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4AA-WEB3S

Suzuki Fronx WEB3S specs

WEB3S is the model code of the Suzuki Fronx. Japan’s transport ministry lists it in its fuel economy lists from 2025–2026 under the model type 4AA-WEB3S. A genuine car’s chassis number starts WEB3S-.

WEB3S at a glance

Make
Suzuki
Model
Fronx
Model code
WEB3S
Model types
4AA-WEB3S
In MLIT’s lists
2025–2026
Engines
K15C 1,460 cc petrol
Gearboxes
6-speed automatic
Drive
four-wheel drive
Kerb weight
1,130 kg
Official fuel economy
17.8–20.2 km/L (50–57 mpg)

Fuel economy is from Japan’s official tests and is usually better than you’ll see on UK roads. MLIT doesn’t list power or torque.

4AA-WEB3S

Listed 2025–2026. The 4AA prefix (our explanation, not MLIT’s) means hybrid passenger car certified to Japan’s 2018 emissions rules, 25% below their limits. Check 4AA-WEB3S against ULEZ and clean air zones.

EngineGearboxDriveWeightSeatsFuel economyListed
K15C1,460 cc petrol6-speed automaticfour-wheel drive1,130 kg520.2 km/L57 mpg, Japanese JC08 test2025–2026
K15C1,460 cc petrol6-speed automaticfour-wheel drive1,130 kg517.8 km/L50 mpg, WLTC test2025–2026

Each row is one version as MLIT lists it. A version can appear twice when MLIT gave figures on two tests that year. Low-emission stars and trim names aren’t shown. MLIT gives fuel economy in km/L; the mpg figures are our conversion to UK gallons. Japanese tests are gentler than real UK driving, so expect less.

Check a WEB3S before you buy

Make sure the car is what the advert says: the chassis number on the V5C should start WEB3S-, and the engine and gearbox should match one of the versions above. Our free check reads the UK MOT history and compares it with the chassis code.

Other Suzuki Fronx model codes

Questions

What engine does the WEB3S have?

MLIT lists the Suzuki Fronx WEB3S with K15C 1,460 cc petrol.

What fuel economy does the WEB3S get?

Officially between 17.8 and 20.2 km/L (about 50–57 mpg), depending on the version, on Japan’s own tests. Real-world figures are usually lower, especially against the older 10-15 mode test.

How heavy is the WEB3S?

1,130 kg kerb weight.

Is 4AA-WEB3S the same as WEB3S?

Yes. 4AA-WEB3S is the full model type: the letters before the hyphen are Japan’s emissions code, which changed as the rules were tightened, and WEB3S is the model code. The chassis number starts with WEB3S-.

About these figures

The model types, engine codes, capacities, gearboxes, drive, weights, seats and km/L figures are copied from MLIT’s yearly lists of cars on sale in Japan each March, so “listed” years are list years, not exact production dates. The English model names, mpg conversions, emissions code explanations and chassis number matching are ours. Lists before 2013 were printed as PDFs that we read by machine; where an older list gives an engine code that doesn’t match its capacity, we’ve used the figure the same model type has in other years. Check anything that matters against the car’s own papers. Spotted a mistake? Email [email protected]. All Suzuki model codes.

Source: Ministry of Land, Infrastructure, Transport and Tourism (MLIT), Japan, fuel economy lists 2004–2026, used under the Public Data License 1.0. Edited and translated by JDM History.