4.0 TDI V8
Audi · 4.0 TDI V8 (BTR/CCFC/CDSB)
2003–2012
"D3 A8, Q7. V8 diesel — enormous torque. Complex. Timing chain. 8 injectors = expensive. DPF. Linked to Dieselgate (CDSB). Specialist only. Parts costs astronomical."
Mileage Risk Timeline
When problems typically appear — enter your mileage to see your risk zone
Known Issues 2
Timing chain complexity
▸Rattle, codes
V8 timing chain system. Very expensive.
Αλυσίδα V8 — ΠΟΛΥ ΑΚΡΙΒΟ. €2,000-6,000.
Injector failure (8 injectors)
▸Rough idle, smoke
8 CR injectors = astronomical cost.
8 μπεκ V8 — €1,500-4,000.
Models with 4.0 TDI V8 3
Other Audi Engines
Tuning Potential
450hp Stage 1
Frequently Asked Questions
Is the Audi 4.0 TDI V8 reliable?
The Audi 4.0 TDI V8 scores 52/100 with a verdict of CAUTION. It has 2 documented issues with total repair costs between €3,500 and €10,000.
What are the common problems with the 4.0 TDI V8?
The most common issues are:
- Timing chain complexity — critical, repair cost €2,000–€6,000, 80,000 km–150,000 km
- Injector failure (8 injectors) — high, repair cost €1,500–€4,000, 100,000 km–200,000 km
What cars use the Audi 4.0 TDI V8?
How much does it cost to repair the 4.0 TDI V8?
Total potential repair costs for all 2 known issues range from €3,500 to €10,000. The most expensive issue is typically .
What years was the 4.0 TDI V8 produced?
The Audi 4.0 TDI V8 was produced from 2003 to 2012. It is a 4134cc V8 diesel engine.
Verdict and scores are editorial opinions based on aggregated data. Learn about our methodology. Not a substitute for professional inspection.