6.0 W12
Audi · 6.0 W12 (BHT)
2003–2010
"D3 A8 W12, Phaeton. Two VR6 blocks merged. 4 timing chains. Ignition coil failures (12). Oil leaks everywhere. Coolant system complex. Beautiful engineering nightmare. Parts extinct in some markets."
Mileage Risk Timeline
When problems typically appear — enter your mileage to see your risk zone
Known Issues 2
4 timing chains + guides
▸Rattle, timing codes
4 chains. Failure = engine destruction.
4 αλυσίδες — €3,000-10,000. ΑΠΟΦΥΓΗ.
Ignition coil failure (12 coils)
▸Misfire
12 coils.
12 πολλαπλασιαστές — €300-900.
Models with 6.0 W12 1
Other Audi Engines
Tuning Potential
None — save money for repairs
Frequently Asked Questions
Is the Audi 6.0 W12 reliable?
The Audi 6.0 W12 scores 42/100 with a verdict of AVOID. It has 2 documented issues with total repair costs between €3,300 and €10,900.
What are the common problems with the 6.0 W12?
The most common issues are:
- 4 timing chains + guides — critical, repair cost €3,000–€10,000, 80,000 km–150,000 km
- Ignition coil failure (12 coils) — moderate, repair cost €300–€900, 40,000 km–80,000 km
What cars use the Audi 6.0 W12?
The 6.0 W12 is found in:
- A8 (2003–2010)
How much does it cost to repair the 6.0 W12?
Total potential repair costs for all 2 known issues range from €3,300 to €10,900. The most expensive issue is typically .
What years was the 6.0 W12 produced?
The Audi 6.0 W12 was produced from 2003 to 2010. It is a 5998cc V12 petrol na engine.
Verdict and scores are editorial opinions based on aggregated data. Learn about our methodology. Not a substitute for professional inspection.