Opel Astra G — Reliability

G 2003–2004 1 engine

Reliability Summary

Engine Z16XEP/XE1 — 75/100 ACCEPTABLE
Known Issues 7

Engine in this model

ACCEPTABLE 75

Z16XEP/XE1

1.6 Twinport (Z16XEP)

Astra G/H, Meriva, Vectra C and Zafira B 1.6 16V. Twinport version (Z16XEP) and variable cam timing ...

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Known Issues Across All Engines

Issue Engine Severity Onset
Timing belt replacement (interference engine) Z16XEP/XE1 high —
Thermostat failure - overheating Z16XEP/XE1 moderate 50,000 km
Cam phaser solenoid sticking (Z16XER) Z16XEP/XE1 moderate —
Oil cooler leak - oil and coolant mix (Z16XER) Z16XEP/XE1 moderate 80,000 km
Twinport intake flap failure - loss of power Z16XEP/XE1 moderate —
Ignition coil / module failure - misfire Z16XEP/XE1 minor 70,000 km
Crankcase ventilation (PCV) diaphragm rupture Z16XEP/XE1 minor 80,000 km