EcoBoost 1.5 4-cyl vs Sigma 1.25

Side-by-side reliability comparison

Higher reliability score
Sigma 1.25 BUY 78/100
+38 points over EcoBoost 1.5 4-cyl
0 / 100
AVOID EcoBoost 1.5 4-cyl Ford
0 / 100
BUY Sigma 1.25 Ford

Specifications

EcoBoost 1.5 4-cyl
Sigma 1.25
Brand
Ford
Ford
Verdict
AVOID
BUY
Reliability
40
78
Years
2014--present
1996--2017
Displacement
1499 cc
1242 cc
Layout
I4
I4
Type
Petrol Turbo
Petrol Na
Power
150--182 hp
60--82 hp
Known Issues
1
1
Total Risk Cost
€3,000--€7,000
€50--€150

Character

EcoBoost 1.5 4-cyl

"Shared coolant intrusion issues with 1.0 EB. More expensive to fix. Kuga/Focus. Multiple reports of sudden failure."

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 1.5 4-cyl 1

◆ CRITICAL
Coolant intrusion (inherited from 1.6) €3,000--€7,000 50,000 km--100,000 km

Sigma 1.25 1

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

Models

EcoBoost 1.5 4-cyl 7

Kuga Mk2 2014--2019 Kuga Mk2 2015--2019 Kuga Mk3 2020--present Mondeo Mk5 (CD391) 2018--2022 Focus 1.5 EcoBoost 4-cyl DYB 2014--2018 Hatchback Kuga 1.5 EcoBoost CBS 2012--2019 SUV Mondeo 1.5 EcoBoost CF 2014--2022 Sedan

Sigma 1.25 3

Fiesta Mk6 (JD/JH) 2002--2008 Fiesta Mk7 (JA8) 2008--2017 Fiesta Mk7 (JA8) 2008--2017
Full EcoBoost 1.5 4-cyl Report Full Sigma 1.25 Report