Parts for your 2017 Toyota Avensis-Steering rack

2017 Toyota Avensis steering rack: what it does and how to look after it

Based on Toyota’s Avensis (T27) Repair Manual for Electric Power Steering, the Toyota Electronic Parts Catalogue, and mainstream workshop references such as Haynes and Autodata, the 2017 Toyota Avensis is fitted with an electric power–assisted rack‑and‑pinion steering rack (EPS), not a hydraulic system. That means there’s a steering rack present, with the assist motor and control module integrated to the rack assembly.

The steering rack’s job is straightforward: it converts the driver’s steering wheel input into side‑to‑side movement for the tie rods, pivoting the front wheels with accuracy. On the 2017 Avensis, the EPS motor adds assist directly to the rack bar, using torque and position sensors so the system can feel natural while saving fuel and cutting maintenance. No power‑steering fluid, no pump belt, and less parasitic drag.

As part of routine servicing on a 2017 Toyota Avensis steering rack, a technician will typically:

• Inspect rack boots (bellows) for tears or grease seepage, and check inner and outer tie‑rod ends for play.
• Listen for knocks over bumps or a clunk on initial steering input that can hint at inner joint wear or mounting bush issues.
• Check for EPS warning lights and scan the EPS ECU for fault codes after any kerb strike or pothole hit.
• Verify steering effort is even lock‑to‑lock and the wheel self‑centres properly.
• Measure wheel alignment and tyre wear, uneven wear can point to rack or tie‑rod concerns.
• Inspect the intermediate shaft/universal joints for stiffness or free play.

Replacement is considered when there’s excessive play, binding, persistent knocking, damaged rack teeth, split boots with contaminated joints, or EPS faults that trace to the rack assembly. On the Avensis, the rack isn’t serviceable internally in normal workshop practice, so swapping the complete unit (new or quality remanufactured) is the go‑to. Expect battery disconnection, subframe support or partial drop (model and engine dependent), transfer of inner/outer tie rods, and new mounting hardware where specified. After installation, a wheel alignment and steering angle zero‑point calibration with a proper scan tool are must‑dos to keep the EPS happy.

Good habit: have the steering checked every 20,000 km or 12 months, sooner if the car’s copped a decent pothole or kerb. Keeping tyres at correct pressures and avoiding holding full lock for long periods also helps the 2017 Toyota Avensis steering rack live a long, quiet life.

Popular questions about the 2017 Toyota Avensis steering rack

Does the 2017 Toyota Avensis have a hydraulic or electric steering rack?

It runs an electric power–assisted rack‑and‑pinion steering rack (EPS). There’s no hydraulic pump or fluid service to worry about, which trims running costs and improves efficiency. The assist motor and control unit are integrated with the rack assembly.

What are common signs the steering rack needs attention?

Tell‑tales include a clunk over bumps, free play at the wheel, notchy or heavy spots while turning, uneven tyre wear, the steering wheel not returning to centre, or an EPS warning light. After a hard kerb strike, it’s worth getting the rack, tie rods and alignment checked.

How long does replacement take and what else is needed?

Workshop time is typically 3–5 hours depending on engine and equipment. A wheel alignment is essential, and the EPS needs a steering angle zero‑point calibration with a scan tool. It’s smart to replace worn tie‑rod ends at the same time to avoid repeat labour.