Hi guys. Looking for some advice regarding my B7 Audi A4. I have an intermittent coil warming symbol issue where the coil light will come on and it triggers the car to go into what I think is limp mode. It normally lasts for a few seconds, but by changing down a gear and increasing the revs it will go off and normal power is resumed. It happens quite regularly on a drive but happens a lot more at lower rpms. Did an obd scan and it showed one error related to EGR but not sure if this is it. Had a read but can't find any real solutions on Google. Some people sat it may be injectors, or EGR or something to do with a short with the brake light circuit. Thought would ask if anybody else had experienced a similar issue before I take the car to a specialist? The car is a 170pd. Thanks in advance. Chaps