Ignition coils / spark plugs
usually 80,000–150,000 km · Wear part
Signs: Misfire, flashing engine light
Fix: Replace coil and plugs
€100–300
Common faults, service intervals and costs
Opel Astra K
2015–2021
2
engines covered
8
known faults
213,742
roadworthiness tests in the statistics
9
official recalls
Enter your VIN and mileage and get a plan built for your exact engine and gearbox.
The Opel Astra K was built from 2015 to 2021.
For this generation we cover 2 engines and 8 known faults, each with the mileage range where it usually appears.
The most expensive known risk is CVT judder / belt noise: it usually appears at 100,000–180,000 km and costs €300–3,500 to fix.
In UK roadworthiness tests in 2024, at 50–100 thousand km this model most often failed on: lights, wipers and visibility (7.8 %), tyres and wheels (6.8 %), brakes (5.1 %). It fails more often than an average car of the same age and mileage on: brakes. It fails less often than average on: suspension.
Engines
| Engine | Fuel | Timing drive | Oil |
|---|---|---|---|
| 1.0 / 1.2 / 1.4 / 1.6 Turbo petrol (Opel, 2014–2022) | Petrol | Check manual | 5W-30 / 0W-20 · GM dexos · every 15,000 km |
| 1.6 CDTI | Diesel | Chain | 5W-30 / 0W-30 · dexos2 · ~4.9 L · every 15,000 km |
Faults by engine
1.0 / 1.2 / 1.4 / 1.6 Turbo petrol (Opel, 2014–2022)
Water pump
usually 100,000–160,000 km · Medium risk
Signs: Coolant loss
Fix: Replace pump
€250–500
Catalytic converter
usually 180,000–260,000 km · Medium risk
Signs: Rattle, efficiency code
Fix: Replace
€500–1,500
1.6 CDTI
AdBlue / NOx sensor
usually 80,000–160,000 km · Medium risk
Signs: AdBlue warning
Fix: Replace sensor
€300–700
Gearboxes
Manual
Clutch wear
usually 120,000–200,000 km · Medium risk
Signs: Slipping, high bite point
Fix: Replace clutch kit
€500–900
Automatic (Aisin AF40 / GM 6T40 / 6T45)
6T40 / 6T45 3-5-R wave plate
usually 80,000–200,000 km · High risk
model years 2008–2017 only
Signs: Loss of 3rd, 5th and reverse
Fix: Replace the wave plate (gearbox rebuild)
€1,200–2,500
AF40 valve body / harsh shifts
usually 100,000–200,000 km · Medium risk
Signs: Harsh or flared shifts
Fix: Fluid change; valve body repair
€300–1,200
CVT
CVT judder / belt noise
usually 100,000–180,000 km · Medium risk
Signs: Whine, judder under load
Fix: Fluid change or rebuild
€300–3,500
Scheduled service
Intervals and typical prices for the 1.0 / 1.2 / 1.4 / 1.6 Turbo petrol (Opel, 2014–2022) engine. Other engines differ in oil, timing drive and some filters; the app gives the exact plan.
| 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 |
| 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 |
Roadworthiness tests by mileage
Share of tests in the United Kingdom (DVSA MOT, 2024) that this model failed because of each system. Bold red means more often and green less often than an average car of the same age and mileage. Sample: 213,742 tests.
| thousand km | 0–50 | 50–100 | 100–150 | 150–200 | 200–250 | 250+ |
|---|---|---|---|---|---|---|
| Brakes | 2.4 % | 5.1 % | 5.9 % | 7.6 % | 7.9 % | 8.2 % |
| Suspension | 0.6 % | 2.3 % | 4.6 % | 6.6 % | 7.5 % | 10.5 % |
| Steering | 0.3 % | 0.4 % | 0.4 % | 0.5 % | 0.8 % | 0.7 % |
| Tyres and wheels | 3.9 % | 6.8 % | 10.1 % | 12.5 % | 13.0 % | 12.1 % |
| Lights, wipers and visibility | 3.8 % | 7.8 % | 12.4 % | 15.6 % | 17.1 % | 17.8 % |
| Body and corrosion | 0.4 % | 1.1 % | 2.0 % | 2.9 % | 3.2 % | 3.8 % |
| Exhaust, emissions and leaks | 0.9 % | 1.6 % | 3.0 % | 4.1 % | 3.7 % | 5.9 % |
Official recalls
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.
- Airbag Vauxhall cross carline Driver’s Airbag - Takata01/12/2025 · R/2025/511
- Engine / loss of power Vauxhall DV5R Engines Camshaft Chain.03/07/2025 · R/2025/245
- Doors / locks / lids Exterior door handles might stay open and the door will not be locked25/03/2022 · R/2022/081
- Brakes / ABS / ESP Incorrect tightening of the rear wheel hub bolts08/04/2021 · R/2021/124
- Seats The front seat back frame lower cross member structure may not be welded correctly29/10/2019 · R/2019/364
- Brakes / ABS / ESP Reduction in braking power where the brake pedal is applied slowly and constantly10/12/2018 · R/2018/332
- Brakes / ABS / ESP Front brake hoses incorrectly installed12/07/2018 · R/2018/174
- Airbag Front seat side airbag may deploy incorrectly17/03/2017 · R/2017/027
The other recalls (1) are listed in the app.
Sources and notes
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. 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.
Updated 07/10/2026