Hello, I have been dealing with vehicle technology for several years and have accumulated a lot of knowledge over the Internet, but never put my hand on it. The only thing I have done is to read out VCDS error memory and encode small things. I have learned from my knowledge that changing oil or even changing brakes is not witchcraft. My Audi A4 B9 will soon be full again and I would like to do the oil change myself. In addition, I wanted to ask if such a repair guide https://www.ebay.de/itm/392481293825?mkcid=16&mkevt=1&mkrid=707-127634-2357-0&ssspo=3jm2BtF2RsO&sssrc=4429486&ssuid=mxp2cozoqvk&var=&widget_ver=artemis&media=COPY for future work could help me learn the bolt independently. edit: https://www.ebay.de/itm/392481293825?…