2003 Subaru Impreza 1.5 15i Specs

OVERVIEW

With a fuel consumption of 33.6 mpg US - 40.3 mpg UK - 7.0 L/100km, a weight of 2777 lbs (1260 kg), the Subaru Impreza 1.5 15i has a horizontal opposite 4 cylinder SOHC16 valve engine, a Regular gasoline engine EJ15. This engine EJ15 produces a maximum power of 101.3 PS (100 bhp - 74.5 kW) at 5200 rpm and a maximum torque of 142.1 Nm (104.8 lb.ft - 14.5 kg.m) at 4000 rpm. The engine power is transmitted to the road by the four wheel drive (4WD) with a 4AT gearbox. For stopping power, the Subaru Impreza 1.5 15i braking system includes Leading trailing drum brake at the rear and Ventilated disk at the front. Stock tire sizes are 175/70 on 14 inch rims at the rear and 175/70 on 14 inch rims at the front. Chassis details - Subaru Impreza 1.5 15i has strut independent rear suspension and strut independent front suspension for road holding and ride confort.

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By Brian Wong, Reviewed by: Kurt Niebuhr, Updated on April 25, 2024

Introduction to the 2003-2004 Subaru Impreza 1.5 15i

The 2003-2004 Subaru Impreza 1.5 15i marked a specific period in the Impreza lineup, offering a blend of practicality and performance. This particular variant, known as the 1.5 15i, was available for a limited production period, spanning from September 2003 to May 2004.

Designed as a compact sedan, the 1.5 15i maintained Subaru's renowned all-wheel-drive system, providing reliable traction and stability. It's important to note that the 1.5 15i came equipped with a 4-speed automatic transmission, which was standard for this model.

Under the hood, the 2003-2004 Impreza 1.5 15i featured a 1.5-liter horizontally opposed 4-cylinder engine, identified by the engine code EJ15. This engine generated a respectable output of approximately 100 horsepower (or 101.3 PS) at 5200 rpm and a maximum torque of around 142.1 Nm at 4000 rpm. While not a powerhouse, this engine offered a balance between performance and fuel efficiency.

Speaking of fuel efficiency, the 1.5 15i achieved decent mileage, with a fuel consumption rating of approximately 33.6 mpg in the US (40.3 mpg in the UK) under the 10/15 mode test cycle. This made it a reasonable choice for those seeking an economical daily driver.

In terms of dimensions, the 2003-2004 Impreza 1.5 15i maintained a compact footprint. It measured approximately 441.5 cm in length, 169.5 cm in width, and 144 cm in height. With a wheelbase of 252.5 cm, it offered a relatively spacious interior for its class, accommodating up to five passengers across four doors.

Safety features included standard driver and passenger airbags, side impact bars, and safety belt pretensioners. While it lacked some of the advanced safety technologies seen in more modern vehicles, it adhered to safety standards of its time.

As for amenities, the 1.5 15i came with standard power windows, power steering, centralized door locks, and a tachometer. The interior design prioritized functionality over luxury, making it a practical choice for everyday use.

In summary, the 2003-2004 Subaru Impreza 1.5 15i offered a well-rounded package, combining Subaru's signature all-wheel-drive system, reasonable fuel efficiency, and a compact yet spacious design. During its production period, it catered to those seeking a reliable and versatile sedan for various driving conditions.

Engine Specifications

The heart of the 2003-2004 Subaru Impreza 1.5 15i lies in its engine, which, despite its modest size, provides a balance of performance and efficiency.

Powering this compact sedan is a 1.5-liter horizontally opposed 4-cylinder engine, identified by the engine code EJ15. This engine design, typical of Subaru's engineering, features a horizontally opposed layout, which helps lower the car's center of gravity for improved stability.

In terms of power output, the EJ15 engine produces around 100 horsepower (or 101.3 PS) at 5200 rpm. While not a high-performance engine, it offers sufficient power for daily driving needs, making it a practical choice for commuting and city driving.

Torque delivery is another essential aspect of the engine's performance. The EJ15 engine generates approximately 142.1 Nm of torque (or 104.8 lb.ft) at 4000 rpm. This torque curve helps provide adequate acceleration and responsiveness in various driving situations.

The engine is equipped with a single overhead camshaft (SOHC) configuration and 16 valves. This design contributes to the engine's fuel efficiency and helps maintain lower emissions, aligning with environmental standards.

When it comes to fuel type, the Impreza 1.5 15i runs on regular gasoline. This allows for more accessible refueling options and helps keep operating costs in check.

The engine's compression ratio is set at 10, contributing to its efficiency and power delivery. While it may not be a turbocharged performance engine, this engine was designed with a focus on practicality and reliability.

