I'm not sure how I change the spark plugs for this car, i just go it, and all my other cars it was really easy to remove the sparkplug wiring, but this car has this orange caps on them of some sort, and when i tried to pull on out it id very difficult and when it finally gives in a little, it expanded and it looked like there was a tube going in to the holding area, im not sure exatly what to call it, so dont get thrown off. I dont want to break anything so i need help

Can someone please tell me how i can remove these wires so i can get to the spark plugs, and if you know any websites that talk about this or have the audi technician manule for free please let me know.


Thank you, Greatly appreciate your time and help

also would bad spark plugs cuase the check engine light to flash?