My partners multipla has been a pain since its purchase but at the moment it keeps losing power, not always going into limp mode though, so far the garage has change the turbo and 2 of the supposedly 3 over boost valve but to no avail, recently it refused to start but then started fine the next day, the garage is now saying the ecu is shot and needs replacing as well as the third over boost valve. please help otherwise its getting scrapped :bang: