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Parts for your 2018 Toyota Wish-Steering rack
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2018 Toyota Wish Steering Rack — What’s Fitted and How It’s Looked After
Yes, the 2018-registered Toyota Wish uses a rack-and-pinion steering rack with electric power steering (EPS). This is documented in Toyota’s Wish Repair Manual for the ZGE20/21/25 series (Steering: Steering Gear & Linkage and EPS sections) and the Toyota Electronic Parts Catalogue (EPC) which lists the steering gear assembly, rack ends, tie-rod ends and boots for ZGE2# models. While production ceased in 2017, many cars were first registered in 2018, the steering hardware is the same.
The steering rack’s job is simple but critical: it turns the driver’s input at the wheel into precise left–right movement at the front wheels. On the Wish, the EPS system adds assistance without hydraulic fluid or a belt-driven pump, so it’s lighter, more efficient, and typically quieter around town. A healthy rack means straight tracking on the motorway, predictable turn-in, even tyre wear and a nicely weighted wheel.
Servicing the rack is mostly about inspection and prevention. At regular services (or WOF/rego checks in NZ), a technician should look for split rack boots, play in the inner tie rods (rack ends) and outer tie-rod ends, and any corrosion on the rack bar. Because it’s EPS, there shouldn’t be any power-steering fluid to leak, if moisture or grime is found inside the boots, it’s a red flag for wear or water ingress.
- Common signs it needs attention:
- Knock or clunk over bumps felt through the wheel
- Free play or a vague on-centre feel
- Steering that doesn’t self-centre cleanly
- Uneven or rapid tyre wear despite correct pressures
- EPS warning light or assistance that’s inconsistent
If replacement is on the cards, quality matters. Reconditioned or new genuine-equivalent racks with fresh rack ends and boots tend to last and steer better. On installation, technicians should:
- Torque subframe and rack fasteners to spec (per Toyota Repair Manual, Steering section)
- Centre the rack and steering wheel correctly
- Perform a four-wheel alignment
- Carry out EPS/steering angle zero-point calibration using a scan tool (as outlined in Toyota’s EPS procedures and New Car Features notes for EPS)
For Aussie and Kiwi conditions—coastal air, corrugations and the odd pothole—checking the rack ends and boots every 10,000–15,000 km is smart. Keep tyres matched and pressures set, and maintain good battery health, EPS doesn’t like low voltage. Do that, and the Wish stays light, accurate and confidence-inspiring on the school run or the weekend dash.
Popular questions about the 2018 Toyota Wish steering rack
Q: How often should the steering rack be checked on a 2018 Wish?
It’s wise to have it inspected at every service or at least every 10,000–15,000 km, with a closer look if you’ve hit a pothole, kerb, or noticed new noises. In NZ, a WOF inspection should also pick up play or boot damage, but a dedicated check during servicing is still recommended.
Ask the workshop to check rack boots, inner and outer tie rods, steering free play, and to road test for clunks or wander. A quick alignment check helps catch early wear that shows up as uneven tyre scrub.
Q: Do you need calibration after replacing the steering rack?
Yes. After a rack swap, the steering angle sensor and EPS need zero-point calibration so the system knows straight-ahead precisely. This is done with a scan tool following Toyota’s EPS procedure. Skipping calibration can leave the car with a crooked wheel, assistance that feels odd, or stability control that intervenes too eagerly.
Always follow with a proper four-wheel alignment to set toe accurately and protect your tyres.
Q: Is there any power-steering fluid to change on the Wish?
No. The Wish uses electric power steering, so there’s no hydraulic fluid or pump to service. If you spot oily residue near the rack, it’s likely from another component or contamination, the rack boots should be dry and intact. Keep the EPS happy with a healthy battery and clean electrical connections.
If assistance feels heavy or intermittent, have a technician scan the EPS for fault codes and check the basics—tyre pressures, alignment, and front suspension condition.
