4.0 TDI V8 vs EA837 3.0T SC

Side-by-side reliability comparison

Higher reliability score
EA837 3.0T SC BUY 82/100
+30 points over 4.0 TDI V8
0 / 100
CAUTION 4.0 TDI V8 Audi
0 / 100
BUY EA837 3.0T SC Audi

Specifications

4.0 TDI V8
EA837 3.0T SC
Brand
Audi
Audi
Verdict
CAUTION
BUY
Reliability
52
82
Years
2003--2012
2008--2017
Displacement
4134 cc
2995 cc
Layout
V8
V6
Type
Diesel
Petrol Supercharged
Power
326--385 hp
272--354 hp
Known Issues
2
3
Total Risk Cost
€3,500--€10,000
€1,000--€2,200

Character

4.0 TDI V8

"D3 A8, Q7. V8 diesel — enormous torque. Complex. Timing chain. 8 injectors = expensive. DPF. Linked to Dieselgate (CDSB). Specialist only. Parts costs astronomical."

EA837 3.0T SC

"Most reliable S-model Audi ever. Supercharged = instant. Known issues cheap. 200k+ km."

Issues Comparison

4.0 TDI V8 2

◆ CRITICAL
Timing chain complexity €2,000--€6,000 80,000 km--150,000 km
▲ HIGH
Injector failure (8 injectors) €1,500--€4,000 100,000 km--200,000 km

EA837 3.0T SC 3

● MODERATE
PCV (crankcase ventilation) valve failure €200--€500 60,000 km--130,000 km
● MODERATE
Thermostat housing failure €300--€700 60,000 km--130,000 km
● MODERATE
Water pump failure €500--€1,000 80,000 km--150,000 km

Models

4.0 TDI V8 3

Q7 4L 2007--2012 A8 D3 2005--2010 A8 D4 2010--2017

EA837 3.0T SC 8

A5 8T 2009--2016 A4 B8 2009--2015 Q5 8R 2013--2017 A8 D4 2010--2017 A6 C6 2008--2011 A7 4G 2010--2018 A6 C7 2011--2018 Q5 8R 2012--2017
Full 4.0 TDI V8 Report Full EA837 3.0T SC Report