NGK Iridium Spark Plug
NGK Spark Plugs · Part number IFR5E13 · NZ$64.00 incl. GST
For your zippy Mazda 2 Demio or Mazda 3 Axela, spark plugs are the unsung heroes firing up your engine's air-fuel mix, directly impacting everything from your fuel economy to that smooth, responsive acceleration you need for navigating our Kiwi roads.
Price
NZ$64.00 including GST. Part number IFR5E13.
Fits these vehicles
- Mazda 2 (2007–2014)
- Mazda 2 (2007–2015)
- Mazda 2 (2007–2015)
- Mazda 2 (2010–2015)
- Mazda 2 (2012–2014)
- Mazda 3 (2003–2009)
- Mazda 3 (2003–2009)
- Mazda 3 (2008–2013)
Description
Spark Plug Swap for Your Mazda 2 or 3: Get That Spark Back!
> Spark plugs are literally the ignition source, creating the electrical zap that kicks off combustion in your petrol engine. Over time, those electrodes wear down and carbon builds up, leading to a weaker spark. The result? Misfires, a rough-as-guts engine, and suddenly you're burning more fuel than a V8 ute — especially noticeable in those efficient little Mazda 2 Demios and Mazda 3 Axelas that rely on precise combustion for their peppy, yet economical, performance.
Symptoms That Led You Here
• Engine misfires or stumbling under acceleration
• Rough or lumpy idle, especially when cold
• Noticeably worse fuel economy than usual
• Check engine light illuminated (often P0300-P0304 misfire codes)
• Sluggish throttle response in stop-start city driving
• Difficulty starting, particularly on cold Kiwi mornings
Will it pass WOF?
Spark plugs themselves aren't a direct WOF inspection item, but the symptoms of worn plugs—such as excessive emissions, engine warning lights, or an engine that won't run properly—can cause a WOF failure. Keeping your ignition system healthy ensures your Mazda runs clean and reliable for inspection.
DIY or Workshop?
Difficulty: 3/10 — Spark plug replacement on the Mazda 2 and Mazda 3's inline-4 engines is straightforward weekend DIY territory.
Estimated time: 30-45 minutes
Tools required:
• 10mm socket (for engine cover, if fitted)
• Spark plug socket (16mm for most Mazda applications)
• Ratchet with extension bar
• Torque wrench (crucial—overtightening cracks heads)
• Anti-seize compound (thin coat on threads)
• Gap gauge (verify plug gap matches spec, typically 1.0-1.1mm)
Expert Recommendation
Bob @ CARFIX recommends replacing spark plugs every 30,000-40,000 km for standard copper-core plugs, or up to 100,000 km for iridium/platinum types—whichever your Mazda's service schedule specifies. Worn plugs rob these efficient little engines of the crisp throttle response and fuel economy they're known for. Bob @ CARFIX is always on hand to help you work out exactly what plug suits your Mazda 2 or Mazda 3. Make sure you head over to Bob's Shop for a chat!
Fitment Notes
• Confirmed fitment for Mazda 2 Demio variants (2007-2015) and Mazda 3 Axela (2003-2013)
• Always verify your engine code (ZY-VE, Z6, LF-DE) as plug specifications can vary
• Demio and Axela models share similar Mazda MZR engine architecture, but double-check reach and heat range
• If your vehicle has been modified or runs a non-standard tune, consult Bob for appropriate heat range advice
---
🛠️ Bob's Pro Tip: Do the Job Right!
> If you're replacing this spark plug, make sure you've got the right workshop prep, protection, and safety gear ready. Taking a bit of extra time and using the proper safety stands and cleaners makes all the difference for a professional result!
🧰 What Else You'll Need:
• Safety First: Always secure your vehicle on heavy-duty safety jack stands before working underneath. Never rely solely on a hydraulic jack.
• Clean Hands: Keep a pack of Nitrile Gloves handy to protect your skin from grease, oils, and chemical sprays.
• Preparation: Have microfibre towels and a suitable parts cleaner nearby to keep components clean during installation.