For those concerned about fuel efficiency, the Impreza 1.5 15i delivers approximately 33.6 mpg in the United States, 40.3 mpg in the United Kingdom, or 7.0 L/100km under the 10/15 mode test cycle. This makes it a reasonable choice for drivers looking to minimize fuel expenses.

In summary, the engine specifications of the 2003-2004 Subaru Impreza 1.5 15i highlight a well-balanced powerplant that combines practical horsepower and torque figures with commendable fuel efficiency. This engine complements the overall character of the vehicle, making it a versatile choice for a variety of driving scenarios.

Fuel Efficiency and MPG Ratings

Fuel efficiency is a key consideration for many car buyers, and the 2003-2004 Subaru Impreza 1.5 15i aims to strike a balance between performance and economical operation. This compact sedan is equipped with an engine that delivers respectable mileage under various driving conditions.

When it comes to fuel efficiency, the Impreza 1.5 15i offers commendable numbers. It achieves approximately 33.6 miles per gallon (mpg) in the United States, 40.3 mpg in the United Kingdom, or 7.0 liters per 100 kilometers under the 10/15 mode test cycle. These figures make it a practical choice for daily commuting and long-distance driving, allowing drivers to save on fuel expenses.

One contributing factor to the Impreza's fuel efficiency is its engine's design. The 1.5-liter horizontally opposed 4-cylinder engine, with its 16 valves and single overhead camshaft (SOHC) configuration, is engineered for a balance between power and economy. This design helps optimize combustion and reduce fuel consumption.

Additionally, the 1.5 15i benefits from Subaru's all-wheel-drive system, which enhances traction and stability. While all-wheel drive typically adds weight and can affect fuel economy in some vehicles, Subaru has managed to maintain competitive mileage figures without compromising on all-weather performance.

Drivers of the 2003-2004 Impreza 1.5 15i can appreciate its ability to provide a practical and economical driving experience without sacrificing the benefits of all-wheel drive. Whether navigating city streets or embarking on highway journeys, this Subaru variant offers a well-rounded package that appeals to those seeking a reliable and fuel-efficient daily driver.

Fuel Tank Capacity

The fuel tank capacity of the 2003-2004 Subaru Impreza 1.5 15i is an important specification to consider, as it directly impacts the vehicle's range between refueling stops. This compact sedan comes equipped with a fuel tank that holds approximately 13.2 US gallons (10.9 UK gallons or 50 liters) of gasoline.

A fuel tank of this size provides a reasonable balance between capacity and weight, allowing drivers to cover a respectable distance on a single tank of fuel. The 13.2-gallon capacity ensures that the Impreza 1.5 15i can handle daily commuting needs and longer journeys without the need for frequent refueling.

Combined with the car's commendable fuel efficiency, which is around 33.6 mpg in the United States or 40.3 mpg in the United Kingdom under the 10/15 mode test cycle, this fuel tank capacity contributes to a practical and cost-effective driving experience. It allows drivers to enjoy extended periods between visits to the fuel pump, making it a convenient choice for those who value efficiency and convenience in their daily commute or road trips.

Dimensions and Sizes

Understanding the dimensions and sizes of the 2003-2004 Subaru Impreza 1.5 15i is essential for gauging its suitability for various driving scenarios and parking conditions. This compact sedan offers a balance between a spacious interior and a manageable exterior footprint.

In terms of exterior dimensions, the Impreza 1.5 15i measures approximately 441.5 centimeters (173.81 inches) in length, 169.5 centimeters (66.73 inches) in width, and 144 centimeters (56.69 inches) in height. These dimensions place it squarely within the compact car segment, making it well-suited for navigating through urban traffic and fitting into parking spaces with ease.

The interior dimensions of the Impreza 1.5 15i contribute to its practicality. The interior length is about 189 centimeters (74.4 inches), providing ample legroom for both the front and rear passengers. The interior width measures around 138 centimeters (54.33 inches), ensuring comfortable seating for up to five passengers. The interior height comes in at approximately 118 centimeters (46.45 inches), providing adequate headroom.

With a wheelbase of 252.5 centimeters (99.4 inches), the Impreza 1.5 15i maintains stability while also contributing to its spacious interior. The front and rear axle lengths are roughly 146 centimeters (57.48 inches) and 145 centimeters (57.08 inches), respectively, ensuring balanced handling.

The ride height, or ground clearance, is measured at 15 centimeters (5.9 inches), striking a practical balance between ground clearance and stability. This allows the Impreza 1.5 15i to handle various road conditions, including uneven terrain.

