Hi Dave
Sorry for the delay in replying. We been having a very bad weather and lots of heavy flooding which didn't enable me doing anything with my car.
I already stayed away from my mechanic and replacing the TCM and the fluid was diagnosed by another trans specialist despite no codes has ever appeared in his famous scan. They diagnosed replacing the TCM without even checking the trans fluid level.
On Tuesday I'll take my car to another mechanic only to check the fluid level before I finally hit the BMW Dealership.
The strange thing Dave is when I drive around the city nothing happened but when I go on the highway for a good while then I shut off the engine for no more than 5 minutes and come back to start it this is when the message appears in orange color then in red and when that happens the button start/stop goes dead and the shift lever gets stuck in P.
By the way, back in 80th I lived in Churchdown near Gloucester for a couple of years with my British girlfriend until my mom got very sick and had to return to Chile. I still miss very much the good old pubs in Gloucester.