The 2.9-liter Volvo B6294S gasoline engine was produced by the company from 1998 to 2001 and was installed only on the S80 model before restyling, especially many of these cars from the USA. This power unit is essentially just an updated version of the well-known B6304S motor.
R6 2.8-3.0 L Volvo Modular family: B6284T, B6294S, B6294T, B6304S.
Specifications
| Production years | 1998-2001 |
| Displacement, cc | 2922 |
| Fuel system | injector |
| Power output, hp | 204 |
| Torque output, Nm | 280 |
| Cylinder block | aluminum R6 |
| Block head | aluminum 24v |
| Cylinder bore, mm | 83 |
| Piston stroke, mm | 90 |
| Compression ratio | 10.5 |
| Features | DOHC |
| Hydraulic lifters | yes |
| Timing drive | belt |
| Phase regulator | at the intake |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 6.9 |
| Fuel type | petrol |
| Euro standards | EURO 3 |
| Fuel consumption, L/100 km (for Volvo S80 2000) — city — highway — combined |
15.2 8.4 10.9 |
| Engine lifespan, km | ~330 000 |
| Weight, kg | 172 |
The engine was installed on:
- Volvo S80 I (184) in 1998 – 2001.
Disadvantages of the B6294S engine
- The bulk of the problems are delivered by the whimsical electric choke from Magneti Marelli;
- In second place according to complaints are oil leaks from the phase control system;
- Lubrication consumption due to clogged crankcase ventilation is also very common here;
- It is necessary to monitor the condition of the timing belt, since when it breaks, the valves bend;
- Weaknesses also include engine mounts, thermostat, pump and fuel pump.
Frequently asked questions about the Volvo B6294S
How much power does the Volvo B6294S make?
The Volvo B6294S develops 204 hp and 280 Nm of torque.
How much oil does the Volvo B6294S take and which one?
Engine oil capacity: 6.9 liters. Recommended oil: 5W-30.
Does the Volvo B6294S have a timing belt or chain?
The Volvo B6294S uses a timing belt.
Is the Volvo B6294S turbocharged?
No, the Volvo B6294S is naturally aspirated.
Does the Volvo B6294S need valve clearance adjustment?
No, the Volvo B6294S has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Volvo B6294S last?
The typical lifespan of the Volvo B6294S is ~330 000 km with proper maintenance.
What is the fuel consumption of the Volvo B6294S?
Volvo S80 2000: city 15.2, highway 8.4, combined 10.9 L/100 km.
What cars was the Volvo B6294S installed on?
Volvo S80 I (184) in 1998 - 2001.
What are the common problems of the Volvo B6294S?
The bulk of the problems are delivered by the whimsical electric choke from Magneti Marelli. In second place according to complaints are oil leaks from the phase control system. All known problems.
