Catalytic converter / pre-cat (QR25DE)
Signs: Rattle from the exhaust, poor running — debris can enter the engine
Fix: Replace the catalyst
Petrol · 1,997 / 2,488 cm³ · 102–125 kW
Enter your VIN and mileage and get a plan built for your exact engine and gearbox.
Fuel: Petrol. Timing drive: chain.
In our database this engine is fitted to 4 model generations, among them: Nissan Qashqai (J10), Renault Koleos I, Nissan X-Trail (T31), Renault Koleos II.
The most expensive known risk is catalytic converter / pre-cat (QR25DE): it usually appears at 120,000–220,000 km and costs €500–1,200 to fix.
| Fuel | Petrol |
|---|---|
| Displacement | 1,997 / 2,488 cm³ |
| Power | 102–125 kW |
| Years | 2005–2020 |
| Timing drive | Chain |
| Oil | 5W-30 · API SN · ~4.4 L · every 15,000 km |
| Engine codes | MR20DE, QR25DE, M4R |
Faults that belong to the engine itself. They apply to every model with this engine, and each model has its own extra faults on its model page.
Signs: Rattle from the exhaust, poor running — debris can enter the engine
Fix: Replace the catalyst
Intervals and typical prices, using the Nissan Qashqai (J10) as an example. The app gives the exact plan for your car.
| Item | Interval | Typical price |
|---|---|---|
| Engine oil + oil filterEngine | every 15,000 km or every 12 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 |
Model generations this engine is fitted to.
Nissan Qashqai (J10) 2006–2014Nissan X-Trail (T31) 2007–2013Renault Koleos I 2008–2016Renault Koleos II 2016–
Chain.
5W-30 · API SN · ~4.4 L · every 15,000 km.
The faults with the highest risk: catalytic converter / pre-cat (QR25DE) (120,000–220,000 km, €500–1,200).
Nissan Qashqai (J10), Renault Koleos I, Nissan X-Trail (T31), Renault Koleos II.
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.
Updated 08/10/2026