The Nissan Primera (P12) 2.5 i 16V, produced from 2002 to 2006, represented a significant offering in Nissan’s European and Asian markets. Positioned as a mid-to-upper trim level within the P12 Primera hatchback range, it aimed to provide a blend of performance, comfort, and practicality. The P12 generation, launched as a replacement for the P11 Primera, sought to elevate Nissan’s presence in the competitive mid-size family car segment. This 2.5-liter variant was particularly notable for offering a more spirited driving experience compared to the lower-displacement engines available in the lineup.
Technical Specifications
| Brand | Nissan |
| Model | Primera |
| Generation | Primera Hatch (P12) |
| Type (Engine) | 2.5 i 16V (170 Hp) |
| Start of production | 2002 |
| End of production | 2006 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Hatchback |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (combined) | 7.7 l/100 km (30.5 US mpg, 36.7 UK mpg, 13 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Maximum speed | 220 km/h (136.7 mph) |
| Weight-to-power ratio | 7.9 kg/Hp, 126.9 Hp/tonne |
| Weight-to-torque ratio | 5.5 kg/Nm, 182.8 Nm/tonne |
| Power | 170 Hp @ 5600 rpm |
| Power per litre | 68.3 Hp/l |
| Torque | 245 Nm @ 4000 rpm (180.7 lb.-ft. @ 4000 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | QR25DD |
| Engine displacement | 2488 cm3 (151.83 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 89 mm (3.5 in.) |
| Piston Stroke | 100 mm (3.94 in.) |
| Compression ratio | 10.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 5.1 l (5.39 US qt | 4.49 UK qt) |
| Kerb Weight | 1340 kg (2954.19 lbs.) |
| Max. weight | 1615 kg (3560.47 lbs.) |
| Max load | 275 kg (606.27 lbs.) |
| Trunk (boot) space – minimum | 450 l (15.89 cu. ft.) |
| Fuel tank capacity | 62 l (16.38 US gal | 13.64 UK gal) |
| Length | 4565 mm (179.72 in.) |
| Width | 1760 mm (69.29 in.) |
| Height | 1480 mm (58.27 in.) |
| Wheelbase | 2680 mm (105.51 in.) |
| Front track | 1530 mm (60.24 in.) |
| Rear (Back) track | 1535 mm (60.43 in.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the front wheels of the vehicle. |
| Drive wheel | Front wheel drive |
| Front suspension | Double wishbone |
| Rear suspension | 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 | Hydraulic Steering |
| Tires size | 205/60 R16 |
Powertrain & Engine Architecture
The heart of the Primera 2.5 i 16V is the QR25DD engine, a 2.5-liter inline-four cylinder powerplant. This engine utilizes multi-port fuel injection and a double overhead camshaft (DOHC) valvetrain, contributing to its relatively high output for its displacement. The QR25DD is a naturally aspirated engine, meaning it doesn’t employ forced induction like a turbocharger or supercharger. This design choice prioritized smooth, linear power delivery over peak horsepower figures. The engine’s 10.5:1 compression ratio further aids in maximizing efficiency and performance. The engine was paired with a four-speed automatic transmission, a common configuration for this class of vehicle at the time. While not offering the most advanced gear count, this transmission was known for its reliability and smooth operation.
Driving Characteristics
The Primera 2.5 i 16V Automatic offered a noticeable step up in performance compared to the 1.6L and 1.8L variants. The 170 horsepower and 245 Nm (180.7 lb-ft) of torque provided adequate acceleration for everyday driving and confident overtaking maneuvers. However, the four-speed automatic transmission meant that the engine could feel somewhat strained at highway speeds, lacking the relaxed cruising ability of more modern transmissions with additional gears. Compared to the manual transmission versions of the 2.5L Primera, the automatic offered less driver engagement but greater convenience. The automatic’s gear ratios were tuned for comfort and fuel economy rather than outright performance, resulting in a 0-60 mph time of around 9-10 seconds.
Equipment & Trim Levels
The 2.5 i 16V trim typically included features such as air conditioning, power windows, central locking, and an integrated audio system. Higher-spec models often added features like leather upholstery, alloy wheels, a sunroof, and automatic climate control. Safety features included ABS brakes and dual front airbags. The interior design was functional and well-built, though not particularly luxurious. The dashboard layout was straightforward and easy to use, prioritizing ergonomics and practicality. Optional extras included a navigation system and upgraded audio systems.
Chassis & Braking
The Primera P12 utilized a front double wishbone suspension and a rear coil spring suspension setup. This configuration aimed to provide a balance between ride comfort and handling precision. The 2.5 i 16V models typically featured ventilated disc brakes on all four wheels, providing ample stopping power. The ABS (Anti-lock Braking System) was standard, enhancing safety during emergency braking situations. Steering was via a hydraulic rack and pinion system, offering a responsive and predictable feel. The chassis was designed to be relatively lightweight, contributing to the car’s overall agility.
Market Reception & Comparison
The Nissan Primera 2.5 i 16V was generally well-received by automotive critics as a competent and reliable family car. It was praised for its comfortable ride, spacious interior, and strong engine performance. However, some critics noted that the interior design was somewhat bland and that the four-speed automatic transmission felt dated compared to competitors offering five or six-speed automatics. In terms of fuel economy, the 2.5L model was less efficient than the lower-displacement engines, achieving around 30.5 US mpg on the combined cycle. Compared to rivals like the Ford Mondeo and Volkswagen Passat, the Primera offered a competitive package with a focus on value and reliability.
Legacy
The QR25DD engine, found in the Primera 2.5 i 16V, has proven to be a relatively durable and reliable powerplant. While not without its potential issues (such as timing chain wear in some cases), it generally requires minimal maintenance and can withstand high mileage. Today, used examples of the Primera 2.5 i 16V are relatively affordable and represent a good value for buyers seeking a practical and dependable family car. The P12 Primera, while not a particularly iconic model, remains a respected vehicle among enthusiasts for its solid engineering and understated appeal. Its blend of performance and practicality continues to make it a viable option in the used car market.
