Parts for your 2017 Subaru Legacy-Power steering fluid

Power Steering Fluid and the 2017 Subaru Legacy: What You Need to Know

When it comes to the 2017 Subaru Legacy, a common question car owners ask is whether the vehicle uses power steering fluid. In many traditional vehicles, power steering fluid is an essential component for the hydraulic power steering systems, helping to ensure smooth and easy steering. However, the 2017 Subaru Legacy does not rely on the typical hydraulic power steering system that requires power steering fluid.

The 2017 Subaru Legacy is equipped with an electric power steering (EPS) system rather than a hydraulic one. Unlike hydraulic systems, EPS uses an electric motor to assist the driver with steering, which means there is no use or need for hydraulic power steering fluid in this vehicle. This shift from hydraulic to electric steering systems is becoming more common across many modern cars due to reasons like improved fuel efficiency, reduced maintenance costs, and better steering precision.

So why is there no power steering fluid used? Power steering fluid is traditionally found in hydraulic power steering systems, which operate by using pressurized fluid to amplify the driver's steering input. This fluid circulates through a pump, valves, and steering gear to reduce the effort needed for turning the wheels. Since the 2017 Subaru Legacy uses an electronic motor to provide this functionality, all those fluid-filled components simply do not exist in the system.

This electronic system eliminates the need to check, top up, or replace power steering fluid, making it a hassle-free experience for drivers who don't want the regular maintenance involved with hydraulic steering systems. The lack of fluid also means there is no risk of leaks or contamination which are common problems in hydraulic setups.

But if the 2017 Subaru Legacy does not require power steering fluid, what kind of maintenance does it need for its steering system? The EPS system relies on electronic control units and electric motors, which generally require far less routine maintenance. The main focus for ensuring the steering system works well falls on regular vehicle inspections, wheel alignment checks, and addressing steering rack or motor issues if they develop.

Of course, it is still important to keep an eye on the steering feel while driving. If the steering becomes heavy, erratic, or if there is any unusual noise while turning the wheel, these could be signs that the electric power steering system needs a diagnostic check by a qualified mechanic. Unlike hydraulic systems, you won't be topping up a fluid reservoir but rather investigating electrical components or sensor issues.

Even though the 2017 Subaru Legacy does not use power steering fluid, understanding what power steering fluid does can be helpful context when comparing vehicles or discussing maintenance with others. Power steering fluid in a hydraulic system acts much like oil in an engine - it lubricates, transfers hydraulic pressure, and helps keep the steering components working efficiently. It needs to be replaced periodically to prevent contamination and maintain the best steering performance.

If the 2017 Subaru Legacy were fitted with a hydraulic power steering system, regular checks of the power steering fluid level during servicing would be essential. This involves inspecting the fluid reservoir for proper levels, ensuring the fluid is clean, and topping it up with the correct manufacturer-recommended fluid if needed. Over time, the fluid can degrade or become contaminated with moisture and debris, which could lead to steering noise, reduced assistance, or damage to the system.

A power steering fluid change typically occurs every 50,000 to 100,000 kilometres, depending on the vehicle and driving conditions. Using the wrong type of fluid or neglecting fluid maintenance often results in costly repairs, including potential pump or rack replacement. Regular servicing that includes power steering fluid checks helps avoid such problems by maintaining the integrity of the system and the quality of the fluid.

So, while the 2017 Subaru Legacy does not use power steering fluid at all, owners coming from other vehicles may appreciate the ease that comes with an electric setup. No topping up of fluid, no messy leaks, and no particular fluid maintenance means you can concentrate more on enjoying the drive and less on steering system upkeep.