Parts for your 2013 Mazda 3-Power steering fluid

2013 Mazda 3 power-steering fluid — what’s used and how to look after it

For the 2013 Mazda 3 (BL series), power-steering fluid is relevant because the model range uses an electro‑hydraulic power steering system with a serviceable fluid reservoir. This setup is confirmed in Mazda’s BL-series workshop literature and parts catalogues, which specify a hydraulic rack assisted by an electrically driven pump. The next-generation BM (2014‑on) moved to full electric power steering with no fluid, so that’s where the no‑fluid change happens. If there’s a power-steering reservoir in the engine bay of a 2013 Mazda 3, it takes fluid.

What does the fluid do? It’s the lifeblood of the steering assist, transmitting hydraulic pressure from the pump to the steering rack so the wheel feels light at parking speeds and stable on the motorway. Clean, correct-spec fluid keeps assistance smooth, protects the pump and rack from wear, and helps keep noise at bay.

Servicing advice for a 2013 Mazda 3’s power-steering fluid is straightforward. Mazda doesn’t always publish a strict change interval, but most good workshops in Australia and New Zealand check the level and condition at every service and replace the fluid every 60,000–100,000 km or around 3–5 years, sooner if it looks dark, smells burnt, or there’s any contamination. Always use the exact spec on the reservoir cap or in the owner’s manual, many local BL models specify Mazda Genuine Power Steering Fluid or a Dexron III–type ATF equivalent. Mixing the wrong fluid can cause pump whine or seal issues.

• Level check: With the car on level ground, check the min/max marks on the reservoir. Top up only to the mark, don’t overfill.
• Condition check: Healthy fluid is clean and consistent in colour. Milky or foamy fluid points to air ingress, dark, burnt-smelling fluid needs replacement.
• Replacement: A full exchange is best. After refilling, bleed by turning the wheel lock‑to‑lock several times with the engine running, topping up as needed, and rechecking for foam and level once settled.
• Watch for leaks: Common spots include hose crimps, pump seals and rack boots. Any wetness around these areas deserves a closer look.

Quick note: if a particular 2013 Mazda 3 doesn’t have a power‑steering reservoir at all, it’s likely been fitted with electric assist and won’t use fluid. Otherwise, keeping the right fluid fresh is cheap insurance for quiet, accurate steering and long component life.

Popular questions about 2013 Mazda 3 power-steering fluid

What type of power-steering fluid does a 2013 Mazda 3 take?
Most BL-series cars in AU/NZ use Mazda Genuine Power Steering Fluid or an equivalent Dexron III–type ATF. Check the reservoir cap and owner’s manual to confirm the exact spec for the vehicle. Using the correct fluid prevents pump noise and seal problems.

How often should the power-steering fluid be changed?
While Mazda may not list a strict interval, many workshops suggest every 60,000–100,000 km or 3–5 years. Replace sooner if it’s dark, smells burnt, or there’s any contamination. Regular checks at each service help catch issues early.

Where is the reservoir and how do you bleed the system?
The reservoir is typically mounted in the engine bay with min/max marks on the side. After a fluid change, bleed by turning the wheel slowly from lock to lock several times with the engine running, then recheck fluid level and look for any foaming.