One problem related to crankcase (pcv) has been reported for the 2015 Audi S8. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2015 Audi S8 based on all problems reported for the 2015 S8.
Turbo failure and positive crankcase ventilation (pcv) failure. Whining noise from pcv and smoke out the tail pipes with no power. Had to pay out of pocket to remedy issues.
| Timing Tensioner problems | |
| Engine Rattling And Whining Sounds problems | |
| Crankcase (pcv) problems | |
| Check Engine Light On problems |