4.0 TDI V8 SQ7 vs EA837 3.0T SC

Side-by-side reliability comparison

Higher reliability score
EA837 3.0T SC BUY 82/100
+17 points over 4.0 TDI V8 SQ7
0 / 100
CAUTION 4.0 TDI V8 SQ7 Audi
0 / 100
BUY EA837 3.0T SC Audi

Specifications

4.0 TDI V8 SQ7
EA837 3.0T SC
Brand
Audi
Audi
Verdict
CAUTION
BUY
Reliability
65
82
Years
2016--present
2008--2017
Displacement
3956 cc
2995 cc
Layout
V8
V6
Type
Diesel
Petrol Supercharged
Power
435 hp
272--354 hp
Known Issues
1
3
Total Risk Cost
€800--€2,500
€1,000--€2,200

Character

4.0 TDI V8 SQ7

"SQ7/SQ8. Electric compressor + twin-turbo. Most complex diesel ever made. 48V system. EGR cooler. DPF/SCR. Phenomenal performance but any failure = very expensive."

EA837 3.0T SC

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

Issues Comparison

4.0 TDI V8 SQ7 1

▲ HIGH
EGR cooler failure €800--€2,500 60,000 km--120,000 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 SQ7 1

Q7 4M 2016--2020

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 SQ7 Report Full EA837 3.0T SC Report