[rps]

That is the main computer that controls the entire car. The iDrive was doing crazy things: the radio wouldn't work for several minutes, I was unable to display the radio information on split screen, the car would forget where it was set after it was turned off, and other weird things. They also replaced the Sirius module, because the radio stopped working and when I called Sirius to send a hit to the radio, I was told that the ESN had changed. The iDrive system works much faster and better now. I'm sure that part of it was due to the firmware being up-dated to the latest version from the original that came with the car. The auto start/stop now works the way it should.