With a weight of 1260 kilograms (2777 pounds), the vehicle maintains a manageable weight-to-size ratio, which contributes to its overall handling and fuel efficiency. It features four doors and can comfortably accommodate up to five passengers.

In summary, the dimensions and sizes of the 2003-2004 Subaru Impreza 1.5 15i make it a well-proportioned compact sedan. Its exterior dimensions allow for easy maneuvering in urban environments, while its interior provides sufficient space for passengers. These specifications, combined with its all-wheel-drive capability, make it an appealing choice for those seeking a practical and versatile vehicle.

Wheel Specifications

Wheel specifications are an important aspect of a vehicle's performance and overall appearance, and the 2003-2004 Subaru Impreza 1.5 15i is no exception. Let's delve into the wheel-related details of this compact sedan.

The Impreza 1.5 15i comes equipped with wheels that feature a size of 175/70 R14. This specification signifies the tire size, construction type, and rim diameter.

The first number, "175," represents the tire's width in millimeters. A wider tire can provide more stability and traction, which can be beneficial for a vehicle's handling characteristics.

The second number, "70," indicates the aspect ratio, which is the tire's profile height as a percentage of its width. In this case, it suggests that the tire's sidewall height is 70% of its width. A taller sidewall can contribute to a smoother ride and better absorption of road imperfections.

The "R" stands for radial construction, which is the most common tire construction type used in modern vehicles. Radial tires offer a good balance of performance, comfort, and durability.

Lastly, "14" represents the diameter of the wheel rim in inches. This specification is important for selecting appropriate replacement tires and ensuring they fit the vehicle's wheels correctly.

The 175/70 R14 wheel and tire combination aligns with the Impreza 1.5 15i's focus on practicality and efficiency. The size provides a comfortable ride while maintaining good traction and handling characteristics for everyday driving.

In summary, the wheel specifications of the 2003-2004 Subaru Impreza 1.5 15i feature a well-balanced tire size that contributes to the vehicle's overall performance and comfort. These specifications are in line with the practical and versatile nature of this compact sedan.

Trim Levels and Models

The 2003-2004 Subaru Impreza 1.5 15i was offered in a specific trim level known as the "1.5 15i." During this period, Subaru aimed to provide a balanced and practical option within the Impreza lineup, targeting drivers seeking reliable transportation with Subaru's signature all-wheel-drive capability.

As the name suggests, the "1.5 15i" trim was powered by a 1.5-liter engine, which offered a blend of performance and fuel efficiency suitable for daily driving needs. This trim level typically came with a 4-speed automatic transmission, providing smooth and convenient gear shifting.

While the Impreza 1.5 15i focused on practicality, it also included essential features for a comfortable driving experience. Standard amenities included power windows, power steering, centralized door locks, and a tachometer. These features catered to the convenience and functionality expected in a compact sedan.

The interior of the Impreza 1.5 15i offered seating for up to five passengers across four doors, making it a versatile choice for families and commuters alike. The spacious interior dimensions allowed passengers to enjoy a comfortable ride, even during longer journeys.

Safety was also a priority for Subaru, and the Impreza 1.5 15i included standard safety features such as driver and passenger airbags, side impact bars, safety belt pretensioners, and a durable frame. These features aimed to provide a secure driving environment for occupants.

While the Impreza 1.5 15i didn't feature some of the advanced amenities seen in higher trim levels, it delivered a well-rounded package suitable for everyday driving. It was an economical choice for those looking for a reliable sedan with the added benefit of Subaru's renowned all-wheel-drive system, which enhanced traction and stability in various weather conditions.

In summary, the 2003-2004 Subaru Impreza 1.5 15i was offered as a specific trim level within the Impreza lineup. It prioritized practicality, fuel efficiency, and all-wheel-drive capability, making it a dependable choice for drivers seeking a versatile and capable compact sedan.

Generations of the Impreza

The 2003-2004 Subaru Impreza 1.5 15i belongs to a specific generation of the Subaru Impreza, a model that has evolved over the years. Understanding the generational context provides insight into the vehicle's design and features.

During this period, the Subaru Impreza was in its second generation, often referred to as the "GC/GF" generation. This generation of the Impreza was produced from 1992 to 2000, with various updates and facelifts along the way.

The second-generation Impreza marked a significant step forward in terms of design and engineering. It featured a more refined and aerodynamic exterior compared to its predecessor, with smoother lines and a modernized appearance. The body style options included sedan and wagon variants, catering to different customer preferences.

Under the hood, the Impreza 1.5 15i featured a 1.5-liter horizontally opposed 4-cylinder engine, which was part of Subaru's renowned EJ series of engines. These engines were known for their reliability and efficiency.

