Originally Posted by Dr Dave
"Turbo doing something before the engine is started" what a lot of bollocks how do they think the general public are gullible enough to believe that tripe!
Not saying you're wrong, but might the EMS wiggle the turbo actuator on startup to check the servo positioning? (I have no idea if it does this or not but it doesn't seem insane)
My 330D makes all kinds of (quiet) noises when I wake it up - from fuel pump priming to AC shutters moving around.