The 2.5-liter turbo Volvo B5254T6 engine was assembled at the plant in Sweden from 2006 to 2009 and was installed only on two models of the company: the second generation S80 or the third generation V70. This power unit was installed on the popular Ford Kuga crossover under the HYDB index.
R5 2.5 L Volvo Modular family: B5252S, B5254S, B5254T, B5254T2, B5254T3, B5254T4, B5254T6.
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 |
| Weight, kg | 180 |
The engine was installed on:
- Volvo S80 II (124) in 2006 – 2009;
- Volvo V70 III (135) in 2007 – 2009.
Disadvantages of the B5254T6 engine
- The main problem with this engine is the failure of the phase control system;
- Often there is lubricant consumption due to clogged crankcase ventilation or turbine shaft wear;
- All kinds of pipes often burst, especially the one that goes to the turbocharger;
- Change the timing belt more often than the scheduled 120,000 km, or if it breaks, the valves will bend;
- Other weak points: water pump, camshaft seals, fuel pump, engine mounts.
Frequently asked questions about the Volvo B5254T6
How much power does the Volvo B5254T6 make?
The Volvo B5254T6 develops 200 hp and 300 Nm of torque.
How much oil does the Volvo B5254T6 take and which one?
Engine oil capacity: 5.5 liters. Recommended oil: 5W-30.
Does the Volvo B5254T6 have a timing belt or chain?
The Volvo B5254T6 uses a timing belt.
Is the Volvo B5254T6 turbocharged?
Yes, the Volvo B5254T6 is turbocharged (BorgWarner K04).
Does the Volvo B5254T6 need valve clearance adjustment?
Yes, there are no hydraulic lifters, so the valve clearances have to be checked and adjusted periodically.
How long does the Volvo B5254T6 last?
The typical lifespan of the Volvo B5254T6 is ~320 000 km with proper maintenance.
What is the fuel consumption of the Volvo B5254T6?
Volvo S80 2008: city 15.2, highway 7.3, combined 10.2 L/100 km.
What cars was the Volvo B5254T6 installed on?
Volvo S80 II (124) in 2006 - 2009; Volvo V70 III (135) in 2007 - 2009.
What are the common problems of the Volvo B5254T6?
The main problem with this engine is the failure of the phase control system. Often there is lubricant consumption due to clogged crankcase ventilation or turbine shaft wear. All known problems.
