Going to replace the rear pads and sensor on my wife's ML350 and when I try to retract the RPB I get a CONDITIONS NOT CORRECT message...Is there a trick to doing this? Also ,if I just dont apply the RPB would this not be doing the same thing as retracting it?

 

Not sure what that message is, but here is the vide I follow when I did mine on 2014.

 

Maybe I missed something,I'll have to watch it again....Thanks.