One problem related to engine exhaust system has been reported for the 1999 Volvo S80. The most recently reported issues are listed below.
: the contact stated while driving various speeds (15-75 mph) on normal road conditions with the cruise control engaged and after an extended ride from 45 to 90 minutes, all warning lights illuminated. The cruise control disengaged by it self and the engine hesitated. The vehicle was taken to the dealership twice, who performed a NHTSA recall #06v41000 which entailed upgrading the current software. However, the problem was not corrected either time, the lurch/stall problem continued. The dealership and the manufacturer coincided the replacement of the air flow control and the abs control unit was not covered by the vehicle's extended warranty, eventhough those replacement corrected the problem. The contact was very concerned because the recall did not solve the dangerous problem. Updated 12/28/2006 -.