One notable feature of this generation was Subaru's continued commitment to all-wheel drive (AWD) technology, which had become a defining characteristic of the Impreza lineup. The AWD system, coupled with the compact sedan's balanced design, contributed to its stable and capable performance, particularly in challenging road conditions.

Inside the cabin, the second-generation Impreza offered a comfortable and functional interior, with seating for up to five passengers and ample cargo space in the wagon variant. While it may not have featured the latest in high-tech amenities, it provided the essentials for an enjoyable driving experience.

In summary, the 2003-2004 Subaru Impreza 1.5 15i belonged to the second generation of the Impreza, known for its evolutionary design, all-wheel-drive capability, and practicality. This generation laid the foundation for the Impreza's reputation as a dependable and versatile compact sedan with enduring appeal.

Fuel Consumption Data

Understanding the fuel consumption data of the 2003-2004 Subaru Impreza 1.5 15i is crucial for budget-conscious drivers and those looking to minimize their environmental impact. This compact sedan offers respectable fuel efficiency, making it a practical choice for various driving needs.

Under standard testing conditions, the Impreza 1.5 15i achieves an approximate fuel consumption rate of 33.6 miles per gallon (mpg) in the United States, 40.3 mpg in the United Kingdom, or 7.0 liters per 100 kilometers. These figures are determined under the 10/15 mode test cycle, which simulates a combination of urban and highway driving conditions.

The ability to achieve over 30 mpg in the U.S. and around 40 mpg in the UK demonstrates the vehicle's efficiency in real-world driving scenarios. This level of fuel efficiency helps drivers save on fuel costs and reduce their carbon footprint.

Several factors contribute to the Impreza 1.5 15i's commendable fuel economy. Firstly, its engine, the 1.5-liter horizontally opposed 4-cylinder EJ15, is designed to balance power and efficiency. Additionally, Subaru's engineering focuses on optimizing combustion and reducing friction to enhance mileage.

The Impreza's relatively lightweight construction and aerodynamic design further improve fuel efficiency by reducing the energy required to propel the vehicle. The 4-speed automatic transmission is tuned to provide smooth gear changes, enhancing overall efficiency.

The combination of a modestly sized engine, efficient transmission, and all-wheel-drive system optimized for fuel economy makes the Impreza 1.5 15i a practical choice for drivers who prioritize minimizing their fuel expenses without compromising on the benefits of all-wheel drive.

In summary, the fuel consumption data for the 2003-2004 Subaru Impreza 1.5 15i reveals its efficiency as a compact sedan. These figures highlight its suitability for those seeking economical and environmentally-conscious transportation options while still enjoying the advantages of Subaru's all-wheel-drive technology.

Conclusion and Overall Specifications

Summarizing the overall specifications of the 2003-2004 Subaru Impreza 1.5 15i provides a comprehensive view of this compact sedan and its attributes.

The Impreza 1.5 15i, produced from September 2003 to May 2004, falls under the second generation of the Impreza lineup, known for its practicality and all-wheel-drive capability. It features a 1.5-liter horizontally opposed 4-cylinder engine, identified by the engine code EJ15. This engine, although not high-performance, strikes a balance between power and fuel efficiency, delivering around 100 horsepower at 5200 rpm and 142.1 Nm of torque at 4000 rpm.

The sedan's exterior dimensions measure approximately 441.5 centimeters in length, 169.5 centimeters in width, and 144 centimeters in height. The interior dimensions provide ample space for up to five passengers, with a wheelbase of 252.5 centimeters ensuring stability. The ground clearance is 15 centimeters, striking a practical balance for various road conditions.

The Impreza 1.5 15i's wheel specifications feature a tire size of 175/70 R14, which contributes to its overall performance and comfort. Its manageable weight of 1260 kilograms complements its compact size.

This trim level comes equipped with standard features such as power windows, power steering, centralized door locks, and a tachometer. Safety is addressed with driver and passenger airbags, side impact bars, and safety belt pretensioners.

One of its standout characteristics is fuel efficiency, achieving approximately 33.6 miles per gallon in the United States, 40.3 mpg in the United Kingdom, or 7.0 liters per 100 kilometers under the 10/15 mode test cycle. This makes it an economical choice for daily commuting and longer journeys.

In conclusion, the 2003-2004 Subaru Impreza 1.5 15i offers a well-rounded package, combining practicality, fuel efficiency, and all-wheel-drive capability. It caters to drivers seeking a dependable and versatile compact sedan, making it a suitable choice for a range of driving scenarios.

Frequently Asked Questions about the 2003-2004 Subaru Impreza 1.5 15i