1.8 TDCi vs Sigma 1.25

Side-by-side reliability comparison

Higher reliability score
Sigma 1.25 BUY 78/100
+18 points over 1.8 TDCi
0 / 100
CAUTION 1.8 TDCi Ford
0 / 100
BUY Sigma 1.25 Ford

Specifications

1.8 TDCi
Sigma 1.25
Brand
Ford
Ford
Verdict
CAUTION
BUY
Reliability
60
78
Years
2001--2012
1996--2017
Displacement
1753 cc
1242 cc
Layout
I4
I4
Type
Diesel
Petrol Na
Power
90--125 hp
60--82 hp
Known Issues
2
1
Total Risk Cost
€1,000--€2,700
€50--€150

Character

1.8 TDCi

"Focus/C-MAX. Prone to DMF failure, turbo issues, injector problems. EGR valve. DPF on later models. More troublesome than the DW10 2.0 TDCi. Budget for repairs."

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

1.8 TDCi 2

▲ HIGH
Dual-mass flywheel failure €500--€1,200 80,000 km--150,000 km
▲ HIGH
Turbo failure €500--€1,500 100,000 km--200,000 km

Sigma 1.25 1

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

Models

1.8 TDCi 6

Fiesta Mk4/Mk5 (JA/JB) 1998--2002 Focus Mk1 (DAW) 2001--2004 Mondeo Mk4 (BA7) 2007--2010 Mondeo Mk4 (BA7) 2007--2010 Focus Mk1 (DAW) 1998--2004 Focus Mk2 (DA3) 2005--2011

Sigma 1.25 3

Fiesta Mk6 (JD/JH) 2002--2008 Fiesta Mk7 (JA8) 2008--2017 Fiesta Mk7 (JA8) 2008--2017
Full 1.8 TDCi Report Full Sigma 1.25 Report