One problem related to catalytic convertor has been reported for the 2004 SAAB 9-3. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 SAAB 9-3 based on all problems reported for the 2004 9-3.
The heating system, upon each initial start up, blew a foul-smelling gas into the passenger compartment. (nar).