EQC AC Compressor Failure

I also drive an EQC and your description sounds like something I went through Is the error constant or does it come and go Is the AC compressor getting power or have you ruled that out It's best to check the basics before assuming the control unit is the problem I'm not sure if we have the same issue but more information would help

Thanks for the quick reply The error is always there, even after clearing the error memory I haven't checked if the AC compressor is getting power because the diagnostic tool pointed to the control unit Can you tell me how you checked the power to the AC compressor Your help would be great

For me, the AC compressor wasn't getting power because of a relay problem, not the compressor itself Given the error code, I'm not sure that's your problem You should talk to a qualified technician You probably don't have the tools to figure this out The cost might be worth it to eliminate other possibilities

Thanks for sharing your experience and advice I talked to a certified Mercedes-Benz technician It was the AC control unit, like I thought They replaced it and recharged the system Now the AC is working Thanks again for your help Your advice helped confirm what I thought was wrong