Parts for your 2017 Mitsubishi Asx-Power steering fluid

2017 Mitsubishi ASX power steering fluid: not required

For the 2017 Mitsubishi ASX, power steering fluid isn’t relevant because the vehicle uses Electric Power Steering (EPS), not a hydraulic system. Technical references that confirm this include the 2017 ASX Owner’s Manual section on the “Electric power steering (EPS) warning lamp,” which identifies the system as electric-assist, the factory Service Manual (Power Steering – Group 37/EPS) that outlines an electric motor and control unit with no hydraulic pump, lines, or reservoir, and the scheduled maintenance chart, which lists no power steering fluid checks or replacement. Mitsubishi parts catalogues for the model year also show no pump, hoses, or fluid reservoir for ASX steering.

Because it’s EPS, there’s no power steering fluid to top up and no hydraulic hoses to leak. Assistance is provided by an electric motor on the steering rack under the command of an ECU, which keeps the steering light at parking speeds and firmer on the move. That design reduces servicing needs, removes a potential source of leaks, and can improve fuel efficiency because there’s no belt-driven pump.

What to expect under the bonnet: there’s no power steering reservoir cap to find, so owners won’t see a “PSF” bottle like on older hydraulic systems. Instead, look after the EPS by keeping the battery and charging system healthy (EPS is sensitive to low voltage), maintaining correct tyre pressures, and ensuring wheel alignment and suspension components are in good nick. If the steering ever feels heavy, inconsistent, or you see an EPS warning light on the dash, have a technician scan the system and inspect the rack, column, and associated sensors. It’s also a good idea to check the steering rack boots for damage and keep water away from electrical connectors during cleaning.

• No power steering fluid used or required
• Electric motor and ECU provide steering assist
• Focus maintenance on battery/charging, tyres, and alignment

FAQs

Does a 2017 Mitsubishi ASX need power steering fluid?
No. The 2017 ASX runs Electric Power Steering (EPS), so there’s no hydraulic fluid, pump, or reservoir. The Owner’s Manual references an EPS warning lamp, and the Service Manual section for Group 37 covers an electric system, not a hydraulic one.

Where is the power steering fluid reservoir on a 2017 ASX?
There isn’t one. Because the ASX uses EPS, you won’t find a power steering reservoir under the bonnet. If you’re checking fluids, you can skip looking for steering fluid entirely.

How do you maintain the steering system if there’s no fluid?
Keep the battery and alternator healthy, set tyre pressures correctly, and maintain wheel alignment and suspension components. If the EPS warning light appears or the steering feels odd, get a diagnostic scan and inspection of the rack and sensors.