A buddy of mine who works for a BMW dealership in my town told me that if I find a M5 that is still under factory warranty, I have to make sure it doesn't have any over rev codes in the computer. If something should happen to the engine and the service techs go in an find any over rev codes, then I am stuck with the bill. Is this true? Second, does one get a code from simply going over red line on rpm's for a second, or will it not register unless certain parameters are met like being rev'ed too hard for an extended period of time.
I did a search and couldn't find anything, but wanted to make sure there were no surprises on any hopeful purchase in the next week.