Hello! I bought a used C3 1.4 HDI BJ 2002 2 months ago. The seller said there is what about the 2nd cylinder (coking ?) therefore the car stinks in the interior, you think you have to scratch off right away I am here in Lübeck to a Citroen dealer and asked for a copper ring and got it. My colleague then installed the sealing ring and the smell was gone and subjectively the car pulls a bit better. Well, after a good 500KM I was on the Autobah n and thought, boy.. You only drive always in the city, give some rubber, that is always good. I then realized, the C3 has only VMAX 150KM/h… actually a little bit for a diesel with about 80 hp…. Hardly off the highway (about 30KM full gas), at the next traffic light … there it was again… this bad smell in the interior. Ask you experts: Can this be leaked again when it was first changed (and was dense) ? Or is now another seal of another cylinder s am Ar… You don’t hear anything good about this engine …. 2. Question: Does someone have an excerpt from a manual where the change of seal ring is illustrated ? I would also pay (logically). Or quickly sell cars again ? LG from Lübeck… Andreas