Parts for your 2016 Suzuki Splash-Ignition coils

2016 Suzuki Splash ignition coils — what they do and when to service them

Based on Suzuki’s Splash/Ritz workshop literature for the K10B and K12B petrol engines and Denso’s coil‑on‑plug (COP) technical guidance, the 2016 Suzuki Splash petrol variants are fitted with ignition coils (one per cylinder). By contrast, the 1.3 DDiS diesel (Fiat Multijet) described in the Suzuki/Fiat service manuals uses compression ignition, so it does not have ignition coils or spark plugs.

On petrol Splashes, the ignition coils sit directly on the spark plugs (COP design) and transform the 12‑volt battery supply into the high voltage needed to fire the plugs under load. That clean, strong spark keeps the little Suzuki smooth around town and frugal on the open road. Because the coils live in a hot, cramped space under the bonnet, they’re considered wear items over time.

There’s no strict replacement interval in Suzuki’s servicing information for the K10B/K12B, coils are typically replaced when faulty. As part of routine servicing, a technician will scan for misfire codes, check live data, and perform a simple “swap test” if a cylinder is suspect. It’s smart to inspect coil boots whenever spark plugs are changed (often 60,000–100,000 km depending on plug type) and replace any boots showing cracking, tracking, or oil contamination from a cam cover leak.

Common signs a Splash coil is on the way out include a rough idle, sluggish take‑off, increased fuel use, and a flashing or steady check‑engine light with P0300–P0304 codes. Left too long, persistent misfires can harm the catalytic converter, so it’s best to sort a dodgy coil promptly.

• Keep moisture out: avoid pressure‑washing the top of the engine, water can creep into the plug tubes.
• Use quality parts: stick to reputable OEM‑equivalent coils, mixed brands across cylinders are fine, but avoid bargain-bin unknowns.
• Mind the basics: fit new plugs to spec, seat coils squarely, and tighten hold‑down bolts to the factory torque. A smear of dielectric grease on the boot helps future removal.
• Plan ahead: carrying a spare coil on long trips isn’t silly—single COP failures are the most common.

Whether it’s the three‑cylinder K10B or the four‑cylinder K12B, a tidy ignition system keeps the Splash feeling perky and dependable. Regular checks during scheduled servicing in Australia or New Zealand conditions will catch coil issues early and save headaches down the track.

Popular questions about 2016 Suzuki Splash ignition coils

Does a 2016 Suzuki Splash have ignition coils, and how many?
Petrol models do, using coil‑on‑plug units: typically three coils on the 1.0‑litre K10B and four coils on the 1.2‑litre K12B. The 1.3 DDiS diesel doesn’t use ignition coils at all.

What are the symptoms of a failing ignition coil on a Splash?
Expect rough idle, hesitation, poor fuel economy, and a check‑engine light with misfire codes. It may feel fine when cold, then stumble warm, or act up under load on hills or motorway overtakes.

When should ignition coils be replaced?
There’s no fixed interval, replace when testing confirms a fault. Inspect coils whenever plugs are changed and any time misfire codes appear. If one fails at high kilometres, some owners proactively replace the full set, but it’s not mandatory.