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
Related Guides
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.
Scores are calculated from documented issues, repair costs, and failure patterns across thousands of owner reports and technical sources. Learn about our methodology. Always inspect before you buy.