One problem related to tire sidewall has been reported for the 2005 Volvo S80. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Volvo S80 based on all problems reported for the 2005 S80.
While driving on an interstate at approximately 70mph a very slight road vibration was felt approximately 1 minute before the rear driver side tire completely failed. There was a loud audible thump as the vehicle unintentionally jerked to the left. I was able to maintain control of the vehicle and stop safely. Upon inspection, both sidewalls of the tire had separated from top tread section and the tire was in three complete pieces. The wheel incurred minor damage. The vehicle was not overloaded. The tire was believed to be at the correct pressure and showed no signs of puncture or obvious cause of failure. The tire was purchased and mounted professionally 43 days before the failure.