Parts for your 2018 Toyota Avensis-Steering rack

2018 Toyota Avensis steering rack: what it does and how to look after it

Technical documentation for the Avensis T27 (Toyota TechDoc/TIS steering section), the Toyota Electronic Parts Catalogue (EPC), and OE supplier catalogues (JTEKT/Koyo and TRW) all list a rack‑and‑pinion “steering gear assembly” for 2018 models. So yes, the 2018 Toyota Avensis is fitted with a steering rack, and it’s very relevant to how the car drives and steers.

The steering rack converts the driver’s turn at the wheel into a left/right push on the tie rods, swinging the front wheels with precision. On the 2018 Avensis it’s paired with electric power steering (EPS), typically with a column‑assist motor. Even with EPS doing the assisting, the rack itself is the mechanical heart of the system—key to road feel, straight‑line stability, and tyre life.

As part of regular servicing, it’s smart to give the steering rack a once‑over. Look for split rack boots (gaiters), play in inner and outer tie‑rod ends, and any signs of water or grit ingress. With EPS there aren’t hydraulic lines to leak, but a torn boot can still let contaminants in and wear the rack teeth, bearings, or bushes. While the car’s up, a quick check for free movement lock‑to‑lock and any knocking over bumps goes a long way.

• Common symptoms worth investigating:
  • Notchy or uneven steering feel, especially near centre
  • Clunks over rough roads or when rocking the wheel at standstill
  • Steering wheel off‑centre or wandering, uneven tyre wear
  • EPS warning lamp or new noises after kerb strikes

If a replacement rack is needed, quality matters—genuine or reputable reman units help keep on‑centre feel and durability. Best practice includes new inner/outer tie rods as required, fresh boots and clamps, and a four‑wheel alignment afterwards. On EPS cars, a scan tool procedure is usually required: perform steering angle neutral position and torque/zero‑point calibration so the assist behaves correctly. If the subframe is lowered to remove the rack, use new fasteners where specified and torque everything to spec.

For ongoing care, inspect the rack, tie rods, and boots at each service or at least every 20,000–30,000 kilometres. Keep tyre pressures spot on and rotate regularly—light, even loads help the rack, bushes, and tyres last longer. If the Avensis starts to feel vague, pulls under braking, or develops a knock, get it checked early, small steering issues can snowball into bigger bills or a WOF/roadworthy fail in NZ or Australia.

Does the 2018 Avensis use electric or hydraulic assist on the steering rack?

The 2018 Avensis uses electric power steering (EPS), typically column‑assist, working with a conventional rack‑and‑pinion steering rack. There are no hydraulic hoses or pump, which reduces service points and the chance of fluid leaks.

What are the tell‑tale signs the steering rack or tie rods need attention?

Listen and feel for knocks over bumps, a notchy or heavy spot when turning, wandering on the motorway, or tyres wearing unevenly. After a pothole hit, any new clunk or an off‑centre wheel is a cue to inspect the rack boots and tie rods and to book an alignment.

Do you need a wheel alignment after replacing the steering rack?

Absolutely. Any time the rack or tie rods are disturbed, a full alignment is needed to set toe accurately and recentre the steering wheel. After installation on an EPS Avensis, also run steering angle and zero‑point calibrations with a scan tool so the assist functions correctly.