Patent ID: 7836688

Claim:
An exhaust system for an internal combustion engine of a motor vehicle, comprising: a selective catalyst reduction (SCR) module having at least one SCR catalyst element in an SCR housing being connected to an exhaust line; a particulate filter (PF) module having at least one particulate filter element in a PF housing being connected to the exhaust line upstream from the SCR housing, a pipe connecting an exhaust outlet of the PF housing to an exhaust inlet of the SCR housing; and a first and a second quick-acting fastening element, wherein the PF housing has a central section arranged between an inlet section having an exhaust inlet and an outlet section having an exhaust outlet, said central section being replaceably mounted on the inlet section and the outlet section by said first and second quick-acting fastening elements and containing the at least one particulate filter element, wherein the PF module in the PF housing contains at least one pre-oxidation catalyst element being arranged upstream from the at least one particulate filter element, wherein the PF module in the PF housing contains at least one post-oxidation catalyst element being arranged downstream from the at least one particulate filter element, wherein the SCR housing contains a muffler chamber filled with muffler material, said muffler chamber being arranged between an inlet chamber and an outlet chamber.