Only two of the company’s models—the second generation S80 and the third generation V70—were equipped with the 2.5-liter turbo Volvo B5254T6 engine, which was manufactured at the plant in Sweden between 2006 and 2009. The well-liked Ford Kuga crossover was equipped with this power unit under the HYDB index.
The B5252S, B5254S, B5254T, B5254T2, B5254T3, B5254T4, and B5254T6 are the five-cylinder, 2.5-liter modular engine family.
The engine was mounted on:
- Volvo S80 II (124) in 2006 – 2009;
- Volvo V70 III (135) in 2007 – 2009.
Specifications
| Production years | 2006-2009 |
| Displacement, cc | 2522 |
| Fuel system | injector |
| Power output, hp | 200 |
| Torque output, Nm | 300 |
| Cylinder block | aluminum R5 |
| Block head | aluminum 20v |
| Cylinder bore, mm | 83 |
| Piston stroke, mm | 93.2 |
| Compression ratio | 9.0 |
| Features | DOHC |
| Hydraulic lifters | no |
| Timing drive | belt |
| Phase regulator | Dual CVVT |
| Turbocharging | BorgWarner K04 |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 5.5 |
| Fuel type | petrol |
| Euro standards | EURO 4 |
| Fuel consumption, L/100 km (for Volvo S80 2008) — city — highway — combined |
15.2 7.3 10.2 |
| Engine lifespan, km | ~320 000 |
Disadvantages of the B5254T6 engine
The phase control system’s failure is this engine’s primary issue;
Lubricant consumption frequently results from turbine shaft wear or clogged crankcase ventilation;
Pipes of all kinds frequently burst, particularly the one that supplies the turbocharger;
Additional weak points include the water pump, camshaft seals, fuel pump, and engine mounts; replace the timing belt more frequently than the planned 120,000 km or the valves will bend if it breaks.