Audi A8 D3 — Reliability

D3 2003–2010 1 engine

Reliability Summary

Engine 6.0 W12 — 42/100 AVOID
Known Issues 2

Engine in this model

AVOID 42

6.0 W12

6.0 W12 (BHT)

D3 A8 W12, Phaeton. Two VR6 blocks merged. 4 timing chains. Ignition coil failures (12). Oil leaks e...

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Known Issues Across All Engines

Issue Engine Severity Onset
4 timing chains + guides 6.0 W12 critical 80,000 km – 150,000 km
Ignition coil failure (12 coils) 6.0 W12 moderate 40,000 km – 80,000 km