hi just needed to ask you all about a problem im have with my audi it driveing me nuts when im driving the car around the car performs very well plenty of power but when i turn it off and have a bit to eat and grab a paper and get back into the car to drive away theres no turbo boost so i pull over turn the car off then restart and all well again the boost is back what could it be please help nearly bald pulling me hair out thanks.
