Anybody know how to change the headgasket on 03 cooper s?
 

I found a yellowish light brownish consistancy in my oil when i checked the other day. Im pretty sure its the head gasket. this happened to my civic and i replaced it myself. I feel like i will need a lot more help with this than my civic. Does anybody know where i should order my parts? Should i stick with OEM parts or are the other brands just as reliable? Please can somebody help me. Does anybody know any forums that have a step by step process on how to do this. thanks
, Trevor