EcoBoost 2.3 vs Sigma 1.25

Side-by-side reliability comparison

Higher reliability score
Sigma 1.25 BUY 78/100
+4 points over EcoBoost 2.3
0 / 100
ACCEPTABLE EcoBoost 2.3 Ford
0 / 100
BUY Sigma 1.25 Ford

Specifications

EcoBoost 2.3
Sigma 1.25
Brand
Ford
Ford
Verdict
ACCEPTABLE
BUY
Reliability
74
78
Years
2015--present
1996--2017
Displacement
2261 cc
1242 cc
Layout
I4
I4
Type
Petrol Turbo
Petrol Na
Power
270--350 hp
60--82 hp
Known Issues
2
1
Total Risk Cost
€1,400--€3,300
€50--€150

Character

EcoBoost 2.3

"Focus RS/Mustang engine. Strong output. RS head gasket recall addressed. Mustang application very reliable."

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 2.3 2

● MODERATE
Carbon buildup (high-output DI) €400--€800 50,000 km--100,000 km
● MODERATE
Turbo wear under hard use €1,000--€2,500 80,000 km--150,000 km

Sigma 1.25 1

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

Models

EcoBoost 2.3 5

Focus Mk4 2019--2025 Focus Mk3 (DYB) 2016--2018 Focus RS 2.3 EcoBoost DYB 2016--2018 Hatchback Focus ST 2.3 EcoBoost DEH 2019--2024 Hatchback Mustang 2.3 EcoBoost S550 2015--2024 Coupe

Sigma 1.25 3

Fiesta Mk6 (JD/JH) 2002--2008 Fiesta Mk7 (JA8) 2008--2017 Fiesta Mk7 (JA8) 2008--2017
Full EcoBoost 2.3 Report Full Sigma 1.25 Report