Parts for your 2013 Suzuki Splash-Spark plugs

2013 Suzuki Splash spark plugs: what they do and when to replace them

Based on technical sources, spark plugs are indeed fitted to the 2013 Suzuki Splash when equipped with the petrol engines (K10B 1.0 and K12B 1.2). The Suzuki K10B/K12B engine service information for the Splash platform (RZ/A5, 2008–2014) specifies spark plug types and inspection intervals, and aftermarket catalogues from NGK and Denso list plug part numbers for these petrol variants. By contrast, the 1.3 DDiS diesel Splash (D13A/Fiat Multijet) uses compression ignition and glow plugs, not spark plugs, as confirmed in Suzuki/Fiat DDiS service literature. So spark plugs are relevant for 2013 Splash petrol models, while the diesel variant does not use them.

For the 2013 Suzuki Splash running a petrol K10B or K12B, the spark plugs are the tiny workhorses that light the fire every time the driver taps the starter. They create a controlled spark to ignite the air–fuel mix, keeping the little Suzuki smooth, peppy and efficient around town. Good plugs help cold starts on crisp Kiwi mornings and hot Aussie afternoons alike, stabilising idle and trimming fuel use.

Replacement timing depends on plug type and how the Splash is driven. Suzuki’s service schedules for these engines specify inspection at regular intervals and replacement by mileage/time, long-life iridium or platinum plugs typically go far longer than basic copper plugs. As a practical guide for local conditions: daily short trips, lots of idling, dusty roads or E10 fuel can shorten service life. Many owners opt to replace long-life plugs around the 90,000–100,000 km mark, whereas conventional plugs are often refreshed far sooner. Always follow the owner’s handbook or workshop manual spec for the exact interval and heat range.

When the bonnet is up, it pays to check more than just the electrodes. Look for oil in the plug wells (a rocker cover gasket weep can foul coils and plugs), make sure coil-on-plug boots aren’t cracked, and only remove plugs on a cool engine. Use the correct socket, keep grit out of the chambers, and reinstall to the factory torque rather than “by feel” to avoid damaging the alloy head. Anti-seize is usually unnecessary on modern plated threads unless the plug maker says otherwise. Fresh plugs can bring back crisp throttle response, easier starts and cleaner emissions.

• Common signs the Splash wants new plugs: rough idle, hesitation under load, misfire codes, a drop in fuel economy, or hard starting.
• Stick with the specified heat range and gap, most long-life plugs are pre-gapped and shouldn’t be filed.

If the vehicle is the 1.3 DDiS diesel, forget spark plugs entirely — that engine uses glow plugs for cold starts and different maintenance applies.

Popular questions

Do all 2013 Suzuki Splash models have spark plugs?
Not all. The petrol 1.0 (K10B) and 1.2 (K12B) versions do use spark plugs. The 1.3 DDiS diesel doesn’t use spark plugs at all, it relies on compression ignition and glow plugs for cold starts. Checking the build plate or engine code will confirm which system the car has.

How often should the spark plugs be replaced on a 2013 Splash?
It depends on the plug type and driving. Long-life iridium/platinum plugs typically run a very long interval, while basic copper plugs are serviced much sooner. Because use varies wildly in Australia and New Zealand, the safest bet is to follow the Suzuki schedule in the owner’s handbook, and have them inspected during routine services if the car does lots of short trips.

What kind of spark plug is best for a Splash?
Use the heat range and design specified by Suzuki for the K10B/K12B engine. Long-life iridium plugs are a great match for owners who want set-and-forget durability, while quality nickel plugs suit shorter service intervals. Avoid mixing types across cylinders and don’t alter the gap unless the plug maker and Suzuki specs say it’s required.