Welcome to another video. This time we had this Audi Q7 with a 3.0TDI CRT engine booked in just for timing chain replacement as prevention. Car was behaving normally on roads and also there were no fault codes in the diagnostic. We proceed to work as usual so  engine out. We inspected everything at the same time and we did find loads of carbon in the intake. Owner agreed to proceed with the extra work and once we were putting everything back together we found this ....Thanks for watching , if you want to know what's going on daily at our workshop you can follow us on instagram ! https://www.instagram.com/vag_technic_ltd/ music by infraction no copyright music