The 2.5-liter Nissan QR25DD engine was produced from 2001 to 2007 at a factory in Japan and is massively found on only one Primera model in a sedan, as well as a station wagon. This power unit was known as very capricious and very demanding on fuel quality.
The QR family also includes internal combustion engines: QR20DE, QR20DD, QR25DE and QR25DER.
The engine was installed on:
- Nissan Primera 3 (P12) in 2001 – 2007.
Specifications
| Production years | 2001-2007 |
| Displacement, cc | 2488 |
| Fuel system | NEO-Di direct injection |
| Power output, hp | 170 |
| Torque output, Nm | 245 |
| Cylinder block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 89 |
| Piston stroke, mm | 100 |
| Compression ratio | 10.7 |
| Features | EGR |
| Hydraulic lifters | no |
| Timing drive | two chains |
| Phase regulator | inlet only |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 5.1 |
| Fuel type | petrol |
| Euro standards | EURO 4 |
| Fuel consumption, L/100 km (for Nissan Primera 2006) — city — highway — combined |
11.9 7.6 8.7 |
| Engine lifespan, km | ~220 000 |
| Weight, kg | 125 |
Disadvantages of the QR25DD engine
- Most complaints about the rapid contamination of injectors or the failure of the high pressure fuel pump;
- Due to the accelerated carbon formation, rings lie down and the oil burn begins;
- There are cases of destruction of the catalyst and stretching of the timing chain even up to 100,000 km;
- The engine does not like low temperatures and in cold winters you can suffer with it;
- Minor problems include thermostat glitches and leaks from under the valve cover.
