English: A 2013 Volvo S60 T5 with the infamous piston ring defect. The car was running rough and overheated. The only fix is a complete engine teardown and rebuild. Typical early signs of this engine problem include oil consumption and reduced fuel economy, later on these cars will run rough, overheat, and emit dark smoke. There are wet spots in front of the car because I backed up a little in order to get closer to the retaining wall for safety in order to avoid creating a traffic hazard.