Hi, Arnel which tool are you using? Which Ml 500? Is it a 164.175 4matic or the 164.172
4Matic anyway never the less if you are using the MaxiSys pro go to information and
communication page click and on your far right top corner you will see IC-instrument
cluster click on it and see if you will find what your looking for there. I myself I haven't
used that feature but i will be looking at it. Good luck.