Z18XER vs 1.2 NA (Z12XEP)

Side-by-side reliability comparison

Higher reliability score
1.2 NA (Z12XEP) ACCEPTABLE 76/100
+4 points over Z18XER
0 / 100
ACCEPTABLE Z18XER Opel
0 / 100
ACCEPTABLE 1.2 NA (Z12XEP) Opel

Specifications

Z18XER
1.2 NA (Z12XEP)
Brand
Opel
Opel
Verdict
ACCEPTABLE
ACCEPTABLE
Reliability
72
76
Years
2005--2014
2000--2014
Displacement
1796 cc
1229 cc
Layout
I4
I4
Type
Petrol Na
Petrol Na
Power
140 hp
80 hp
Known Issues
1
5
Total Risk Cost
€400--€1,000
€590--€1,480

Character

Z18XER

"Astra H/J, Zafira B. Reliable workhorse. Timing chain can stretch at 150k+ km. Thermostat. Water pump. Good parts availability. Adequate performance."

1.2 NA (Z12XEP)

"Greek city car workhorse. Simple, cheap, 200k+ km proven. Chain tensioner is the one known weakness. Bulletproof otherwise."

Issues Comparison

Z18XER 1

● MODERATE
Timing chain stretch €400--€1,000 120,000 km--200,000 km

1.2 NA (Z12XEP) 5

● MODERATE
Timing chain tensioner wear €300--€700 80,000 km--150,000 km
○ MINOR
Ignition coil pack degradation €60--€180 60,000 km--120,000 km
○ MINOR
Thermostat failure €80--€200 80,000 km--150,000 km
○ MINOR
Water pump wear €100--€250 100,000 km--180,000 km
○ MINOR
Valve cover gasket seep €50--€150 100,000 km--200,000 km

Models

Z18XER 7

Astra F 1991--1998 Astra G 1998--2004 Vectra B 1995--2002 Zafira A 1999--2005 Vectra C 2002--2008 Astra H 2004--2010 Zafira B 2005--2014

1.2 NA (Z12XEP) 4

Corsa B 1998--2000 Agila 1.2 A 2000--2007 Hatchback Corsa 1.2 C 2000--2006 Hatchback Corsa 1.2 D 2006--2014 Hatchback
Full Z18XER Report Full 1.2 NA (Z12XEP) Report