Mercedes ADBLUE

[CARPARTS]

Hi

I have mercedes CLS250 FROM 2014 with adblue.

I need to test the car with trying out several files with removed ad-blue (in the software - file)

How you can test, check, see or read-out that this function is actually de-activated ??

Is there any instruction how to "test" if the modfied file is really 100% working and will disable this ad-blue function ???

Thanks for any advice.