though charging is over 14 and both batteries are new. I load tested trunk battery and its good, front is new from Benz, when I clear the code for the light it goes away but next time, I start the car it shows same light.
May 17, 2024 at 3:47 AM
