1.4 Turbo (A14NET)
2011–2017 · petrol · 1364cc · 140hp
Engine codes: A14NET
Reliability, common problems and owner reviews for the Opel Insignia A 1.4 Turbo (A14NET). Check this before you buy used.
The 1.4 Turbo (A14NET) is the small-capacity petrol that makes the big Insignia affordable to tax and run — willing enough around town but working hard fully loaded. It's a turbo engine, so the cautions are turbo and PCV care, occasional water-pump/thermostat leaks, and timing-chain attention. A serviced example with clean oil history is dependable; it just doesn't love being lugged at low revs under load.
Same engine, other cars
This is the same physical engine (A14NET) sold under different names across brands. Reliability is broadly shared — cross-check these:
Known Issues
Turbo and PCV system want clean oil; coking/oil-control issues on neglect.
Fix / Workaround: Strict oil changes; check PCV; let turbo cool.
Repair cost: €200–€900
Typically appears after: 120,000 km
Coolant pump/thermostat housing can leak.
Fix / Workaround: Replace pump/housing.
Repair cost: €150–€450
Typically appears after: 110,000 km
Mileage Thresholds
After 150,000 km: Turbo + cooling attention.
Pre-Purchase Checklist
- ☐Oil-change discipline (turbo/PCV)
- ☐Coolant leak check
- ☐Works hard when loaded
Frequently asked questions
Is the Opel Insignia A 1.4 Turbo (A14NET) reliable?
Maint. Sensitive — The 1.4 Turbo (A14NET) is the small-capacity petrol that makes the big Insignia affordable to tax and run — willing enough around town but working hard fully loaded. It's a turbo engine, so the cautions are turbo and PCV care, occasional water-pump/thermostat leaks, and timing-chain attention. A serviced example with clean oil history is dependable; it just doesn't love being lugged at low revs under load.
What are the common problems and reviews for the Opel Insignia A 1.4 Turbo (A14NET)?
The most commonly reported problems: Turbo / PCV, Water pump / thermostat.
Is a used Opel Insignia A 1.4 Turbo (A14NET) worth buying?
Fine if serviced correctly — but it punishes neglect hard. History and the right consumables matter.