Duratec 3.0 V6 vs Sigma 1.25
Side-by-side reliability comparison
Higher reliability score
Sigma 1.25
BUY
78/100
+8 points over Duratec 3.0 V6
0
/ 100
ACCEPTABLE
Duratec 3.0 V6
Ford
0
/ 100
BUY
Sigma 1.25
Ford
Specifications
Duratec 3.0 V6
Sigma 1.25
Brand
Ford
Ford
Verdict
ACCEPTABLE
BUY
Reliability
70
78
Years
2003--2007
1996--2017
Displacement
2967 cc
1242 cc
Layout
V6
I4
Type
Petrol Na
Petrol Na
Power
226 hp
60--82 hp
Known Issues
1
1
Total Risk Cost
€200--€500
€50--€150
Character
Duratec 3.0 V6
"Mondeo III ST220. Ford/Porsche-developed Duratec V6. Chain driven. Oil consumption. Variable intake manifold (IMRC) runner issues. Beautiful engine note. Reliable with care."
Sigma 1.25
"Fiesta/Ka. Simple Yamaha co-developed engine. Timing chain (good). Reliable. Low power. Thermostat housing. Coil pack. Perfect first car/city car engine."
Issues Comparison
Duratec 3.0 V6 1
● MODERATE
IMRC runner flap failure
Sigma 1.25 1
○ MINOR
Thermostat housing crack