Parts for your 2011 Mazda Premacy-Steering rack

2011 Mazda Premacy steering rack — what it is and how to look after it

Based on technical references, a steering rack is absolutely relevant and fitted to the 2011 Mazda Premacy (CW series). Mazda’s workshop manual for the CW Premacy/Mazda 5 (2010–2013, Steering System section) specifies a rack-and-pinion steering gear with electro‑hydraulic power assist (EHPAS). The 2012 Mazda 5 Owner’s Manual also describes the EHPAS system, and Mazda’s OE parts catalogues list a complete steering gear (rack) assembly and associated inner/outer tie rods for this model. So yes—this vehicle uses a steering rack.

In this Premacy, the steering rack converts the steering wheel’s rotation into side‑to‑side movement to turn the front wheels, while the EHPAS electric pump provides hydraulic assistance for lighter, more controlled steering. The rack body, inner tie rods (rack ends), outer tie rods, and protective bellows boots all work together to keep the feel tight and the tyres tracking straight. When it’s healthy, drivers get consistent on‑centre feel, good feedback through the wheel, and even tyre wear over long kilometres.

As part of routine servicing of your 2011‑Mazda‑Premacy steering rack, it’s smart to keep an eye on a few tell‑tales and simple maintenance items:

• Inspect bellows boots for splits or fluid inside the boot. Any fluid suggests an internal seal leak.
• Check for free play or clunks when rocking the steering wheel with the engine off, movement at the inner or outer tie rods points to wear.
• Watch for heavy steering, inconsistent assist, or a whine from the EHPAS pump—these can indicate low or contaminated fluid.
• Look for uneven front tyre wear and drifting, these often trace back to worn tie rods or alignment issues.
• Use the Mazda‑specified ATF for the EHPAS reservoir and bleed the system correctly after any work.

When replacement is needed, a quality reconditioned or new rack is the go. On this model the rack is mounted to the front subframe, so access typically involves lowering the subframe and disconnecting the intermediate steering shaft. It’s good practice to replace inner and outer tie rods at the same time, fit new self‑locking nuts where specified, and torque everything to workshop manual specs. After installation, bleed the hydraulic system, recentre the wheel, and book a proper 4‑wheel alignment. If the vehicle is equipped with stability control, a steering angle calibration may also be required. A competent workshop will handle these in one hit, so the car tracks straight and the steering feels factory‑fresh.

• Does the 2011 Mazda Premacy use a steering rack or a steering box?
  It uses a rack‑and‑pinion steering rack with electro‑hydraulic power assist (EHPAS). This setup is lighter, more compact, and offers crisper road feel than the old‑school steering box designs.
• What are common symptoms of a worn steering rack on a 2011 Premacy?
  Clunks over bumps, vague on‑centre feel, fluid inside the bellows boots, heavy or inconsistent assist, and uneven front tyre wear. If the steering wheel doesn’t return to centre cleanly, that’s another hint.
• How much does rack replacement usually cost in Australia or New Zealand?
  As a ballpark, parts can run from mid‑hundreds to over a grand (AUD/NZD) depending on new vs reconditioned, with 3–5 hours’ labour typical. Add fluid, alignment, and any tie rod ends needed. Get a written quote so there are no surprises.