Parts for your 2014 Toyota Bb-Steering rack

2014 Toyota bB steering rack — what it does and how to look after it

Technical sources confirm the 2014 Toyota bB does use a steering rack. Toyota’s workshop literature for the QNC2# series (2012–2016 model years) specifies a rack-and-pinion steering gear paired with column-assist electric power steering (EPS), and Toyota’s electronic parts catalog lists the steering gear assembly under group 45 (typical base part number 45510). That means a steering rack is absolutely relevant to the 2014 bB.

On this model, the rack-and-pinion converts the driver’s steering wheel input into precise left-right motion that sets the toe angle via the inner and outer tie rods. Because the bB runs column-assist EPS, the assist motor sits on the steering column rather than the rack, so there’s no power-steering fluid, hoses, or pump to worry about. The rack itself remains the heart of the linkage, keeping the front wheels tracking straight and responding crisply to inputs around town and on the open road.

For servicing, it’s worth a quick look under the bonnet and along the subframe at each service interval. There’s no hydraulic fluid to flush, so care focuses on inspection and adjustment. A tidy, well-sealed rack keeps tyres wearing evenly and the steering feel spot on.

• What to watch for: split or oily rack boots, free play at the inner or outer tie rods, knocks over bumps, a notchy feel off-centre, tramlining or wander, and uneven tyre wear.
• Inspection tips: check both rack boots for cracks or grease weep, feel for play at 3-and-9 o’clock on each front wheel, and look at rack mounting bushes for deformation.

If the rack or tie rods need attention, a quality genuine or reputable remanufactured rack is the go. Replace inner and outer tie rods as a pair if wear is present, fit new boot clamps, and always use new tie-rod end nuts/cotters. After any steering work, a four-wheel alignment is non-negotiable. Because this bB uses EPS, a steering angle/centre or torque-sensor zero-point calibration with a scan tool (e.g., Techstream) may be required to keep assistance smooth and the stability systems happy. Torque fasteners to Toyota specifications and ensure the column universal joints are refitted on their marks.

Driving around Australia and New Zealand, a well-looked-after rack should last many years and well into high kilometres. Regular checks during routine servicing will catch small issues early, saving tyres and keeping the bB feeling tight and confidence-inspiring.

Popular questions

Does the 2014 Toyota bB use a steering rack or a steering box?

It uses a rack-and-pinion steering rack. Toyota’s QNC2# workshop documentation and parts catalog list a rack-and-pinion gear with column-assist electric power steering. So there’s no hydraulic pump or lines, but the rack is very much part of the system.

Is there power-steering fluid to service on a 2014 bB?

No. The 2014 bB runs column-assist EPS, so there’s no hydraulic fluid. Maintenance focuses on inspecting rack boots, tie rods, and bushes, plus performing a wheel alignment and doing an EPS centre/zero-point calibration after relevant steering work.

How long should a steering rack last on a bB?

With normal use on Aussie and Kiwi roads, many last well past 150,000–250,000 km. Lifespan depends on potholes, kerb strikes, and boot integrity. Early signs like clunks, play, or uneven tyre wear should be checked quickly to avoid accelerated damage.