The 2.9-liter twin-turbo Volvo B6294T engine was produced by the company from 2001 to 2006 and was installed on the top modifications of the S80 sedan and XC90 SUV under the T6 index. This power unit is essentially a slightly updated version of the well-known B6284T motor.
R6 2.8-3.0 L Volvo Modular family: B6284T, B6294S, B6294T, B6304S.
Specifications
| Production years | 2001-2006 |
| Displacement, cc | 2922 |
| Fuel system | injector |
| Power output, hp | 272 |
| Torque output, Nm | 380 |
| Cylinder block | aluminum R6 |
| Block head | aluminum 24v |
| Cylinder bore, mm | 83 |
| Piston stroke, mm | 90 |
| Compression ratio | 8.5 |
| Features | DOHC, intercooler |
| Hydraulic lifters | yes |
| Timing drive | belt |
| Phase regulator | at intake and exhaust |
| Turbocharging | twin-turbocharged |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 6.7 |
| Fuel type | petrol |
| Euro standards | EURO 4 |
| Fuel consumption, L/100 km (for Volvo XC90 2003) — city — highway — combined |
18.5 9.6 12.9 |
| Engine lifespan, km | ~250 000 |
| Weight, kg | 187 |
The engine was installed on:
- Volvo S80 I (184) in 2001 – 2006;
- Volvo XC90 I (275) in 2002 – 2006.
Disadvantages of the B6294T engine
- Twin-turbo unit is famous not only for high consumption, but also for expensive spare parts;
- The weak point of this motor is the phase regulators, they often break and flow;
- Also, the fan control unit and the fuel pump regularly fail here;
- The timing belt does not always serve the prescribed 100,000 km, and when it breaks, the valves bend;
- Other problems include air leakage in the intake and low resource of engine mounts.
Frequently asked questions about the Volvo B6294T
How much power does the Volvo B6294T make?
The Volvo B6294T develops 272 hp and 380 Nm of torque.
How much oil does the Volvo B6294T take and which one?
Engine oil capacity: 6.7 liters. Recommended oil: 5W-30.
Does the Volvo B6294T have a timing belt or chain?
The Volvo B6294T uses a timing belt.
Is the Volvo B6294T turbocharged?
Yes, the Volvo B6294T is turbocharged (twin-turbocharged).
Does the Volvo B6294T need valve clearance adjustment?
No, the Volvo B6294T has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Volvo B6294T last?
The typical lifespan of the Volvo B6294T is ~250 000 km with proper maintenance.
What is the fuel consumption of the Volvo B6294T?
Volvo XC90 2003: city 18.5, highway 9.6, combined 12.9 L/100 km.
What cars was the Volvo B6294T installed on?
Volvo S80 I (184) in 2001 - 2006; Volvo XC90 I (275) in 2002 - 2006.
What are the common problems of the Volvo B6294T?
Twin-turbo unit is famous not only for high consumption, but also for expensive spare parts. The weak point of this motor is the phase regulators, they often break and flow. All known problems.
