The Volvo S80 II 2.5 T, produced between 2006 and 2009, represented a significant step forward for Volvo’s flagship sedan. Positioned as a mid-range offering within the second-generation S80 (platform XS80), it bridged the gap between the entry-level 2.0L models and the more powerful 3.2L and V8 variants. This model aimed to deliver a balance of performance, comfort, and fuel efficiency, appealing to buyers seeking a refined executive car experience without the higher price tag of the top-tier trims. The S80 II itself was a crucial model for Volvo, representing a shift towards a more modern and luxurious design language, and a greater emphasis on safety technology.
Technical Specifications
| Brand | Volvo |
| Model | S80 |
| Generation | S80 II |
| Type (Engine) | 2.5 T (200 Hp) |
| Start of production | 2006 |
| End of production | 2009 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 13.6 l/100 km (17.3 US mpg, 20.8 UK mpg, 7.4 km/l) |
| Fuel consumption (extra urban) | 6.8 l/100 km (34.6 US mpg, 41.5 UK mpg, 14.7 km/l) |
| Fuel consumption (combined) | 9.3 l/100 km (25.3 US mpg, 30.4 UK mpg, 10.8 km/l) |
| CO2 emissions | 224 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 7.7 sec |
| Acceleration 0 – 62 mph | 7.7 sec |
| Acceleration 0 – 60 mph | 7.3 sec |
| Maximum speed | 235 km/h (146.02 mph) |
| Weight-to-power ratio | 7.7 kg/Hp, 129.9 Hp/tonne |
| Weight-to-torque ratio | 5.1 kg/Nm, 194.8 Nm/tonne |
| Power | 200 Hp @ 4800 rpm |
| Power per litre | 79.3 Hp/l |
| Torque | 300 Nm @ 1500-4500 rpm (221.27 lb.-ft. @ 1500-4500 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | B5254T6 |
| Engine displacement | 2521 cm3 (153.84 cu. in.) |
| Number of cylinders | 5 |
| Engine configuration | Inline |
| Cylinder Bore | 83 mm (3.27 in.) |
| Piston Stroke | 93.2 mm (3.67 in.) |
| Compression ratio | 9:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 5.5 l (5.81 US qt | 4.84 UK qt) |
| Coolant | 9 l (9.51 US qt | 7.92 UK qt) |
| Kerb Weight | 1540 kg (3395.12 lbs.) |
| Trunk (boot) space – minimum | 480 l (16.95 cu. ft.) |
| Fuel tank capacity | 70 l (18.49 US gal | 15.4 UK gal) |
| Max. roof load | 75 kg (165.35 lbs.) |
| Permitted trailer load with brakes (12%) | 1600 kg (3527.4 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Length | 4851 mm (190.98 in.) |
| Width | 1861 mm (73.27 in.) |
| Width including mirrors | 2106 mm (82.91 in.) |
| Height | 1493 mm (58.78 in.) |
| Wheelbase | 2835 mm (111.61 in.) |
| Front track | 1588 mm (62.52 in.) |
| Rear (Back) track | 1585 mm (62.4 in.) |
| Front overhang | 978 mm (38.5 in.) |
| Rear overhang | 1038 mm (40.87 in.) |
| Ride height (ground clearance) | 148 mm (5.83 in.) |
| Drag coefficient (Cd) | 0.29 |
| Minimum turning circle (turning diameter) | 11.7 m (38.39 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the front wheels of the vehicle. |
| Drive wheel | Front wheel drive |
| Number of gears and type of gearbox | 6 gears, manual transmission |
| Front suspension | Independent, type McPherson with coil spring and anti-roll bar |
| Rear suspension | Independent coil spring |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 225/55 R16 |
| Wheel rims size | 16 |
Powertrain & Engine Architecture
The heart of the S80 II 2.5 T is the Volvo B5254T6 engine, a 2.5-liter inline-five cylinder gasoline engine. This engine is a descendant of Volvo’s long-running white block engine family, known for its robustness and relatively simple design. The ‘T’ designation indicates the presence of a turbocharger and intercooler, significantly boosting power output. The B5254T6 utilizes multi-port fuel injection and a double overhead camshaft (DOHC) valvetrain, optimizing airflow and combustion efficiency. The engine produces 200 horsepower at 4800 rpm and 300 Nm (221 lb-ft) of torque between 1500 and 4500 rpm. The engine’s transverse mounting and front-wheel drive configuration were standard for this class of vehicle in Europe. The 6-speed manual transmission was the standard offering, providing drivers with direct control over the engine’s power.
Driving Characteristics
The 2.5 T offered a noticeable step up in performance compared to the base S80 models. Acceleration from 0 to 60 mph took approximately 7.3 seconds, making it a reasonably quick vehicle for its time. The turbocharger provided a surge of power in the mid-range, making overtaking maneuvers relatively effortless. While not as sporty as some of its German rivals, the S80 II 2.5 T provided a comfortable and composed driving experience. The 6-speed manual transmission allowed for precise gear selection, although the shift quality wasn’t universally praised. Compared to the higher-output 3.2L inline-six, the 2.5 T felt less refined and lacked the same level of overall power, but it offered a more fuel-efficient alternative.
Equipment & Trim Levels
The S80 II 2.5 T typically came equipped with a generous array of standard features, reflecting its positioning as a premium sedan. These included automatic climate control, power windows and mirrors, a premium audio system, and leather upholstery. Safety features were, as always with Volvo, a priority, with standard inclusion of ABS brakes, traction control, and multiple airbags. Optional extras included a sunroof, navigation system, and upgraded leather trim. The interior design was characterized by a clean, Scandinavian aesthetic, emphasizing simplicity and functionality.
Chassis & Braking
The S80 II utilized an independent suspension system on all four wheels, with McPherson struts at the front and a multi-link setup at the rear. This configuration provided a comfortable ride quality, absorbing bumps and imperfections in the road effectively. The braking system consisted of ventilated discs on all four wheels, providing ample stopping power. ABS (Anti-lock Braking System) was standard, enhancing safety and control during emergency braking situations. The chassis was designed to prioritize comfort and stability over outright sportiness, reflecting the S80’s role as a grand touring sedan.
Market Reception & Comparison
The S80 II 2.5 T was generally well-received by automotive critics, who praised its comfortable ride, spacious interior, and strong safety credentials. However, some reviewers noted that the engine lacked the refinement of its competitors and that the interior materials weren’t quite up to par with German luxury brands. Fuel economy was considered reasonable for a vehicle of its size and performance, averaging around 25.3 US mpg in combined driving. Compared to the 3.2L S80, the 2.5 T offered a more affordable entry point into the S80 range, but at the expense of some performance and refinement.
Legacy
The Volvo S80 II 2.5 T has proven to be a relatively reliable vehicle in the long term, with the B5254T6 engine generally considered durable and dependable. Common issues include turbocharger wear and occasional problems with the electronic throttle control system. Today, the S80 II 2.5 T represents an affordable and comfortable option in the used car market. Its combination of practicality, safety, and reasonable running costs makes it an appealing choice for buyers seeking a well-equipped and reliable sedan. While it may not offer the same level of prestige as some of its rivals, the S80 II 2.5 T remains a testament to Volvo’s commitment to building safe, comfortable, and long-lasting vehicles.
