Hello All, I have just joined. I'm hoping someone can shed some light on the issues my S4 is going through currently. I have a 2013 S4 S-Tronic that's gone in for a timing chain renewal. The car's at 80000 kms. Some problems developed during this repair which resulted in a new fly wheel, injector clogging and eventually with traces of water finding its way into the pistons. On startup, the timing chain jumped/slipped. So the repair was repeated only for the chain to jump on the second start up as well. After diagnosing water in the cylinders the cylinder has been removed for further investigation. I'm finding it difficult to understand how of all of these issues can come up as a result of renewing the timing chain.............. Or could these issues have been stimulated by the initial jump? Any comments?