Hello CR V friends. At first I thought, after I smelled exhaust gas in the interior, that the flex tube leaks. At the TÜV Durchsicht it turned out that it does not come from the flex tube. But at the Krummer (a very difficult accessible place, behind the engine). On other pages on the Internet I have read from many with crack in the Krummer. So I suspect that I am now also affected by it. Are there experiences in this direction? Thank you for your help.