Parts for your 2015 Subaru Impreza-Steering rack

2015 Subaru Impreza Steering Rack

Technical sources confirm the 2015 Subaru Impreza is fitted with a steering rack. The Subaru Factory Service Manual for the 2015MY Impreza (GJ/GP) details an electric power steering (EPS) rack-and-pinion unit in the Steering section, and Subaru’s genuine parts catalog lists a complete steering gear (steering rack) assembly with inner tie rods and boots. Subaru technical bulletins relating to the EPS also reference the steering gear. On that basis, a steering rack is absolutely relevant to this model.

On the 2015 Impreza, the steering rack converts steering wheel rotation into precise side-to-side movement that turns the front wheels via the tie rods. Because it’s an EPS design, assist is provided by an electric motor integrated with the rack, so there’s no hydraulic pump, no fluid reservoir, and no power-steering hoses to service. The result is lighter weight, better fuel economy, and consistent assist at urban and motorway speeds.

As part of regular servicing, a quick look-over of the steering rack pays off. A technician will check for free play, knocks over bumps, and any binding or notchy feel. The rack boots should be intact with no tears, and there shouldn’t be grease contamination or water ingress. Electrical connectors to the EPS motor and sensors should be clean and secure. Because there’s no fluid, maintenance is mostly inspection-based.

• Common signs a steering rack needs attention:
  • Steering feels notchy or heavy, or there’s a dead spot on centre.
  • Clunks or knocks through the column on rough roads.
  • Uneven or accelerated tyre wear despite correct alignment.
  • EPS warning light or intermittent assist.

If replacement is required, it’s a straight swap of the rack assembly, followed by wheel alignment and EPS/steering angle sensor calibration. It’s smart to renew the inner tie rods and rack boots at the same time if there’s wear. After fitting, the wheel should be centred, the column pinch bolt correctly torqued, and a proper road test done to confirm steering effort and return-to-centre feel are spot on.

• Service tips for longevity:
  • Inspect the rack, boots, and tie rods at every service interval.
  • Address suspension bush or strut issues early, extra play can stress the rack.
  • Keep tyres at correct pressures and get alignments after curb or pothole hits.

FAQs

Does the 2015 Subaru Impreza use hydraulic or electric power steering?
The 2015 Impreza uses an electric power steering (EPS) rack-and-pinion setup. There’s no hydraulic pump, fluid, or hoses to maintain, which keeps servicing simpler and reduces parasitic load on the engine.

This EPS rack integrates the assist motor with the steering gear, delivering consistent assist and good road feel when everything is in good nick.

How long should a steering rack last on a 2015 Impreza?
With normal driving and regular inspections, many EPS racks last well beyond 150,000 km. Life depends on road conditions, tyre and alignment care, and whether suspension wear is addressed promptly.

Torn rack boots, water ingress, or prolonged driving with worn tie rods can shorten rack life, so those simple checks at each service make a big difference.

Can a worn steering rack cause uneven tyre wear?
Yes. Excess play in the rack or inner tie rods can lead to toe changes that scrub tyres. If uneven wear persists after a proper alignment, the steering rack and tie rods should be checked for play and binding.

Fixing the underlying steering or suspension issue and then re-aligning the wheels usually restores even tyre wear.