The 3.0-litre turbo Volvo B6304T2 or 3.0 T6 engine was assembled in Wales from 2007 to 2010 and was installed in charged versions of popular models such as the S80, V70, XC60 and XC70. After the update in 2010, this unit became more powerful by 20 hp and changed the index to B6304T4.
Volvo SI6 family: B6304T2, B6304T4, B6324S, B6324S5.
Specifications
| Production years | 2007-2010 |
| Displacement, cc | 2953 |
| Fuel system | injector |
| Power output, hp | 285 |
| Torque output, Nm | 400 |
| Cylinder block | aluminum R6 |
| Block head | aluminum 24v |
| Cylinder bore, mm | 82 |
| Piston stroke, mm | 93.2 |
| Compression ratio | 9.3 |
| Features | DOHC |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | Dual VCT |
| Turbocharging | twin-scroll |
| Recommended engine oil | 0W-30 |
| Engine oil capacity, liter | 7.4 |
| Fuel type | petrol |
| Euro standards | EURO 4 |
| Fuel consumption, L/100 km (for Volvo S80 T6 2009) — city — highway — combined |
16.7 8.0 11.2 |
| Engine lifespan, km | ~300 000 |
| Weight, kg | 190 |
The engine was installed on:
- Volvo S80 II (124) in 2007 – 2010;
- Volvo V70 III (135) in 2007 – 2010;
- Volvo XC60 I (156) in 2008 – 2010;
- Volvo XC70 III (136) in 2007 – 2010.
Disadvantages of the B6304T2 engine
- Owners of cars with such a unit on the forum most often discuss oil consumption;
- Often, grease oozes around the timing chain cover or from under the vacuum pump;
- The failure of the oil separator here is usually accompanied by a whistle under the hood;
- The first years of engine production, the front cooling tube leaked and flooded the generator;
- Another weak point of the motor is a block of a pump and power steering, sitting on the same shaft.
Frequently asked questions about the Volvo B6304T2
How much power does the Volvo B6304T2 make?
The Volvo B6304T2 develops 285 hp and 400 Nm of torque.
How much oil does the Volvo B6304T2 take and which one?
Engine oil capacity: 7.4 liters. Recommended oil: 0W-30.
Does the Volvo B6304T2 have a timing belt or chain?
The Volvo B6304T2 uses a timing chain.
Is the Volvo B6304T2 turbocharged?
Yes, the Volvo B6304T2 is turbocharged (twin-scroll).
Does the Volvo B6304T2 need valve clearance adjustment?
No, the Volvo B6304T2 has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Volvo B6304T2 last?
The typical lifespan of the Volvo B6304T2 is ~300 000 km with proper maintenance.
What is the fuel consumption of the Volvo B6304T2?
Volvo S80 T6 2009: city 16.7, highway 8.0, combined 11.2 L/100 km.
What cars was the Volvo B6304T2 installed on?
Volvo S80 II (124) in 2007 - 2010; Volvo V70 III (135) in 2007 - 2010; Volvo XC60 I (156) in 2008 - 2010; Volvo XC70 III (136) in 2007 - 2010.
What are the common problems of the Volvo B6304T2?
Owners of cars with such a unit on the forum most often discuss oil consumption. Often, grease oozes around the timing chain cover or from under the vacuum pump. All known problems.
