The Subaru Impreza III Hatchback RF 1.5, produced between 2007 and 2011, represented an entry point into Subaru’s all-wheel-drive lineup for the European and Asian markets. Positioned as a practical and affordable option, this variant featured a 1.5-liter naturally aspirated boxer engine paired with a four-speed automatic transmission. It was part of the third generation Impreza (GE/GH/GR/GV chassis codes), which aimed to broaden the model’s appeal with a more refined interior and improved ride quality compared to its predecessors. The RF 1.5 served as a base model, offering standard Subaru reliability and all-weather capability at a competitive price point.
Technical Specifications
| Brand | Subaru |
| Model | Impreza |
| Generation | Impreza III Hatchback |
| Type | RF 1.5 (107 Hp) AWD Automatic |
| Start of production | 2007 |
| End of production | 2011 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Hatchback |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 9.8 l/100 km (24 US mpg, 28.8 UK mpg, 10.2 km/l) |
| Fuel consumption (extra urban) | 6.3 l/100 km (37.3 US mpg, 44.8 UK mpg, 15.9 km/l) |
| Fuel consumption (combined) | 7.5 l/100 km (31.4 US mpg, 37.7 UK mpg, 13.3 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 15.1 sec |
| Acceleration 0 – 62 mph | 15.1 sec |
| Acceleration 0 – 60 mph | 14.3 sec |
| Maximum speed | 167 km/h (103.77 mph) |
| Emission standard | Euro 4 |
| Weight-to-power ratio | 12.2 kg/Hp |
| Weight-to-torque ratio | 9.2 kg/Nm |
| Power | 107 Hp @ 6000 rpm |
| Torque | 142 Nm @ 4500 rpm (104.73 lb.-ft. @ 4500 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | EJ15 |
| Engine displacement | 1498 cm3 (91.41 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Boxer |
| Cylinder Bore | 77.7 mm (3.06 in.) |
| Piston Stroke | 79 mm (3.11 in.) |
| Compression ratio | 10.1:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated |
| Valvetrain | OHC |
| Engine oil capacity | 4.2 l (4.44 US qt | 3.7 UK qt) |
| Coolant capacity | 7.4 l (7.82 US qt | 6.51 UK qt) |
| Kerb Weight | 1310 kg (2888.06 lbs.) |
| Trunk (boot) space – maximum | 538 l (19 cu. ft.) |
| Fuel tank capacity | 60 l (15.85 US gal | 13.2 UK gal) |
| Length | 4415 mm (173.82 in.) |
| Width | 1740 mm (68.5 in.) |
| Height | 1475 mm (58.07 in.) |
| Wheelbase | 2620 mm (103.15 in.) |
| Front track | 1505 mm (59.25 in.) |
| Rear track | 1510 mm (59.45 in.) |
| Minimum turning circle | 10.6 m (34.78 ft.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears | 4 |
| Gearbox type | Automatic transmission |
| Front suspension | Independent, McPherson with coil spring and anti-roll bar |
| Rear suspension | Several levers and rods |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Tires size | 195/65 R15 |
| Wheel rims size | 15 |
Powertrain & Engine Architecture
The heart of the Impreza RF 1.5 was the EJ15 1.5-liter horizontally-opposed (boxer) four-cylinder engine. This engine, a hallmark of Subaru, was chosen for its compact size and inherent balance, contributing to smoother operation. The EJ15 featured a single overhead camshaft (SOHC) design and multi-point fuel injection. While not a high-performance engine, it was known for its reliability and reasonable fuel efficiency. The four-speed automatic transmission was a conventional torque converter type, prioritizing smooth shifts over outright performance. This transmission was selected to provide ease of use, particularly in urban environments, and appeal to a broader range of drivers. The engine code, EJ15, is crucial for identifying specific parts and maintenance requirements.
Driving Characteristics
The 107 horsepower and 104.73 lb-ft of torque produced by the RF 1.5 resulted in modest acceleration. The 0-60 mph time of around 14.3 seconds reflects this. The automatic transmission, while convenient, contributed to a less engaging driving experience compared to the available five-speed manual. Gear ratios were optimized for fuel economy and everyday drivability rather than sporty performance. The all-wheel-drive system provided excellent traction in various weather conditions, a key selling point for Subaru. However, the combination of the engine’s limited power and the automatic transmission’s conservative programming meant that overtaking maneuvers required careful planning. Compared to the more powerful 2.0-liter variants, the RF 1.5 felt noticeably slower, but it offered a more relaxed and fuel-efficient driving experience.
Equipment & Trim Levels
The RF 1.5 typically came with a fairly basic level of equipment. Standard features generally included air conditioning, power windows, central locking, and an audio system. Interior upholstery was typically cloth, and the dashboard featured a functional, if somewhat plain, design. Optional extras could include alloy wheels, a sunroof, and upgraded audio systems. The trim level was generally considered the entry-level offering within the Impreza range, focusing on providing essential features at an affordable price. Safety features, such as ABS and airbags, were standard equipment.
Chassis & Braking
The Impreza RF 1.5 utilized a McPherson strut front suspension and a multi-link rear suspension, providing a comfortable ride quality. The suspension was tuned for everyday use, prioritizing comfort over sporty handling. Front brakes were ventilated discs, while rear brakes were solid discs. The braking system was adequate for the vehicle’s weight and performance, but lacked the stopping power of the larger, more powerful Impreza models. The all-wheel-drive system distributed power to all four wheels, enhancing stability and traction, particularly on slippery surfaces.
Market Reception & Comparison
The Impreza RF 1.5 Automatic was generally well-received as a practical and reliable family car. Critics praised its all-wheel-drive system and fuel efficiency, but noted its lack of outright performance. Compared to the 2.0-liter Impreza models, the RF 1.5 offered lower running costs but sacrificed performance. It competed with other compact hatchbacks in the European and Asian markets, such as the Ford Focus and Volkswagen Golf, offering a unique selling point with its standard all-wheel drive. Fuel economy was competitive for its class, and reliability was generally considered good.
Legacy
The EJ15 engine, while not as celebrated as Subaru’s larger engines, proved to be a durable and reliable unit. The Impreza RF 1.5 Automatic remains a relatively affordable option in the used car market. Its simplicity and all-wheel-drive capability make it a practical choice for drivers in regions with inclement weather. While not a performance icon, the RF 1.5 represents a solid and dependable entry point into the Subaru brand, offering a blend of practicality, reliability, and all-weather capability that continues to appeal to budget-conscious buyers today. Common maintenance issues are generally limited to routine servicing, though checking for oil leaks (a common issue with boxer engines) is advisable when considering a used example.
