EcoBoost 2.5 RS vs Sigma 1.25

Side-by-side reliability comparison

Higher reliability score
Sigma 1.25 BUY 78/100
+10 points over EcoBoost 2.5 RS
0 / 100
ACCEPTABLE EcoBoost 2.5 RS Ford
0 / 100
BUY Sigma 1.25 Ford

Specifications

EcoBoost 2.5 RS
Sigma 1.25
Brand
Ford
Ford
Verdict
ACCEPTABLE
BUY
Reliability
68
78
Years
2009--2018
1996--2017
Displacement
2522 cc
1242 cc
Layout
I5
I4
Type
Petrol Turbo
Petrol Na
Power
305--350 hp
60--82 hp
Known Issues
1
1
Total Risk Cost
€1,000--€3,000
€50--€150

Character

EcoBoost 2.5 RS

"Focus RS Mk2 (Volvo I5 turbo) and Mk3 (EcoBoost 2.3). Head gasket on RS Mk2. Mk3 has head gasket coolant-exhaust issue. Both high-performance. Fun but check history."

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 2.5 RS 1

▲ HIGH
Head gasket failure €1,000--€3,000 40,000 km--100,000 km

Sigma 1.25 1

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

Models

EcoBoost 2.5 RS 2

Focus Mk2 (DA3) 2010--2011 Focus Mk2 (DA3) 2009--2011

Sigma 1.25 3

Fiesta Mk6 (JD/JH) 2002--2008 Fiesta Mk7 (JA8) 2008--2017 Fiesta Mk7 (JA8) 2008--2017
Full EcoBoost 2.5 RS Report Full Sigma 1.25 Report