I have a 2012 2 ltr diesel Seat Leon FR 550 and it keeps going to limp mode. There are days when its completely fine but recently its becoming constant. When starting car and leaving it running for 3 mins, an orange coil type light shows up on the dashboard. Is there anything that can be done without a costly visit to a mechanic to figure out why this happens or anything i can do to prevent going forward? I am not very knowledgeable on cars so if more info needed i will provide. Thanks, Rodney.