EcoBoost 1.6 vs Sigma 1.25

Side-by-side reliability comparison

Higher reliability score
Sigma 1.25 BUY 78/100
+46 points over EcoBoost 1.6
0 / 100
AVOID EcoBoost 1.6 Ford
0 / 100
BUY Sigma 1.25 Ford

Specifications

EcoBoost 1.6
Sigma 1.25
Brand
Ford
Ford
Verdict
AVOID
BUY
Reliability
32
78
Years
2010--2017
1996--2017
Displacement
1596 cc
1242 cc
Layout
I4
I4
Type
Petrol Turbo
Petrol Na
Power
150--182 hp
60--82 hp
Known Issues
2
1
Total Risk Cost
€5,000--€13,000
€50--€150

Character

EcoBoost 1.6

"Coolant leak into cylinders. Overheating risk. Multiple lawsuits. Focus/Escape/C-Max. Replaced by 1.5 EB (also problematic)."

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 1.6 2

◆ CRITICAL
Coolant intrusion into cylinders €3,000--€8,000 50,000 km--100,000 km
◆ CRITICAL
Cylinder head cracking €2,000--€5,000 60,000 km--120,000 km

Sigma 1.25 1

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

Models

EcoBoost 1.6 2

Focus Mk3 (DYB) 2011--2014 Fiesta Mk7 (JA8) 2013--2017

Sigma 1.25 3

Fiesta Mk6 (JD/JH) 2002--2008 Fiesta Mk7 (JA8) 2008--2017 Fiesta Mk7 (JA8) 2008--2017
Full EcoBoost 1.6 Report Full Sigma 1.25 Report