The only cars I work on are the ones widows and poor people bring in. AND my own, which are pretty dependable.
Beamers are not likely to end up on my lift, but if they did, I'd research the proper forums and youtube before lifting it. You can always learn something from a good mechanic.
Of course, sad to say, that rules out Blaine. Anyone that can't be regimental about changing filters is not a good mechanic.