Hi All i am having intermittent issues with the car. the 2 issues happens the same time so its linked. i can be driving as normall and then all of a sudden i lose turbo, with this i dont have any message on dash i.e limp mode and i can change from 'C' to 'S' and 'M' but this doesnt make any difference and turbo will not work. when i stop when this is happening i cannot reverse at all it just revs. however if i turn the engine of and back on it works fine. i have had diagnostics on this and its not showing anything. i am at a loss at the moment , as garage said they wont know whats wrong until it happens and that they can look at it, but its intermittent and difficult to get it to them. any ideas i would be grateful for.