Diesel · 2017–2022
Enter your VIN and mileage and get a plan built for your exact engine and gearbox.
All about the Opel Insignia BAll about the 2.0 CDTI (A20DTH / A20DTR) engine
The 2.0 CDTI (A20DTH / A20DTR) engine was fitted to the Opel Insignia B (2017–2022). In the EU that is 27.2 % of all new cars of this generation.
Versions: 2.0 170 hp, 2.0 209 hp.
The most expensive known risk is DPF clogging, oil level rising from interrupted regenerations: it usually appears at 60,000–200,000 km and costs €150–1,800 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: 'Oil pressure low - stop engine' warning, mostly on cold starts or after the car has stood for a day
Fix: Measure oil pressure with a gauge; remove the sump and replace the pickup pipe seal, or the oil pump / pressure regulator piston if worn; do not drive with the warning on
Signs: Power loss, jerky running, limp mode, EGR fault codes; falling coolant level points to the EGR cooler
Fix: Check EGR position in live data; clean or replace the valve; if coolant is lost, pressure-test and replace the EGR cooler
Signs: DPF warning, limp mode, frequent regenerations; oil level above max because fuel dilutes the oil; mostly short-trip cars
Fix: Check the differential pressure sensor and EGR, let regenerations finish on a longer drive or force one; change diluted oil early; clean or replace the DPF only if it is really full
Signs: Rough running, smoke, hard starting, power loss
Fix: Check injector corrections and return flow; recondition or replace the faulty injectors with new seals
Signs: Whistling, sudden power dip, limp mode, smoke
Fix: Check the boost hoses and intercooler pipes first; if the turbo has play or leaks oil, replace it and check the oil feed
Signs: Oil under the car and on a driveshaft, oil level dropping slowly
Fix: Clean and find the exact leak; replace the crankshaft front seal, or fit a new oil pump blanking plug tightened to 15 Nm
Signs: Slipping, high bite point
Fix: Replace clutch kit
Signs: Rattle at idle, vibration pulling away
Fix: Replace with clutch
Signs: Harsh or flared shifts
Fix: Fluid change; valve body repair
Typical routine maintenance cost for 100,000 km: €2,400–5,750. 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 Insignia B with the 2.0 CDTI (A20DTH / A20DTR) engine. The app gives the exact plan for your mileage.
| Item | Interval | Typical price |
|---|---|---|
| DPF health check (soot / ash load)Emissions | every 20,000 km | €0–60 |
| 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 |
| Fuel filterFuel | every 30,000 km or every 24 months | €40–110 |
| Glow plugsEngine | every 100,000 km | €120–300 |
| Auxiliary (serpentine) beltEngine | every 120,000 km | €70–180 |
| Coolant replacementCooling | every 150,000 km or every 96 months | €70–150 |
| Timing belt kit + water pumpEngine | every 150,000 km or every 120 months | €450–900 |
| 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 |
|---|---|---|---|---|
| 2.0 Diesel1,956 cm³ · 125 kW (170 hp) | 22.3 % | 2018–2021 | 160 g/km | 5.9 L |
| 2.0 Diesel1,956 cm³ · 154 kW (209 hp) | 4.9 % | 2018–2022 | 200 g/km | 7.4 L |
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 (15). 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: low oil pressure warning: oil pickup seal or oil pump (100,000–250,000 km, €300–1,000); DPF clogging, oil level rising from interrupted regenerations (60,000–200,000 km, €150–1,800); injector faults (soot, wear) (150,000–250,000 km, €300–1,600); boost hose cracks or turbo faults (100,000–220,000 km, €100–1,500).
Belt · 150,000 km / every 120 mo.
5W-30 · dexos2 · ~4.5 L · every 15,000 km.
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