6.0 W12 vs EA837 3.0T SC

Side-by-side reliability comparison

Higher reliability score
EA837 3.0T SC BUY 82/100
+40 points over 6.0 W12
0 / 100
AVOID 6.0 W12 Audi
0 / 100
BUY EA837 3.0T SC Audi

Specifications

6.0 W12
EA837 3.0T SC
Brand
Audi
Audi
Verdict
AVOID
BUY
Reliability
42
82
Years
2003--2010
2008--2017
Displacement
5998 cc
2995 cc
Layout
V12
V6
Type
Petrol Na
Petrol Supercharged
Power
450 hp
272--354 hp
Known Issues
2
3
Total Risk Cost
€3,300--€10,900
€1,000--€2,200

Character

6.0 W12

"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."

EA837 3.0T SC

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

Issues Comparison

6.0 W12 2

◆ CRITICAL
4 timing chains + guides €3,000--€10,000 80,000 km--150,000 km
● MODERATE
Ignition coil failure (12 coils) €300--€900 40,000 km--80,000 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

6.0 W12 1

A8 D3 2003--2010

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 6.0 W12 Report Full EA837 3.0T SC Report