2009-2012 Subaru Legacy V 2.5i (170 Hp) AWD Lineartronic

The Subaru Legacy V 2.5i, produced between 2009 and 2012, represented the fifth generation of Subaru’s mid-size sedan. This variant, equipped with a 2.5-liter naturally aspirated boxer engine producing 170 horsepower and paired with a Lineartronic continuously variable transmission (CVT) and symmetrical all-wheel drive, was a key offering in the North American market, where Subaru had cultivated a strong reputation for reliability and all-weather capability. The 2.5i trim occupied a middle ground in the Legacy V lineup, offering a balance of performance, features, and affordability compared to the more basic models and the higher-specification 2.5GT.

Technical Specifications

Brand Subaru
Model Legacy
Generation Legacy V
Type (Engine) 2.5i (170 Hp) AWD Lineartronic
Start of production 2009
End of production 2012
Powertrain Architecture Internal Combustion engine
Body type Sedan
Seats 5
Doors 4
Fuel consumption (urban) 10.2 l/100 km (23.1 US mpg)
Fuel consumption (extra urban) 7.5 l/100 km (31.4 US mpg)
Fuel Type Petrol (Gasoline)
Weight-to-power ratio 9 kg/Hp
Weight-to-torque ratio 6.7 kg/Nm
Power 170 Hp @ 5600 rpm
Power per litre 69.2 Hp/l
Torque 230 Nm @ 4000 rpm (169.64 lb.-ft. @ 4000 rpm)
Engine layout Front, Longitudinal
Engine Model/Code EJ253
Engine displacement 2457 cm3 (149.94 cu. in.)
Number of cylinders 4
Engine configuration Boxer
Cylinder Bore 99.5 mm (3.92 in.)
Piston Stroke 79 mm (3.11 in.)
Compression ratio 10:1
Number of valves per cylinder 4
Fuel injection system Multi-port manifold injection
Engine aspiration Naturally aspirated engine
Valvetrain SOHC
Engine oil capacity 4 l (4.23 US qt | 3.52 UK qt)
Coolant capacity 6.4 l (6.76 US qt | 5.63 UK qt)
Kerb Weight 1533-1565 kg (3379.69 – 3450.23 lbs.)
Trunk (boot) space 486 l (17.16 cu. ft.)
Fuel tank capacity 70 l (18.49 US gal | 15.4 UK gal)
Length 4735 mm (186.42 in.)
Width 1780 mm (70.08 in.)
Width including mirrors 1820 mm (71.65 in.)
Height 1505 mm (59.25 in.)
Wheelbase 2750 mm (108.27 in.)
Front track 1565 mm (61.61 in.)
Rear track 1570 mm (61.81 in.)
Ride height (ground clearance) 150 mm (5.91 in.)
Minimum turning circle 11.2 m (36.75 ft.)
Drive wheel All wheel drive (4×4)
Number of gears and type of gearbox automatic transmission Lineartronic
Front suspension Independent type McPherson
Rear suspension Double wishbone
Front brakes Ventilated discs
Rear brakes Disc
Assisting systems ABS (Anti-lock braking system)
Steering type Steering rack and pinion
Tires size 05/60 R16 91V; 215/50 R17 90V
Wheel rims size 6.5J x 16; 7.0J x 17

Powertrain & Engine Architecture

The heart of the 2.5i Legacy V was the EJ253 engine, a 2.5-liter horizontally opposed (boxer) four-cylinder. Subaru’s boxer engine design, with its pistons moving horizontally rather than vertically, offered inherent balance and a low center of gravity, contributing to the car’s handling characteristics. The EJ253 featured a single overhead camshaft (SOHC) design and multi-port fuel injection. This engine was known for its smooth operation and reasonable fuel efficiency, though it lacked the outright performance of the turbocharged engines offered in other Legacy variants. The Lineartronic CVT, replacing a traditional automatic transmission, was a key feature. This transmission utilized a belt and pulley system to provide a virtually infinite number of gear ratios, optimizing engine efficiency and providing smooth acceleration. The CVT was programmed with simulated “shift points” to mimic the feel of a conventional automatic for drivers accustomed to that experience.

Driving Characteristics

The 2.5i with the Lineartronic CVT delivered a comfortable and predictable driving experience. Acceleration was adequate for everyday driving, but not particularly brisk. The CVT’s continuously variable nature meant that the engine could operate at its most efficient RPM, resulting in smooth power delivery. However, some drivers found the CVT’s lack of distinct gear changes to be less engaging than a traditional automatic. The symmetrical all-wheel drive system provided excellent traction in all weather conditions, a hallmark of Subaru vehicles. Compared to the six-speed manual transmission available on some Legacy models, the CVT prioritized fuel economy and ease of use over sporty driving dynamics. The 2.5GT, with its turbocharged engine, offered significantly more power and a more responsive driving experience, but at a higher price point.

Equipment & Trim Levels

The 2.5i trim typically included standard features such as air conditioning, power windows and locks, a CD player with auxiliary input, and keyless entry. Higher trim levels, such as the Limited, added features like leather upholstery, a sunroof, and a premium audio system. Optional extras included a navigation system, heated seats, and a rear vision camera. The interior design of the 2.5i was functional and well-built, with a focus on practicality and comfort. The dashboard layout was straightforward and easy to use, with clearly labeled controls.

Chassis & Braking

The Legacy V utilized a McPherson strut front suspension and a double-wishbone rear suspension, providing a comfortable ride and predictable handling. The suspension was tuned to prioritize comfort over sporty handling, but still offered good body control. The 2.5i models were equipped with ventilated front disc brakes and solid rear disc brakes. Anti-lock braking system (ABS) was standard, enhancing safety and control during emergency braking situations. The steering was a rack-and-pinion system, providing precise and responsive steering feel.

Market Reception & Comparison

The Subaru Legacy V 2.5i was generally well-received by automotive critics. It was praised for its comfortable ride, spacious interior, standard all-wheel drive, and good safety ratings. However, some critics noted that the engine lacked the power of competitors and that the CVT transmission could feel somewhat unrefined. Fuel economy was competitive for its class, but not class-leading. Compared to the 2.5GT, the 2.5i offered a more affordable entry point into the Legacy lineup, but at the expense of performance. The 2.5i appealed to buyers who prioritized practicality, safety, and all-weather capability over sporty driving dynamics.

Legacy

The EJ253 engine and Lineartronic CVT combination proved to be relatively reliable in the long term. While CVTs, in general, have historically faced concerns about durability, Subaru’s Lineartronic transmission has demonstrated a reasonable track record. Common maintenance items included regular oil changes, coolant flushes, and CVT fluid changes. Today, used Subaru Legacy V 2.5i models are often sought after by buyers looking for an affordable, reliable, and all-weather capable sedan. Their reputation for durability and the continued availability of parts make them a practical choice for those seeking a used car with lasting value. The 2.5i remains a testament to Subaru’s commitment to building safe, reliable, and capable vehicles.

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