So, shortly after I got my M3, I noticed a slight shimmy in the steering wheel at various times. It seemed to be mostly when I was slowly accelerating or de-accelerating, but I couldn't pinpoint exactly when it happened. It was brief (less than a second) and never caused any driving issues. But it still seemed like something just wasn't right. So, I made an S/C appointment and after the three week wait, I pulled into the service center today where they checked me in and then we went out for a test drive. Now, I have to say here that I recalled one incidence over the weekend while on the freeway. But I spent all day yesterday and this morning trying to figure out how to trigger it so I could demonstrate it for the service technician. But damnit, I just couldn't force it to happen. So, back to this morning's test drive. As expected, I was unable to make it happen <grrrrr>. So then the tech pulls a couple of things up on my screen and has me change lanes without signaling. And with that, he was able to precisely diagnose the problem. He didn't say it but I did; it was clearly a ID10T error. So I sheepishly drove back to the S/C, apologizing profusely to him and the service agent in charge of my case. Maybe I need to study the manual a little more.