Which Swift is it?
| Engine | What it means for the battery | |
|---|---|---|
| Second generation (2010 to 2017) | K12B petrol | A conventional 12-volt battery |
| Third generation (Japan from December 2016) | K12C Dualjet, or the K10C 1.0 turbo | Mild-hybrid versions add a small lithium-ion battery for the starter generator |
| Swift Sport (from 2018) | K14C 1.4 turbo | Fit the type the book lists |
| Japanese-market hybrid | K12C with an automated manual (AGS) | A lithium-ion hybrid battery as well as the 12-volt |
Slow to start on a frosty morning?
Cold weather shows up a weak battery, so winter is when a tired one tends to give out. Short trips make it worse: AA New Zealand says a car that's rarely driven, or only goes round the block, may never put back what the starter took.
Ask for a load test and a charging check together. If the battery passes, the cause is elsewhere, like the alternator or something left drawing power. The MTA points out that a car not locked with its remote can keep its computers awake and slowly drain the battery. Our flat battery page covers getting going safely.
Mild-hybrid and idle-stop Swifts
Plenty of third-generation Swifts are mild hybrids. A belt-driven starter generator helps the engine pull away and recovers energy as you slow down, and it has its own small lithium-ion battery, separate from the 12-volt one.
If the engine switches off at the lights, the car has start-stop, and AA New Zealand says those cars need an AGM battery; another type hurts the fuel-saving system. Suzuki New Zealand covers the hybrid parts (the motor generator, the lithium battery and the DC/DC converter) for 5 years or 100,000 km, but only on Swifts it supplied, so an import's hybrid parts sit outside that cover.
Engine light on in a Suzuki Swift
A steady orange engine light means the engine computer has stored a fault code, and it should be read soon. A flashing one means a severe fault: pull over somewhere safe and switch off.
One trap worth knowing: AA New Zealand says flat batteries and badly done jump starts can upset or damage the engine computer, and the engine light is one of the signs. If the light arrived just after a flat battery, mention it. On a Japanese import, say so too, so the mechanic brings a scan tool that reads the Japanese-market system. What an engine light means has the first steps.
Suzuki Swift problems on Japanese imports
Suzuki New Zealand's own advice on imports is plain: they often arrive without a traceable service history, the manual is in Japanese, and a model never sold new here relies on used or imported parts. So the first service on an imported Swift should catch what compliance skips. AA Motoring notes imports usually get an oil and filter change on entry, but the air filter, gearbox fluid and spark plugs may still need doing.
The good news is under the bonnet. Swift K-series engines drive their camshafts with a chain, so there's no cambelt to chase.
Where we'd start with a Swift
We'd have the battery and charging system tested before buying anything, and confirm whether it's an idle-stop or mild-hybrid car so the right battery goes in. If the engine light is on as well, ask for the fault code in writing, and mention any recent jump start. A local mechanic who specialises in your car.