Parts for your 2019 Subaru Impreza-Power steering pump

Power Steering Pump on the 2019 Subaru Impreza: What You Need to Know

The 2019 Subaru Impreza does not use a traditional power steering pump. Instead, this model is equipped with an electric power steering system, commonly known as electric power-assisted steering (EPAS). This modern setup takes the place of the conventional hydraulic power steering pump found in older vehicles and some competitors.

So, why ditch the power steering pump? The traditional power steering systems rely on a hydraulic pump driven by the engine's accessory belt. This pump circulates hydraulic fluid to assist the driver in turning the wheel, making steering easier especially during low-speed manoeuvres or parking. However, these hydraulic pumps require more engine power to run, which can affect fuel efficiency. They also involve more moving parts, so they tend to need more maintenance over time.

On the other hand, electric power steering uses an electric motor to provide steering assistance. This motor is controlled by a computer that adjusts assistance based on factors like vehicle speed and steering input. Because there's no hydraulic pump or fluid, the system is simpler mechanically, which means less maintenance and improved reliability.

The 2019 Subaru Impreza employs this kind of electric power steering for several reasons. Firstly, it improves fuel economy. Without a belt-driven pump constantly drawing power from the engine, the vehicle uses less fuel. Secondly, the electric system can vary the level of assistance more precisely. At higher speeds, the system may reduce assistiveness for better road feel and control, while ramping up support during parking or low-speed driving. Lastly, it reduces environmental impact by eliminating hydraulic fluid leaks, which can be harmful and tricky to tidy up.

Now, since the 2019 Subaru Impreza does not have a power steering pump, it also does not require the usual maintenance that comes with hydraulic power steering systems. Traditional pumps need periodic checks and sometimes replacement due to wear or leaks, and the power steering fluid must be regularly inspected and replaced. None of this applies to the Subaru's electric power steering.

That said, like any component, the electric power steering system still benefits from regular inspections during servicing. Technicians often perform electronic diagnostics to ensure the motor and sensors are functioning correctly. Steering responsiveness and any warning lights on the dashboard should be checked as part of routine maintenance. If you suspect any steering issues, it's best to have them looked at promptly since the electric system relies heavily on sensors and software for smooth operation.

Overall, while you won't find a power steering pump under the bonnet of the 2019 Subaru Impreza, the electric power steering system fitted instead offers a neat blend of efficiency, reliability, and ease of use. Owners can enjoy light steering effort without the extra fuss of pump maintenance or fluid changes. Just remember to keep up with regular vehicle servicing to ensure all steering components are in good nick and performing as intended.