Audi A8 D3 — Reliability
Reliability Summary
Engine
4.2 TDI V8 — 71/100
ACCEPTABLE
Known Issues
4
Engine in this model
Known Issues Across All Engines
| Issue | Engine | Severity |
|---|---|---|
| Timing chain and tensioner wear (rear-mounted chains) | 4.2 TDI V8 | critical |
| Turbocharger failure or sticking turbo linkage | 4.2 TDI V8 | high |
| Piezo injector faults | 4.2 TDI V8 | moderate |
| Emissions software recall (defeat device, A8 and Cayenne) | 4.2 TDI V8 | moderate |