EcoBoost 1.0 (post-2018) vs Sigma 1.25

Side-by-side reliability comparison

Higher reliability score
Sigma 1.25 BUY 78/100
+6 points over EcoBoost 1.0 (post-2018)
0 / 100
ACCEPTABLE EcoBoost 1.0 (post-2018) Ford
0 / 100
BUY Sigma 1.25 Ford

Specifications

EcoBoost 1.0 (post-2018)
Sigma 1.25
Brand
Ford
Ford
Verdict
ACCEPTABLE
BUY
Reliability
72
78
Years
2018--present
1996--2017
Displacement
999 cc
1242 cc
Layout
I3
I4
Type
Petrol Turbo
Petrol Na
Power
100--155 hp
60--82 hp
Known Issues
2
1
Total Risk Cost
€650--€1,400
€50--€150

Character

EcoBoost 1.0 (post-2018)

"Coolant-into-cylinder issue resolved. Revised head gasket. Award-winning 3-cyl now actually reliable. Good city/commuter."

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

EcoBoost 1.0 (post-2018) 2

○ MINOR
Carbon buildup (DI 3-cyl) €250--€500 80,000 km--150,000 km
○ MINOR
Timing chain (building data) €400--€900 100,000 km--160,000 km

Sigma 1.25 1

○ MINOR
Thermostat housing crack €50--€150 60,000 km--120,000 km

Models

EcoBoost 1.0 (post-2018) 1

Fiesta 1.0 EcoBoost JA8 LCI 2018--2022 Hatchback

Sigma 1.25 3

Fiesta Mk6 (JD/JH) 2002--2008 Fiesta Mk7 (JA8) 2008--2017 Fiesta Mk7 (JA8) 2008--2017
Full EcoBoost 1.0 (post-2018) Report Full Sigma 1.25 Report