N55 PPK installed..idle roughness and hesitation.
Just bought a used 2011 335i xDrive. Had the PPK Version 1 installed (software update) and now I am noticing that when warmed up the idle gets slightly rough at times and there is also a slight bit of hesitation when accelerating from a stop. Any ideas..anyone else notice this? How do I verify I have the latest/correct PPK installed?