I recently had to replace the AdBlue pump and processor - in order to pass emissions testing. It took 300 miles of varied driving to reset the NOX SENSOR AND THE HI-TEMP AIR SENSOR. After 500 miles the CAT sensor has still not reset. The local stealership SA says to just keep driving it! The service manager is not returning my calls. I am making special trips just to drive the vehicle in hopes that the CAT sensor resets. Any suggestions? I only have until 10/31/2015 before my tags expire.

A specific drive cycle is what I have requested from the stealership, and they have not/can not provide me with it! HELP PLEASE

2010 ML350 BlueTec