5.0 V10 TT (BUH)
Audi · 5.0 V10 Twin-Turbo RS6 C6
2008–2010
"RS6 C6. Twin KKK K24 turbos on Lamborghini V10 block. Most powerful Audi estate ever. Turbo failure, intercooler pipes, carbon buildup. Cooling system under extreme stress. Maintenance costs astronomical. Specialist only."
Mileage Risk Timeline
When problems typically appear — enter your mileage to see your risk zone
Known Issues 3
Twin turbo failure (K24)
▸Smoke, boost loss, whining
Twin KKK K24 turbos under extreme heat. Failure expensive — 2 turbos + labour.
Δίδυμα turbo K24 — €3,000-8,000. Εξειδικευμένο ΜΟΝΟ.
Cooling system under stress
▸Overheating, coolant loss
580hp in a V10 = extreme cooling demands. Multiple hoses, intercooler pipes.
Ψύξη υπό πίεση — €500-2,000.
Carbon buildup (DI V10)
▸Power loss, rough idle
V10 DI = extreme carbon. 10 intake runners to clean.
Άνθρακας V10 — €1,000-3,000. 10 εισαγωγές.
Models with 5.0 V10 TT (BUH) 1
Other Audi Engines
Tuning Potential
600hp+ with tune + exhaust
Frequently Asked Questions
Is the Audi 5.0 V10 TT (BUH) reliable?
The Audi 5.0 V10 TT (BUH) scores 48/100 with a verdict of CAUTION. It has 3 documented issues with total repair costs between €4,500 and €13,000.
What are the common problems with the 5.0 V10 TT (BUH)?
The most common issues are:
- Twin turbo failure (K24) — critical, repair cost €3,000–€8,000, 60,000 km–120,000 km
- Cooling system under stress — high, repair cost €500–€2,000, 60,000 km–120,000 km
- Carbon buildup (DI V10) — high, repair cost €1,000–€3,000, 60,000 km–120,000 km
What cars use the Audi 5.0 V10 TT (BUH)?
The 5.0 V10 TT (BUH) is found in:
- A6 (2008–2010)
How much does it cost to repair the 5.0 V10 TT (BUH)?
Total potential repair costs for all 3 known issues range from €4,500 to €13,000. The most expensive issue is typically .
What years was the 5.0 V10 TT (BUH) produced?
The Audi 5.0 V10 TT (BUH) was produced from 2008 to 2010. It is a 4991cc V10 petrol turbo engine.
Verdict and scores are editorial opinions based on aggregated data. Learn about our methodology. Not a substitute for professional inspection.