Petrol · 2009–2015
Enter your VIN and mileage and get a plan built for your exact engine and gearbox.
All about the Opel Astra JAll about the 1.4 Turbo (A14NET) engine
The 1.4 Turbo (A14NET) engine was fitted to the Opel Astra J (2009–2015). In the EU that is 20.9 % of all new cars of this generation.
Versions: 1.4 140 hp.
The most expensive known risk is piston ring sticking or breakage: oil consumption, low compression: it usually appears at 40,000–180,000 km and costs €200–3,500 to fix.
✓ The faults of this engine were checked against sources (10/2026). Each item has at least two independent sources or an official recall or parts-maker technical note.
Signs: High oil use (around 1 L per 1,000 km), misfire P0300, power loss, blue smoke
Fix: Measure oil use, then do compression and leak-down tests and a borescope check; replace pistons and rings, or the short block if the bores are damaged
Signs: Whistle or howl from the cam cover, rough idle, lean codes, oil filler cap hard to remove with the engine running
Fix: Replace the cam cover with the integrated PCV valve (the membrane is not sold separately by Opel); check the intake side check valve too
Signs: Coolant loss, white or pink crust under the pump, overheating warning
Fix: Replace the water pump and gasket, refill and bleed the system; do not drive when overheating
Signs: Slow coolant loss and smell when hot, while a cold pressure test often looks fine
Fix: Pressure-test the system hot; replace the plastic thermostat housing or the turbo coolant lines and seals, and check the expansion tank and cap
Signs: Underboost P0299, whistle, shaft play, oil in the intake
Fix: Check boost control and the wastegate actuator first; when replacing the turbo, also replace the oil feed and return lines and change the oil
Signs: Whining from the gearbox rising with speed, worst in 5th/6th under load; gear lever rocks back and forth on throttle and braking.
Fix: Have it checked early; a specialist replaces the bearings (ideally the upgraded larger-bearing kit) before the shaft or housing is damaged, and the gear oil is changed.
Signs: Several electrical faults at once: central locking, horn, wipers or lights fail, car may not start; wet carpet in the passenger footwell.
Fix: Check and refit the A/C condensate drain and air distributor; replace and program the BCM if water has got in.
Signs: Clunk over bumps or when steering, car sits lower on one corner, spring flagged at inspection.
Fix: Replace the springs in pairs per axle and check the strut top mounts and dampers.
Signs: Handbrake fails the inspection test, rear wheel runs hot or drags, uneven rear pad wear.
Fix: Clean and grease the rear caliper slide pins, free up the handbrake mechanism and cables, renew pads (and calipers if seized).
Signs: Parking brake shows applied when it is not, or hill-start assist releases early; the car may roll away.
Fix: Check the VIN for both open campaigns; the dealer updates the software free of charge.
Signs: No warning; a loose battery cover jams the fan, the engine can overheat and the fan wiring can catch fire.
Fix: Check the VIN; the dealer removes or secures the cover and fits an extra fan wiring adapter free of charge.
Signs: Gear lever stiff or impossible to move in frost, gears hard to select.
Fix: Replace the affected shift cable.
Signs: Slipping, high bite point
Fix: Replace clutch kit
Signs: Rattle at idle, vibration pulling away
Fix: Replace with clutch
Signs: Loss of 3rd, 5th and reverse
Fix: Replace the wave plate (gearbox rebuild)
Signs: Harsh or flared shifts
Fix: Fluid change; valve body repair
Typical routine maintenance cost for 100,000 km: €2,200–4,950. Sum of the services and wear parts in the plan above (about 15,000 km a year, independent workshop), without faults.
Intervals and typical prices for the Opel Astra J with the 1.4 Turbo (A14NET) engine. The app gives the exact plan for your mileage.
| Item | Interval | Typical price |
|---|---|---|
| Engine oil + oil filterEngine | every 15,000 km or every 12 months | €70–150 |
| Cabin (pollen) filterClimate | every 15,000 km or every 12 months | €15–40 |
| Brake fluidBrakes | every 24 months | €50–95 |
| A/C service (regas + desiccant)Climate | every 24 months | €70–150 |
| Air filterEngine | every 30,000 km or every 24 months | €15–45 |
| Spark plugsIgnition | every 60,000 km or every 48 months | €50–160 |
| Auxiliary (serpentine) beltEngine | every 120,000 km | €70–180 |
| Coolant replacementCooling | every 150,000 km or every 96 months | €70–150 |
| Timing chain inspection (listen on cold start)Engine | every 150,000 km | €0–120 |
| Manual gearbox oilTransmission | every 150,000 km | €60–130 |
| Front brake padsBrakes | usually at 30,000–60,000 km | €60–150 |
| Front brake discs + padsBrakes | usually at 60,000–120,000 km | €150–320 |
| Rear brake padsBrakes | usually at 50,000–90,000 km | €50–130 |
| Tyres (set of 4)Wheels | usually at 40,000–60,000 km | €320–700 |
| Wiper bladesBody | checked at service | €20–50 |
| 12V batteryElectrical | checked at service | €100–220 |
| Version | Share | Years | CO₂ | Fuel use |
|---|---|---|---|---|
| 1.4 Petrol1,364 cm³ · 103 kW (140 hp) | 6.5 % | 2011–2014 | — | — |
| 1.4 Petrol1,362 cm³ · 103 kW (140 hp) | 5.8 % | 2011–2014 | — | — |
Source: European Environment Agency (EEA), monitoring of CO₂ emissions from new passenger cars, CC BY 4.0. CO₂ and fuel use are official type-approval values (WLTP from 2021), not real-world consumption.
Recalls the manufacturer published in the United Kingdom for this model (9). The same recalls usually apply across Europe. Ask an authorised dealer to check by VIN whether your car is affected and whether the work has been done.
The faults with the highest risk: piston ring sticking or breakage: oil consumption, low compression (40,000–180,000 km, €200–3,500); turbo damage from oil feed deposits or a stiff wastegate (P0299) (100,000–200,000 km, €150–1,400); A/C condensate water reaches the body control module (BCM) (30,000–200,000 km, €100–600); PCV membrane in the cam cover tears (60,000–160,000 km, €150–450).
Chain.
5W-30 · dexos2 · ~4.0 L · every 15,000 km.
1.7 CDTI / DTI / VCDi (Isuzu)1.6 / 1.8 16v Ecotec (Opel Family 1: Z16XER / Z18XER)1.4 Twinport / Ecotec (Opel Family 0)2.0 CDTI (A20DTH / A20DTR)1.6 CDTI
Opel Mokka / Mokka X 2012–2019Opel Meriva B 2010–2017Opel Zafira Tourer C 2011–2019
Main sources for the faults of this engine:
Faults, intervals and prices are indicative and collected from public sources and owner experience; always rely on the service book and a qualified workshop. Test statistics: DVSA – Anonymised MOT tests and results, Open Government Licence v3.0. Dutch tests: RDW Open Data (CC0). Engine versions: EEA, monitoring of CO₂ emissions from new passenger cars (CC BY 4.0, DG CLIMA). Owner complaints: NHTSA ODI (public domain). Recalls: DVSA Vehicle Safety Branch Recalls Database, OGL v3.0. Brand and model names are trademarks of their owners and are used only to describe the vehicles. How we check the data →
Updated 29/10/2026